YAMAMOTO Masafumi

J-GLOBAL         Last updated: Dec 17, 2013 at 17:29
 
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Name
YAMAMOTO Masafumi
URL
http://nsed.ist.hokudai.ac.jp/index.html
Affiliation
Hokkaido University
Section
Graduate School of Information Science and Technology, Division of Electronics for Informatics, Advanced Electronics
Job title
Professor
Degree
Master of Science(Hokkaido University)

Research Interests

 
 

Research Areas

 
 

Academic & Professional Experience

 
Apr 2004
 - 
Today
Professor, Garduate School of Information Science and Technology, Hokkaido University
 
Apr 2000
 - 
Mar 2004
Professor, Graduate Schhol of Engineering, Hokkaido University
 

Committee Memberships

 
2010
 - 
2011
The Japan Society of Applied Physics  Program Committee Member, 2011 International Conference on Solid State Devices and Materials
 
2011
   
 
The Japan Society of Applied Physics  Program Committee Member, 2012 International Conference on Solid State Devices and Materials
 
2009
 - 
2010
The Japan Society of Applied Physics  Program Committee Member, 2010 International Conference on Solid State Devices and Materials
 
2008
 - 
2009
The Japan Society of Applied Physics  Program Committee Member, 2009 International Conference on Solid State Devices and Materials
 

Published Papers

 
Effect of CoFe insertion on spin injection properties of Co2MnSi/CoFe/n-GaAs junctions
Y. Ebina, T. Akiho, H. Liu, M. Yamamoto, and T. Uemura
58th Annual Conf. on Magnetism and Magnetic Materials, Abstracts   108 (AX-01)   Nov 2013   [Refereed]
Spin and symmetry properties of the buried Co2MnSi/MgO interface
R. Fetzer, Y. Ohdaira, H. Naganuma, M. Oogane, Y. Ando, T. Taira, T. Uemura, M. Yamamoto, M. Aeschlimann and M. Cinchetti
58th Annual Conf. on Magnetism and Magnetic Materials, Abstracts   624 (GB-14)   Nov 2013   [Refereed]
Non-symmetric Interfaces in Symmetric Mn-Deficient Co2MnSi/MgO/Co2MnSi Magnetic Tunnel Junctions Investigated by High Resolution Scanning Transmission Electron Microscopy
F. Shi, H. Liu, M. Yamamoto and P. Voyles
58th Annual Conf. on Magnetism and Magnetic Materials, Abstracts   658 (GH-05)   Nov 2013   [Refereed]
Spin-dependent transport properties of strained InGaAs channel investigated through all electrical spin
T. Akiho, M. Yamamoto, and T. Uemura
58th Annual Conf. on Magnetism and Magnetic Materials, Abstracts   716 (HB-10)   Nov 2013   [Refereed]
Giant tunnel magnetoresistance in fully epitaxial Co2(Mn,Fe)Si/MgO/Co2(Mn,Fe)Si magnetic tunnel junctions
T. Kawami, H. Liu, Y. Honda, K. M. Ayele, T. Uemura, F. Shi, P. M. Voyles and M. Yamamoto
58th Annual Conf. on Magnetism and Magnetic Materials, Abstracts   614 (FX-03)   Nov 2013   [Refereed]
T. Akiho, J. Shan, H.-x. Liu, K.-i. Matsuda, M. Yamamoto, and T. Uemura
Physical Review B   87(23) 235205 (7pp)   Jun 2013   [Refereed]
R. Fetzer, J.-P. Wuestenberg, T. Taira, T. Uemura, M. Yamamoto, M. Aeschlimann, and M. Cinchetti
Physical Review B   87(18) 184418 (7pp)   May 2013   [Refereed]
Siham Ouardi, G. H. Fecher, S. Chadov, B. Balke, X. Kozina, C. Felser, T. Taira, and M. Yamamoto
Applied Physics A: Materials Science & Processing   111(2) 395-405   May 2013   [Refereed][Invited]
High Resolution Scanning Transmission Electron Microscopy Shows MnMn/O Termination at the Co2MnSi/MgO Interface in a Magnetic Tunnel Junction
F. Shi, H.-x. Liu, M. Yamamoto, and P. Voyles
2013 Material Research Society (MRS) Spring Meeting (CD-ROM)   DD 15.02   Apr 2013   [Refereed]
MnMn/O and CoCo/O terminations at Co2MnSi/MgO interface in a magnetic tunnel junction investigated by high resolution scanning transmission electron microscopy
F. Shi, H.-x. Liu, M. Yamamoto, and P. Voyles
12th Joint MMM/Intermag Conference, Abstracts   57 (AI-01)   Jan 2013   [Refereed]
Influence of interfacial structural properties on tunnel magnetoresistance in epitaxial magnetic tunnel junctions with Co2MnSi electrode and MgO barrier
H.-x. Liu, Y. Honda, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
12th Joint MMM/Intermag Conference, Abstracts   507 (EI-09)   Jan 2013   [Refereed]
Transient effects on oblique Hanle signals observed in ferromagnet/semiconductor heterojunctions with non-local four-terminal configuration
T. Akiho, J.-h. Shan, K.-i. Matsuda, M. Yamamoto, and T. Uemura
12th Joint MMM/Intermag Conference, Abstracts   871 (HR-04)   Jan 2013   [Refereed]
V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, T. Kadono, A. Fujimori, D. Asakura, T. Koide, Y. Miura, M. Shirai, G.-f. Li, T. Taira, and M. Yamamoto
Physical Review B   86(14) 144412 (6pp)   Oct 2012   [Refereed]
Tunnel barrier thickness dependence of Hanle-type signals in CoFe/MgO/n-Ge tunnel junctions investigated through three-terminal configuration
G.-f. Li, M. Miki, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 17th Int’l Conf. on Molecular Beam Epitaxy (MBE 2012), Abstracts   5 (MoA-1-2)   Sep 2012   [Refereed]
Tunnel barrier thickness dependence of Hanle-type signals in CoFe/MgO/n-Si and CoFe/MgO/n-Ge junctions investigated through three-terminal configuration
T. Uemura, G.-f. Li, J. Fujisawa, K. Kondo, K.-i. Matsuda, and M. Yamamoto
2012 Int'l Conference on Solid State Devices and Materials (SSDM 2012), Extended Abstracts (USB memory)   1223-1224   Sep 2012   [Refereed]
Transient oblique Hanle signals observed in Co2MnSi/CoFe/n-GaAs with non-local four-terminal configuration
J.-h. Shan, T. Akiho, K.-i. Matsuda, M. Yamamoto, and T. Uemura
2012 Int'l Conference on Solid State Devices and Materials (SSDM 2012), Extended Abstracts (USB memory)   1219-1220   Sep 2012   [Refereed]
Temperature dependence of spin-dependent tunneling resistances of MgO-buffered Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
Y. Honda, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2012 Int'l Conference on Solid State Devices and Materials (SSDM 2012), Extended Abstracts (USB memory)   1197-1198   Sep 2012   [Refereed]
H.-x. Liu, Y. Honda, T. Taira, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
Applied Physics Letters   101(13) 32481 (5pp)   Sep 2012   [Refereed]
T. Uemura, K. Kondo, J. Fujisawa, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   101(13) 132411 (4pp)   Sep 2012   [Refereed]
H.-x. Liu, Y. Honda, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
Japanese Journal of Applied Physics   51(9) 093004 (9pp)   Sep 2012   [Refereed]
G.-f. Li, T. Taira, H.-x. Liu, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
Japanese Journal of Applied Physics   51(2) 0930030 (5pp)   Sep 2012   [Refereed]
Spin-polarization measurements for Co2MnSi using Co2MnSi/MgO/NbN epitaxial tunnel junctions
Ken-ichi Matsuda, Takaho Shinoki, Tomoyuki Taira, Tetsuya Uemura, and Masafumi Yamamoto
The 19th Int’l Conf. on Magnetism (ICM2012), Abstracts   351 (SK06)   Jul 2012   [Refereed]
Electrical spin injection from Co2MnSi Heusler alloy into GaAs and electrical detection of dynamic nuclear polarization
T. Akiho, T. Uemura, K.-i. Matsuda, and M. Yamamoto
Int’l Magnetics Conf. 2012 (INTERMAG 2012), Digests (USB memory)   AD-03   May 2012   [Refereed]
MgO thickness dependence of spin accumulation signal in Co50Fe50/MgO/Si
T. Uemura, J. Fujisawa, K.-i. Matsuda, and M. Yamamoto
Int’l Magnetics Conf. 2012 (INTERMAG 2012), Digests (USB memory)   AD-06   May 2012   [Refereed]
Temperature dependence of spin-dependent tunneling conductances of fully epitaxial Co2MnSi-based magnetic tunnel junctions
H.-x. Liu, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Int’l Magnetics Conf. 2012 (INTERMAG 2012), Digests (USB memory)   EB-10   May 2012   [Refereed]
Possibility of Superconducting Proximity Effect of Equal-spin Triplet Components in NbN/Co2Cr0.6Fe0.4Al/NbN Junctions
Ken-ichi Matsuda, Tetsuya Uemura, and Masafumi Yamamoto
Int’l Conf. on Topological Quantum Phenomena (TQP2012), Abstracts   149 (PB23)   May 2012   [Refereed]
A. Gloskovskii, G. Stryganyuk, G. H. Fecher, C. Felser, S.Thiess, H. Schulz-Ritter, W. Drube, G. Berner, M. Sing, R. Claessen, and M. Yamamoto
Journal of Electron Spectroscopy and Related Phenomena   185 47-52   Mar 2012   [Refereed]
T. Akiho, T. Uemura, M. Harada, K.-i. Matsuda, and M. Yamamoto
Japanese Journal of Applied Physics   51(2) 02BM01 (5pp)   Feb 2012   [Refereed]
J.-P. Wuestenberg, R. Fetzer, M. Aeschlimann, M. Cinchetti, J. Minar, Juergen Braun, H. Ebert, T. Ishikawa, T. Uemura, and M. Yamamoto
Physical Review B   85(6) 064407 (10pp)   Feb 2012   [Refereed]
Non-local electrical detection of Hanle signals in Co2MnSi/Co50Fe50/n-GaAs Schottky tunnel junctions
T. Akiho, T. Uemura, H. Harada, K.-i., Matsuda, and M. Yamamoto
56th Annual Conf. on Magnetism & Magnetic Materials, Abstracts   471 (GB-12)   Oct 2011   [Refereed]
Almost identical oscillations in tunneling resistances as a function of barrier thickness for parallel and antiparallel configurations for fully epitaxial magnetic tunnel junctions with a MgO barrier
Y. Honda, S. Hirata, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
56th Annual Conf. on Magnetism & Magnetic Materials, Abstracts   426 (FP-01)   Oct 2011   [Refereed]
Fabrication of epitaxial magnetic tunnel junctions with a Co2MnSi thin film and a MgO barrier on Ge(001) substrates via a MgO interlayer
G.-f. Li, T.Taira, H.-x. Liu, K. -i. Matsuda, T. Uemura, and M. Yamamoto,
56th Annual Conf. on Magnetism & Magnetic Materials, Abstracts   251 (DE-04)   Oct 2011   [Refereed]
Spin-dependent transport properties of fully epitaxial magnetic tunnel junctions of CoFe/MgO/CoFe ultrathin layer/Co2MnSi
H.-x. Liu, T. Taira, Y. Honda, K. -i. Matsuda, T. Uemura, M. Yamamoto, Y. Miura, and M. Shirai
56th Annual Conf. on Magnetism & Magnetic Materials, Abstracts   260 (DE-1)   Oct 2011   [Refereed]
Effect of MgO Barrier Insertion on Spin-dependent Transport Properties of CoFe/n-GaA
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
2011 Int'l Conf. on Solid State Devices and Materials (SSDM2011), Extended Abstracts (USB memory)   1460-1461   Sep 2011   [Refereed]
Fabrication of fully epitaxial magnetic tunnel junctions with CoFe electrodes and a MgO barrier on Ge(001) substrates via a MgO interlayer
G.-f. Li, T. Taira, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2011 Int'l Conf. on Solid State Devices and Materials (SSDM2011), Extended Abstracts (USB memory)   1448-1449   Sep 2011   [Refereed]
Effect of GaAs Surface Structure on Tunneling Anisotropic Magnetoresistance in Epitaxial Co50Fe50/n-GaAs Junctions
T. Uemura, T. Akiho, M. Harada, K.-i. Matsuda, and M. Yamamoto
2011 Int'l Conf. on Solid State Devices and Materials (SSDM2011), Extended Abstracts (USB memory)   448-449   Sep 2011   [Refereed]
T. Uemura, T. Akiho, M. Harada, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   99(8) 082108 (3pp)   Aug 2011   [Refereed]
X. Kozina, G. H. Fecher, G. Stryganyuk, S. Ouardi, B. Balke, and C. Felser, G. Sch?nhense, E. Ikenaga, T. Sugiyama, N. Kawamura, M. Suzuki, T. Taira, T. Uemura, M. Yamamoto, H. Sukegawa, W. H. Wang, K. Inomata, and K. Kobayashi
Physical Review B   84(5) 054449 (8pp)   Aug 2011   [Refereed]
Electrical detection of spin injection from Co50Fe50 into GaAs at room temperature
T. Uemura, M. Harada, T. Akiho, K.-i. Matsuda, and M. Yamamoto
15th Int’l Conf. on Modulated Semiconductor Structures (MSS 15), Abstracts   Tu-P-87   Jul 2011   [Refereed]
Effect of chemical composition in Co2MnSi thin films facing an MgO barrier on magnetic states of Mn and Co atoms
T. Kadono, V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, A. Fujimori, D. Asakura, T. Koide, G.-f. Li, T. Ishikawa and M. Yamamoto
5th Int’l Workshop on Spin Currents, Abstracts   71   Jul 2011   [Refereed]
Oscillations in spin-dependent tunneling resistances as a function of MgO barrier thickness in epitaxial magnetic tunnel junctions with Heusler alloy Co2MnSi electrodes
Y. Honda, S. Hirata, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
5th Int’l Workshop on Spin Currents, Abstracts   136   Jul 2011   [Refereed]
Spin injection from Co50Fe50 into GaAs at room temperature
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
5th Int’l Workshop on Spin Currents, Abstracts   122   Jul 2011   [Refereed]
Spin-dependent tunneling characteristics of Heusler alloy/MgO heterostructures
M. Yamamoto, T. Uemura, and K.-i. Matsuda
5th Int’l Workshop on Spin Currents, Abstracts   41   Jul 2011   [Refereed][Invited]
G.-f. Li, T. Taira, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
Applied Physics Letters   98(26) 262505 (3pp)   Jun 2011   [Refereed]
T. Akiho, T. Uemura, M. Harada, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   98(23) 232109 (3pp)   Jun 2011   [Refereed]
Epitaxial growth of Heusler alloy Co2MnSi/MgO heterostructure on Ge(001) substrate
G.-f. Li, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Int’l Magnetics Conf. 2011 (INTERMAG 2011), Digests (USB memory)   HC-06   Apr 2011   [Refereed]
Electrical injection and detection of spin-polarized electrons in an epitaxial Co50Fe50/n-GaAs junction
T. Uemura, M. Harada. T. Akiho, K.-i. Matsuda, and M. Yamamoto
Int’l Magnetics Conf. 2011 (INTERMAG 2011), Digests (USB memory)   BP-08   Apr 2011   [Refereed]
Spin-dependent transport properties of Co2MnSi/MgO/n-GaAs tunnel junctions
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamot
Int’l Magnetics Conf. 2011 (INTERMAG 2011), Digests (USB memory)   BP-03   Apr 2011   [Refereed]
T. Uemura, M. Harada, T. Akiho, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   98(10) 102503 (3pp)   Mar 2011   [Refereed]
S. Imai, K.-i. Matsuda, T. Ishikawa, T. Uemura, and M. Yamamoto
Physica C-Superconductivity and Its Applications   470 S581-S583   Dec 2010   [Refereed]
Highly spin-polarized tunneling characteristics at room temperature in magnetic tunnel junctions with a half-metallic Heusler-alloy spin source and a MgO barrier
H.-x. Liu, T. Taira, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts (CD-ROM)   370 (ET-11)-371   Nov 2010   [Refereed]
Structural and magnetic properties at Co2MnSi/MgO(001) interfaces studied by x-ray magnetic circular dichroism and first-principles calculations
Y. Miura, M. Shirai, T. Saito, T. Katayama, T. Ishikawa, M. Yamamoto, D. Asakura and T. Koide
55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts (CD-ROM)   165 (CB-02)   Nov 2010   [Refereed]
Giant oscillations of spin-dependent tunneling resistances as a function of MgO barrier thickness in fully epitaxial magnetic tunnel junctions of Co2Cr0.6Fe0.4Al/MgO/Co2Cr0.6Fe0.4Al
M. Yamamoto, T. Marukame, T. Ishikawa, T. Taira, K.-i. Matsuda, and T. Uemura
55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts (CD-ROM)   165 (CB-01)   Nov 2010   [Refereed]
Giant tunnel magnetoresistance in half-metallic Co2MnSi-based fully epitaxial magnetic tunnel junctions
T. Taira, H.-x. Liu, S. Hirata, K.-i. Matsuda, T. Uemura, and M. Yamamoto
55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts (CD-ROM)   118 (BH-10)-119   Nov 2010   [Refereed]
Superconducting proximity effect of spin-triplet pairs in NbN/Co2Cr0.6Fe0.4Al/NbN junctions
K.-i. Matsuda, T. Uemura, and M. Yamamoto
55th Annual Conf. on Magnetism & Magnetic Materials, Abstracts (CD-ROM)   28 (AE-10)   Nov 2010   [Refereed]
D. Asakura, T. Koide, S. Yamamoto, K. Tsuchiya, T. Shioya, K. Amemiya, V. R. Singh, T. Kataoka, Y. Yamazaki, Y. Sakamoto, A. Fujimori, T. Taira, and M. Yamamoto
Physical Review B   82(18) 184419 (8pp)   Nov 2010   [Refereed]
Highly spin-polarized tunneling in Heusler-alloy-based magnetic tunnel junctions with a Co2MnSi upper electrode and a MgO barrier
H.-x. Liu, T. Taira, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2010 Int’l Conf. on Solid State Devices and Materials (SSDM 2010), Extended Abstracts (USB memory)   1122 (F-6-4)-1123   Sep 2010   [Refereed]
Electrical detection of a non-local signal in Co2MnSi/MgO/n-GaAs tunnel junctions
M. Harada, T. Uemura, T. Akiho, K.-i. Matsuda, and M. Yamamoto
6th Int’l Conf. on the Physics and Application of Spin Related Phenomena in Semiconductors (PASPS-VI), Abstracts   259-260   Aug 2010   [Refereed]
T. Uemura, M. Harada, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   96(25) 252106 (3pp)   Jun 2010   [Refereed]
T. Marukame, T. Ishikawa, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Physical Review B   81(13) 134432 (5pp)   Apr 2010   [Refereed]
T. Saito, T. Katayama, T. Ishikawa, M. Yamamoto, D. Asakura, T. Koide, M. Miura, and M. Shirai
Physical Review B   81(14) 144417 (6pp)   Apr 2010   [Refereed]
M. Yamamoto, T. Ishikawa, T. Taira, G.-f. Li, K.-i. Matsuda, and T. Uemura
Journal of Physics: Condensed Matter   22(16) 164212 (9pp)   Apr 2010   [Refereed]
S. Trudel, J. Hamrle, B. Hillebrands, T. Taira, and M. Yamamoto
Journal of Applied Physics   107(4) 043912 (7pp)   Feb 2010   [Refereed]
T. M. Nakatani, Y. K. Takahashi, T. Ishikawa, M. Yamamoto, and K. Hono
Journal of Magnetism and Magnetic Materials   322(3) 357-361   Feb 2010   [Refereed]
Effect of the Mn composition in Co2MnSi electrodes on tunnel magnetoresistance characteristics of Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
T. Ishikawa, H.-x. Liu, T. Taira, K.-i. Matsuda, T. Uemura, M. Yamamoto
11th Joint MMM/Intermag Conf., Digests (CD-ROM)   1888 (HH-04)   Jan 2010   [Refereed]
Strong bias-voltage dependence of tunneling anisotropic magneto-resistance in epitaxial ferromagnet/n-GaAs junctions
T. Uemura, M. Harada, K.-i. Matsuda, and M. Yamamoto
11th Joint MMM/Intermag Conf., Digests (CD-ROM)   1225 (EU-17)   Jan 2010   [Refereed]
Spin-dependent tunneling characteristics of Co2MnGe/MgO/Co2MnGe magnetic tunnel junctions
T. Taira, S. Hirata, T. Ishikawa, K.-i. Matsuda, T. Uemura, M. Yamamoto
11th Joint MMM/Intermag Conf., Digests (CD-ROM)   1192 (ET-03)   Jan 2010   [Refereed]
T. Ishikawa, H.-x. Liu, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Applied Physics Letters   95(23) 232512 (3pp)   Dec 2009   [Refereed]
K. Sawada, T. Uemura, M. Masuda, K.-i. Matsuda, and M. Yamamoto
IEEE Transactions on Magnetics   45(10) 3780-3783   Oct 2009   [Refereed]
T. Uemura, K. Sawada, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   95(1) 012502 (3pp)   Jun 2009   [Refereed]
T. Uemura, Y. Imai, M. Harada, K.-i. Matsuda, and M. Yamamoto
Applied Physics Letters   94(18) 182502 (3pp)   May 2009   [Refereed]
S. Ouardi, B. Balke, A. Gloskovskii, G. H Fecher, C. Felser, G. Schoenhense, T. Ishikawa, T. Uemura, M. Yamamoto, H. Sukegawa, W.-H. Wang, K. Inomata, Y. Yamashita, H. Yoshikawa, S. Ueda and K. Kobayashi
Journal of Physics D: Applied Physics   42(8) 084010 (7pp)   Apr 2009   [Refereed]
T. Taira, T. Ishikawa, N. Itabashi, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Journal of Physics D: Applied Physics   42(8) 084015 (9pp)   Apr 2009   [Refereed]
T. Ishikawa, N. Itabashi, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Journal of Applied Physics   105(7) 07B110 (6pp)   Apr 2009   [Refereed][Invited]
T. Ishikawa, N. Itabashi, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Applied Physics Letters   94(9) 092503 (3pp)   Mar 2009   [Refereed]
T. Taira, T. Ishikawa, N. Itabashi, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Applied Physics Letters   94(7) 072510 (3pp)   Feb 2009   [Refereed]
K.-i. Matsuda, Y. Akimoto, T. Uemura, and M. Yamamoto
Journal of Physics: Conference Series   150 0521551 (4pp)   2009   [Refereed]
T. Uemura and M. Yamamoto
Journal of Applied Physics   104(12) 123911 (5pp)   Dec 2008   [Refereed]
M. Masuda, T. Uemura, K.-i. Matsuda, and M. Yamamoto
IEEE Transactions on Magnetics   44(11) 3996-3998   Nov 2008   [Refereed]
G. H. Fecher, B. Balke, A. Gloskowskii, S. Ouardi, C. Felser, T. Ishikawa, M. Yamamoto, Y. Yamashita, H. Yoshikawa, S. Ueda, and K. Kobayashi
Journal of Applied Physics   92(19) 193513 (3pp)   May 2008   [Refereed]
T. Ishikawa, S. Hakamata, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Journal of Applied Physics   103(7) 07A919 (3pp)   Apr 2008   [Refereed]
T. Uemura, Y. Imai, S. Kawagishi, K.-i. Matsuda, and M. Yamamoto
Physica E: Low-dimensional Systems and Nanostructures   40(6) 2025-2027   Apr 2008   [Refereed]
T. Saito, T. Katayama, A. Emura, N. Sumida, N. Matsuoka, T. Ishikawa, T Uemura, M. Yamamoto, D. Asakura, and T. Koide
Journal of Applied Physics   103(7) 07D712 (3pp)   Apr 2008   [Refereed]
K.-i. Matsuda, Y. Akimoto, T. Uemura, and M. Yamamoto
Journal of Applied Physics   103(7) 07C711 (3pp)   Apr 2008   [Refereed]
S. Kawagishi, T. Uemura, Y. Imai, K.-i. Matsuda, and M. Yamamoto
Journal of Applied Physics   103(7) 07A703 (3pp)   Apr 2008   [Refereed]
A. Putra, A. Kakugo, H. Furukawa, J.P. Gong, Y. Osada, T. Uemura and M. Yamamoto
Polymer Journal   40(2) 137-142   2008   [Refereed]
T. Saito, T. Katayama, T. Ishikawa, M. Yamamoto, D. Asakura, and T. Koide
Applied Physics Letters   91(26) 262502 (3pp)   Dec 2007   [Refereed]
T. Marukame, T. Ishikawa, S. Hakamata, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Journal of the Magnetics Society of Japan   31(4) 344-350   Jul 2007   [Refereed]
T. Uemura, T. Yano, K.-i. Matsuda, and M. Yamamoto
Thin Solid Films   515(20-21) 8013-8016   Jul 2007   [Refereed]
K.-i. Matsuda, H. Niwa, Y. Akimoto, T. Uemura, and M. Yamamoto
IEEE Transactions on Applied Superconductivity   17(2) 3529-3532   Jun 2007   [Refereed]
T. Uemura, T. Marukame, K.-i. Matsuda, and M.Yamamoto
IEEE Transactions on Magnetics   43(6) 2791-2793   Jun 2007   [Refereed]
T. Marukame, T. Ishikawa, S. Hakamata, K.-i. Matsuda, T. Uemura, and M. Yamamoto
IEEE Transactions on Magnetics   43(6) 2782-2784   Jun 2007   [Refereed]
S. Hakamata, T. Ishikawa, T. Marukame, K.-i. Matsuda, T. Uemura, M. Arita, and M. Yamamoto
Journal of Applied Physics   101(9) 09J513 (3pp)   May 2007   [Refereed]
T. Marukame and M. Yamamoto
Journal of Applied Physics   101(8) 083906 (8pp)   Apr 2007   [Refereed]
T. Yano, T. Uemura, K.-i. Matsuda, and M.Yamamoto
Journal of Applied Physics   101(6) 063904 (4pp)   Mar 2007   [Refereed]
T. Marukame, H. Kijima, T. Ishikawa, K.-i. Matsuda, T. Uemura and M. Yamamoto
Journal of Magnetism and Magnetic Materials   310(2) 1946-1948   Mar 2007   [Refereed]
H. Kijima, T. Ishikawa, T. Marukame, K.-i. Matsuda, T. Uemura and M. Yamamoto
Journal of Magnetism and Magnetic Materials   310(2) 2006-2008   Mar 2007   [Refereed]
T. Ishikawa, T. Marukame, S. Hakamata, K.-i. Matsuda, T. Uemura and M. Yamamoto
Journal of Magnetism and Magnetic Materials   310(2) 1897-1899   Mar 2007   [Refereed]
T. Uemura, T. Yano, K.-i. Matsuda, and M. Yamamoto
Journal of Magnetism and Magnetic Materials   310(2) e696-e698   Mar 2007   [Refereed]
T. Marukame, T. Ishikawa, S. Hakamata, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Applied Physics Letters   90(1) 012508 (3pp)   Jan 2007   [Refereed]

Misc

 
川見豪, LIU H.‐x., 本田佑輔, 植村哲也, SHI Fengyuan, VOYLES Paul M., 山本眞史
第37回日本磁気学会学術講演概要集 2013年   53   Sep 2013
蝦名優也, 秋保貴史, LIU H.‐x., 山本眞史, 植村哲也
第37回日本磁気学会学術講演概要集 2013年   365   Sep 2013
秋保貴史, LIU Hong‐xi, 山本眞史, 植村哲也
第37回日本磁気学会学術講演概要集 2013年   366   Sep 2013
本田佑輔, LI G.‐f., LIU H.‐x., 有田正志, 松田健一, 植村哲也, 山本眞史, 齊藤敏明, 三浦良雄, 白井正文
第37回日本磁気学会学術講演概要集 2013年   52   Sep 2013
AKIHO TAKAFUMI, LIU HONG-XI, MATSUDA KEN-ICHI, YAMAMOTO MASAFUMI, UEMURA TETSUYA
2013年第74回応用物理学会秋季学術講演会講演予稿集 (CD-ROM)   10-041 (20a-C15-3)   Aug 2013
KAWAMI TAKESHI, LIU HONGXI, HONDA YUSUKE, UEMURA TETSUYA, SHI FENGYUAN, VOYLES PAUL M., YAMAMOTO MASAFUMI
2013年第74回応用物理学会秋季学術講演会講演予稿集 (CD-ROM)   10-018 (18a-C15-4)   Aug 2013
山本眞史, 植村哲也
2013年第74回応用物理学会秋季学術講演会講演予稿集 (CD-ROM)   077 (18p-C15-2)   Aug 2013   [Invited]
AKIHO TAKAFUMI, SHAN JINHAI, MATSUDA KEN-ICHI, YAMAMOTO MASAFUMI, UEMURA TETSUYA
2013年第60回応用物理学会春季学術講演会講演予稿集 (CD-ROM)   10-049 (28a-A7-5)   Mar 2013
Influence of interfacetermination layeron temperature dependenceof tunneling magnetoresistance of Co2MnSi/MgO-based magnetic tunnel junctions
H.-x. Liu, Y. Honda, K.-i. Matsuda, T. Uemura, M. Yamamoto, F.-y. Shi, and P. Voyles
2013年第60回応用物理学会春季学術講演会講演予稿集 (CD-ROM)   10-038 (30p-A7-7)   Mar 2013
藤澤潤, 松田健一, 山本眞史, 植村哲也
第48回応用物理学会北海道支部学術講演会講演予稿集   59   Jan 2013
鳥野剛史, 松田健一, 山本眞史, 植村哲也
第48回応用物理学会北海道支部学術講演会講演予稿集   17   Jan 2013
蝦名優也, 松田健一, 植村哲也, 山本眞史
第48回応用物理学会北海道支部学術講演会講演予稿集   58   Jan 2013
unnel barrier thickness dependence of Hanle signals in CoFe/MgO/SC (SC = Si or Ge) investigated through three-terminal configuration
T. Uemura, G.-f. Li, J. Fujisawa, K.-i. Matsuda, and M. Yamamoto
The 17th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-17), Abstracts   25   Dec 2012
Spin injection into GaAs from highly spin-polarized ferromagnetic electrode
T. Uemura, T. Akiho, K.-i. Matsuda, and M. Yamamoto
The 17th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-17), Abstracts   19   Dec 2012   [Invited]
LIU HONG-XI, HONDA YUSUKE, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
第36回日本磁気学会学術講演概要集 2012年   28   Oct 2012
LI GUI-FANG, MIKI MUTSUMI, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2012年秋季第73回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-052 (13p-H6-6)   Aug 2012
LIU HONG-XI, HONDA YUSUKE, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2012年秋季第73回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-009 (11p-H6-9)   Aug 2012
松田健一, 篠木崇帆, 植村哲也, 山本眞史
2012年秋季第73回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-020 (12a-H6-2)   Aug 2012
SHAN Jinhai, 秋保貴史, 松田健一, 山本眞史, 植村哲也
2012年秋季第73回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-100 (14a-H6-10)   Aug 2012
LI GUI-FANG, TAIRA TOMOYUKI, LIU HONG-XI, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2012年春季第59回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-005 (16a-B4-5)   Feb 2012
LIU HONG-XI, HONDA YUSUKE, TAIRA TOMOYUKI, MATSUDA KEN-ICHI, UEMURA TETSUYA, MIURA YOSHIO, SHIRAI MASAFUMI, YAMAMOTO MASAFUMI
2012年春季第59回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-006 (16a-B4-6)   Feb 2012
秋保貴史, 植村哲也, 松田健一, 山本眞史
2012年春季第59回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-059 (17a-B4-12)   Feb 2012
植村哲也, 藤澤潤, 松田健一, 山本眞史
2012年春季第59回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-056 (17a-B4-9)   Feb 2012
LI GUI-FANG, TAIRA TOMOYUKI, LIU HONG-XI, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
第47回応用物理学会北海道支部学術講演会講演予稿集   77   Jan 2012
LIU HONG-XI, HONDA YUSUKE, TAIRA TOMOYUKI, MATSUDA KEN-ICHI, UEMURA TETSUYA, MIURA YOSHIO, SHIRAI MASAFUMI, YAMAMOTO MASAFUMI
第47回応用物理学会北海道支部学術講演会講演予稿集   72   Jan 2012
秋保貴史, 原田雅亘, 植村哲也, 松田健一, 山本眞史
第47回応用物理学会北海道支部学術講演会講演予稿集   78   Jan 2012
篠木崇帆, 松田健一, 平智幸, 植村哲也, 山本眞史
第47回応用物理学会北海道支部学術講演会講演予稿集   73   Jan 2012
Spin injection from Co2MnSi into GaAs and detection of dynamic nuclear polarization
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
The 16th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-16), Abstracts   121-122   Nov 2011
植村哲也, 秋保貴史, 原田雅亘, 松田健一, 山本眞史
第35回日本磁気学会学術講演概要集 2011年   338   Sep 2011
Epitaxial growth of Heusler alloy Co2MnSi thin films on Ge(001) substrates via a MgO interlayer
G.-f. Li, T. Taira, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
第35回日本磁気学会学術講演概要集 2011年   4   Sep 2011
Oscillations in tunneling resistances commonly observed for the parallel and antiparallel magnetization orientations as a function of barrier thickness in epitaxial Co2MnSi/MgO/Co2MnSi MTJs
Y. Honda, S. Hirata, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2011年秋季第72回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-058 (2a-S-5)   Aug 2011
Structural and magnetic properties of epitaxially grown Heusler alloyCo2MnSi/MgO heterostructures on Ge(001) substrates
G.-f. Li, T. Taira, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
2011年秋季第72回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-003 (31a-ZS-3)   Aug 2011
秋保貴史, 植村哲也, 原田雅亘, 松田健一, 山本眞史
2011年秋季第72回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-027 (31a-ZS-4)   Aug 2011
植村哲也, 秋保貴史, 原田雅亘, 松田健一, 山本眞史
2011年秋季第72回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-028 (31a-ZS-5)   Aug 2011
LI GUI-FANG, TAIRA TOMOYUKI, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2011年春季第58回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-007 (25a-KM-7)   Mar 2011
植村哲也, 原田雅亘, 秋保貴史, 松田健一, 山本眞史
2011年春季第58回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-042 (24a-KQ-11)   Mar 2011
本田佑輔, 平田進之佑, LI G.‐f., LIU H.‐x., 松田健一, 植村哲也, 山本眞史
2011年春季第58回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-090 (26p-KR-7)   Mar 2011
平田進之佑, LI Gui‐Fang, 本田佑輔, 松田健一, 植村哲也, 山本眞史
第46回応用物理学会北海道支部学術講演会講演予稿集   43   Jan 2011
原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
第46回応用物理学会北海道支部学術講演会講演予稿集   44   Jan 2011
植村哲也, 原田雅亘, 秋保貴史, 松田健一, 山本眞史
第34回日本磁気学会学術講演会講演概要集   233   Sep 2010
High tunnel magnetoresistance in fully epitaxial Co50Fe50-buffered Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
H.-x. Liu, T. Taira, Y. Honda, K. -i. Matsuda, T. Uemura and M. Yamamoto
第34回日本磁気学会学術講演会講演概要集   220   Sep 2010
Giant oscillations in spin-dependent tunneling resistances as a function of barrier thickness in fully epitaxial magnetic tunnel junctions with a MgO barrier
M. Yamamoto, T. Marukame, T. Ishikawa, T. Taira, K.-i. Matsuda and T. Uemura
2010年秋季第71回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-064 (14p-J-4)   Aug 2010
LIU HONG-XI, TAIRA TOMOYUKI, HONDA YUSUKE, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2010年秋季第71回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-002 (14a-F-2)   Aug 2010
原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
2010年秋季第71回応用物理学会学術講演会講演予稿集 (CD-ROM)   10-056 (17p-A-1)   Aug 2010
松田健一, 植村哲也, 山本眞史
2010年秋季第71回応用物理学会学術講演会講演予稿集 (CD-ROM)   11-017 (14a-P3-17)   Aug 2010
G.-f. Li, T. Taira, S. Hirata, Y. Honda, K.?i. Matsuda, T. Uemura, and M. Yamamoto
2010年春期第146回日本金属学会講演会講演概要   158   Mar 2010
平田進之佑, 平智幸, 松田健一, 植村哲也, 山本眞史
2010年春期第146回日本金属学会講演会講演概要   157   Mar 2010
植村哲也, 石川貴之, 原田雅亘, 平智幸, 松田健一, 山本眞史
2010年春期第146回日本金属学会講演会講演概要   156   Mar 2010
Defects induced in nonstoichiometric Co2MnGe thin films investigated through saturation magnetization
G.-f. Li, T. Taira, S. Hirata, Y. Honda, K. -i. Matsuda, T. Uemura, and M. Yamamoto
2010年春季第57回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-007 (17a-ZH-7)   Mar 2010
LIU HONG-XI, ISHIKAWA TAKAYUKI, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2010年春季第57回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-108 (19a-ZJ-13)   Mar 2010
平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
2010年春季第57回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-008 (17a-ZH-8)   Mar 2010
原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
2010年春季第57回応用物理学関係連合講演会講演予稿集 (CD-ROM)   10-114 (19p-ZJ-19)   Mar 2010
Effect of nonstoichiometry on saturation magnetization of Heusler alloy Co2MnGe thin films
G.-f. Li, T. Taira, S. Hirata, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
第45回応用物理学会北海道支部学術講演会講演予稿集   88   Jan 2010
板橋直樹, 平智幸, 松田健一, 植村哲也, 山本眞史
第45回応用物理学会北海道支部学術講演会講演予稿集   84   Jan 2010
原田雅亘, 秋保貴史, 植村哲也, 松田健一, 山本眞史
第45回応用物理学会北海道支部学術講演会講演予稿集   86   Jan 2010
今井悟嗣, 石川貴之, 松田健一, 植村哲也, 山本眞史
第45回応用物理学会北海道支部学術講演会講演予稿集   87   Jan 2010
平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
第45回応用物理学会北海道支部学術講演会講演予稿集   85   Jan 2010
小出常晴, 朝倉大輔, 片岡隆史, 山崎陽, 坂本勇太, 藤森淳, 雨宮健太, 山本樹, 土屋公央, 塩屋達朗, 平智幸, 石川貴之, 山本眞史
第27回 PF (フォトンファクトリー) シンポジウム要旨集   73   2010
石川貴之, LIU H.‐X., 平智幸, 松田健一, 植村哲也, 山本眞史
第33回日本磁気学会学術講演会講演概要集   22   Sep 2009
平田進之佑, 平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
第33回日本磁気学会学術講演会講演概要集   21   Sep 2009
LIU HONG-XI, ISHIKAWA TAKAYUKI, TAIRA TOMOYUKI, MATSUDA KEN-ICHI, UEMURA TETSUYA, YAMAMOTO MASAFUMI
2009年秋季第70回応用物理学会学術講演会講演予稿集 (CD-ROM)   (2) 676   Sep 2009
原田雅亘, 植村哲也, 松田健一, 山本眞史
2009年秋季第70回応用物理学会学術講演会講演予稿集 (CD-ROM)   (2) 704   Sep 2009
平智幸, 平田進之佑, 石川貴之, 松田健一, 植村哲也, 山本眞史
2009年秋季第70回応用物理学会学術講演会講演予稿集 (CD-ROM)   (2) 676   Sep 2009
松田健一, 今井悟嗣, 石川貴之, 植村哲也, 山本眞史
2009年秋季第70回応用物理学会学術講演会講演予稿集 (CD-ROM)   (2) 677   Sep 2009
小出常晴, 朝倉大輔, 片岡隆史, 山崎陽, 坂本勇太, 藤森淳, 平智幸, 石川貴之, 山本眞史
第64回日本物理学会学術講演会講演概要集   (2) 318   Aug 2009
今井洋介, 原田雅亘, 植村哲也, 松田健一, 山本眞史
2009年春季第56回応用物理学関係連合講演会講演予稿集   (2) 791   Mar 2009
澤田圭佑, 植村哲也, 増田昌洋, 松田健一, 山本眞史
2009年春季第56回応用物理学関係連合講演会講演予稿集   (2) 779   Mar 2009
板橋直樹, 石川貴之, 米村和希, 松田健一, 植村哲也, 山本眞史
第44回応用物理学会北海道支部学術講演会講演予稿集   40   Jan 2009
今井悟嗣, 石川貴之, 松田健一, 植村哲也, 山本眞史
第44回応用物理学会北海道支部学術講演会講演予稿集   47   Jan 2009
今井洋介, 原田雅亘, 植村哲也, 松田健一, 山本眞史
第44回応用物理学会北海道支部学術講演会講演予稿集   45   Jan 2009
澤田圭佑, 増田昌洋, 植村哲也, 松田健一, 山本眞史
第44回応用物理学会北海道支部学術講演会講演予稿集   46   Jan 2009
米村和希, 板橋直樹, 松田健一, 植村哲也, 山本眞史
第44回応用物理学会北海道支部学術講演会講演予稿集   39   Jan 2009
増田昌洋, 澤田圭佑, 植村哲也, 松田健一, 山本眞史
第44回応用物理学会北海道支部学術講演会講演予稿集   44   Jan 2009
朝倉大輔, 小出常晴, 片岡隆史, 坂本勇太, 山崎陽, 藤森淳, 平智幸, 石川貴之, 山本眞史
第22回日本放射光学会年会・放射光科学合同シンポジウム予稿集   57   2009
朝倉大輔, 小出常晴, 片岡隆史, 坂本勇太, 山崎陽, SINGH Vijay Raj, 藤森淳, 平智幸, 山本眞史
第26回 PF (フォトンファクトリー) シンポジウム要旨集   196   2009
中谷友也, 高橋有紀子, 石川貴之, 山本眞史, 宝野和博
2008年秋期日本金属学会講演大会講演概要   366   Sep 2008
石川貴之, 板橋直樹, 平智幸, 松田健一, 植村哲也, 山本眞史
第32回日本磁気学会学術講演会講演概要集   170   Sep 2008
中谷友也, 高橋有紀子, 石川貴之, 山本眞史, 宝野和博
第32回日本磁気学会学術講演会講演概要集   280   Sep 2008
平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
第32回日本磁気学会学術講演会講演概要集   172   Sep 2008
板橋直樹, 石川貴之, 松田健一, 植村哲也, 山本眞史
第32回日本磁気学会学術講演会講演概要集   285   Sep 2008
平智幸, 石川貴之, 松田健一, 植村哲也, 山本眞史
2008年秋季第69回応用物理学会学術講演会講演予稿集   (2) 666   Sep 2008
松田健一, 秋元陽介, 植村哲也, 山本眞史
2008年秋季第69回応用物理学会学術講演会講演予稿集   (1) 258   Sep 2008
石川貴之, 板橋直樹, 平智幸, 松田健一, 植村哲也, 山本眞史
2008年秋季第69回応用物理学会学術講演会講演予稿集   (2) 655   Sep 2008
米村和希, 石川貴之, 松田健一, 植村哲也, 山本眞史
2008年秋季第69回応用物理学会学術講演会講演予稿集   (2) 654   Sep 2008
朝倉大輔, 小出常晴, 片岡隆史, 坂本勇太, 山崎陽, 藤森淳, 平智幸, 石川貴之, 山本眞史
第63回日本物理学会講演概要集   (2) 385   Aug 2008
板橋直樹, 石川貴之, 松田健一, 植村哲也, 山本眞史
2008年春季第55回応用物理学関係連合講演会講演予稿集   (2) 786   Mar 2008
石川貴之, 板橋直樹, 松田健一, 植村哲也, 山本眞史
2008年春季第55回応用物理学関係連合講演会講演予稿集   (2) 786   Mar 2008
PUTRA ANANDA, KAKUGO AKIRA, FURUKAWA HIDEMITSU, GONG JIAN PING, OSADA YOSHIHITO, UEMURA TETSUYA, YAMAMOTO MASAFUMI
第42回高分子学会北海道支部研究発表会講演要旨集   51   Jan 2008
板橋直樹, 石川貴之, 松田健一, 植村哲也, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   51   Jan 2008
袴田真矢, 石川貴之, 松田健一, 植村哲也, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   49   Jan 2008
秋元陽介, 松田健一, 植村哲也, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   4   Jan 2008
平智幸, 石川貴之, 袴田真矢, 松田健一, 植村哲也, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   50   Jan 2008
今井洋介, 河岸沙織, 植村哲也, 松田健一, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   54   Jan 2008
米村和希, 石川貴之, 松田健一, 植村哲也, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   52   Jan 2008
増田昌洋, 植村哲也, 松田健一, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   53   Jan 2008
河岸沙織, 今井洋介, 植村哲也, 松田健一, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   47   Jan 2008
石川貴之, 袴田真矢, 松田健一, 植村哲也, 山本眞史
第43回応用物理学会北海道支部学術講演会講演予稿集   48   Jan 2008
袴田真矢, 石川貴之, 松田健一, 植村哲也, 山本眞史
第31回日本応用磁気学会学術講演会講演概要集   36   Sep 2007

Conference Activities & Talks

 
Effect of CoFe insertion on spin injection properties of Co2MnSi/CoFe/n-GaAs junctions
Y. Ebina, T. Akiho, H. Liu, M. Yamamoto, and T. Uemura
58th Annual Conf. on Magnetism and Magnetic Materials   Nov 2013   
Spin and symmetry properties of the buried Co2MnSi/MgO interface
R. Fetzer, Y. Ohdaira, H. Naganuma, M. Oogane, Y. Ando, T. Taira, T. Uemura, M. Yamamoto, M. Aeschlimann and M. Cinchetti
58th Annual Conf. on Magnetism and Magnetic Materials   Nov 2013   
Non-symmetric Interfaces in Symmetric Mn-Deficient Co2MnSi/MgO/Co2MnSi Magnetic Tunnel Junctions Investigated by High Resolution Scanning Transmission Electron Microscopy
F. Shi, H. Liu, M. Yamamoto and P. Voyles
58th Annual Conf. on Magnetism and Magnetic Materials   Nov 2013   
Spin-dependent transport properties of strained InGaAs channel investigated through all electrical spin
T. Akiho, M. Yamamoto, and T. Uemura
58th Annual Conf. on Magnetism and Magnetic Materials   Nov 2013   
Giant tunnel magnetoresistance in fully epitaxial Co2(Mn,Fe)Si/MgO/Co2(Mn,Fe)Si magnetic tunnel junctions
T. Kawami, H. Liu, Y. Honda, K. M. Ayele, T. Uemura, F. Shi, P. M. Voyles and M. Yamamoto
58th Annual Conf. on Magnetism and Magnetic Materials   Nov 2013   
Dynamic nuclear polarization observed in Co2MnSi/CoFe/n-GaAs heterojunctions
T. Akiho, H.-x. Liu, M. Yamamoto, and T. Uemura
The 37th Annual Conference on Magnetics in Japan 2013   Sep 2013   
Effect of CoFe insertion on spin injection properties in Co2MnSi/CoFe/n-GaAs junctions
Y. Ebina, T. Akiho, H.-x. Liu, M. Yamamoto, and T. Uemura
The 37th Annual Conference on Magnetics in Japan 2013   Sep 2013   
Giant tunneling magnetoresistance in fully epitaxial Co2(Mn, Fe)Si/MgO/Co2(Mn, Fe)Si magnetic tunnel junctions
T. Kawami, H.-x. Liu, Y. Honda, T. Uemura, F.-y. Shi, P. M. Voyles, and M. Yamamoto
The 37th Annual Conference on Magnetics in Japan 2013   Sep 2013   
Effect of nonstoichiometry on the half-metallicity of Co2MnSi thin films with various Mn compositions
Y. Honda, G.-f. Li, H.-x. Liu, M. Arita, K.-i. Matsuda, T. Uemura, M. Yamamoto, T. Saito, Y. Miura, and M. Shirai
The 37th Annual Conference on Magnetics in Japan 2013   Sep 2013   
Highly-efficient dynamic nuclear polarization in GaAs using a Heusler-alloy spin source
T. Akiho, H.-x. Liu, K.-i. Matsuda, M. Yamamoto, and T. Uemura
The 74th Autumn Meeting 2013, The Japan Society of Applied Physics   Sep 2013   
Giant tunneling magnetoresistance in fully epitaxial Co2(Mn, Fe)Si/MgO/ Co2(Mn, Fe)Si magnetic tunnel junctions
T. Kawami, H.-x. Liu, Y. Honda, T. Uemura, F.-y. Shi, P. M. Voyles, and M. Yamamoto
The 74th Autumn Meeting 2013, The Japan Society of Applied Physics   Sep 2013   
Half-metallic Heusler alloy thin films for spintronic devices [Invited]
M. Yamamoto and T. Uemura
The 74th Autumn Meeting 2013, The Japan Society of Applied Physics   Sep 2013   
High Resolution Scanning Transmission Electron Microscopy Shows MnMn/O Termination at the Co2MnSi/MgO Interface in a Magnetic Tunnel Junction
F. Shi, H.-x. Liu, M. Yamamoto, and P. Voyles
2013 Material Research Society (MRS) Spring Meeting   Apr 2013   
Annealing temperature dependence of spin signals observed inCo2MnSi/CoFe/n-GaAs through four-terminal non-local geometry
T. Akiho, J. Shan, K.-i. Matsuda, M. Yamamoto, and T. Uemura
The 60th Japan Society of Applied Physic Spring Meeting   Mar 2013   
Influence of interfacetermination layeron temperature dependenceof tunneling magnetoresistance of Co2MnSi/MgO-based magnetic tunnel junctions
H.-x. Liu, Y. Honda, K.-i. Matsuda, T. Uemura, M. Yamamoto, F.-y. Shi, and P. Voyles
The 60th Japan Society of Applied Physic Spring Meeting   Mar 2013   
MgO thickness dependence of Hanle signal in Co2MnSi/CoFe/MgO/Si
J. Fujisawa, K.-i. Matsuda, M. Yamamoto, and T. Uemura
48th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2013   
Superconducting proximity effect in Nb/Cu50Ni50 bilayers and ther transport properties
Y. Ebina, K.-i. Matsuda, T. Uemura, and M. Yamamoto
48th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2013   
Spin injectioin from ferromagnet into InGaAs thfough GaAs tunnel barrier
T. Torino, K.-i. Matsuda, M. Yamamoto, and T. Uemura
48th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2013   
MnMn/O and CoCo/O terminations at Co2MnSi/MgO interface in a magnetic tunnel junction investigated by high resolution scanning transmission electron microscopy
F. Shi, H.-x. Liu, M. Yamamoto, and P. Voyles
12th Joint MMM/Intermag Conference   Jan 2013   
Influence of interfacial structural properties on tunnel magnetoresistance in epitaxial magnetic tunnel junctions with Co2MnSi electrode and MgO barrier
H.-x. Liu, Y. Honda, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
12th Joint MMM/Intermag Conference   Jan 2013   
Transient effects on oblique Hanle signals observed in ferromagnet/semiconductor heterojunctions with non-local four-terminal configuration
T. Akiho, J.-h. Shan, K.-i. Matsuda, M. Yamamoto, and T. Uemura
12th Joint MMM/Intermag Conference   Jan 2013   
unnel barrier thickness dependence of Hanle signals in CoFe/MgO/SC (SC = Si or Ge) investigated through three-terminal configuration
T. Uemura, G.-f. Li, J. Fujisawa, K.-i. Matsuda, and M. Yamamoto
The 17th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-17)   Dec 2012   
Spin injection into GaAs from highly spin-polarized ferromagnetic electrode [Invited]
T. Uemura, T. Akiho, K.-i. Matsuda, and M. Yamamoto
The 17th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-17)   Dec 2012   
Electrical spin injection and electrical detection of dynamic nuclear polarization in ferromagnet/semiconductor heterojunctions [Invited]
T. Akiho, J.-h. Shan, K.-i. Matsuda, M. Yamamoto, and T. Uemura
Int'l Workshop on Spintronic Nano Materials 2012   Nov 2012   
Enhanced coherent tunneling contribution in epitaxial magnetic tunnel junctions with a Co2MnSi electrode and a MgO barrier due to improved interfacial structural properties
H.-x. Liu, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 2nd Int'l Conference of Asia Union of Magnetics Societies (ICAUMS 2012)   Oct 2012   
非局所四端子配置を用いたCo2MnSi/CoFe/n-GaAs ショットキートンネル接合におけるoblique Hanle 信号の過渡特性
S. Shan, T. Akiho, K.-i. Matsuda, T. Uemura, and M. Yamamot
The 73th Autumn Meeting 2012, The Japan Society of Applied Physics   Sep 2012   
MgO tunnel barrier thickness dependence of three-terminal Hanle-type signals in CoFe/MgO/n-Ge tunnel junctions
G.-f. Li, M. Miki, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 73th Autumn Meeting 2012, The Japan Society of Applied Physics   Sep 2012   
Co2MnSi/MgO/NbN接合を用いたホイスラー合金Co2MnSiのスピン偏極率評価
K.-i. Matsuda, T. Shinoki, T. Uemura, and M. Yamamot
The 73th Autumn Meeting 2012, The Japan Society of Applied Physics   Sep 2012   
Temperature dependence of spin-dependent tunneling resistances of fully epitaxial Co2MnSi-based magnetic tunnel junctions
H.-x. Liu, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 73th Autumn Meeting 2012, The Japan Society of Applied Physics   Sep 2012   
Tunnel barrier thickness dependence of Hanle-type signals in CoFe/MgO/n-Ge tunnel junctions investigated through three-terminal configuration
G.-f. Li, M. Miki, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 17th Int’l Conf. on Molecular Beam Epitaxy (MBE 2012)   Sep 2012   
Tunnel barrier thickness dependence of Hanle-type signals in CoFe/MgO/n-Si and CoFe/MgO/n-Ge junctions investigated through three-terminal configuration
T. Uemura, G.-f. Li, J. Fujisawa, K. Kondo, K.-i. Matsuda, and M. Yamamoto
2012 Int'l Conference on Solid State Devices and Materials (SSDM 2012)   Sep 2012   
Transient oblique Hanle signals observed in Co2MnSi/CoFe/n-GaAs with non-local four-terminal configuration
J.-h. Shan, T. Akiho, K.-i. Matsuda, M. Yamamoto, and T. Uemura
2012 Int'l Conference on Solid State Devices and Materials (SSDM 2012)   Sep 2012   
Temperature dependence of spin-dependent tunneling resistances of MgO-buffered Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
Y. Honda, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2012 Int'l Conference on Solid State Devices and Materials (SSDM 2012)   Sep 2012   
Spin-polarization measurements for Co2MnSi using Co2MnSi/MgO/NbN epitaxial tunnel junctions
Ken-ichi Matsuda, Takaho Shinoki, Tomoyuki Taira, Tetsuya Uemura, and Masafumi Yamamoto
The 19th Int’l Conf. on Magnetism (ICM2012)   Jul 2012   
Electrical spin injection from Co2MnSi Heusler alloy into GaAs and electrical detection of dynamic nuclear polarization
T. Akiho, T. Uemura, K.-i. Matsuda, and M. Yamamoto
Int’l Magnetics Conf. 2012 (INTERMAG 2012)   May 2012   
MgO thickness dependence of spin accumulation signal in Co50Fe50/MgO/Si
T. Uemura, J. Fujisawa, K.-i. Matsuda, and M. Yamamoto
Int’l Magnetics Conf. 2012 (INTERMAG 2012)   May 2012   
Temperature dependence of spin-dependent tunneling conductances of fully epitaxial Co2MnSi-based magnetic tunnel junctions
H.-x. Liu, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Int’l Magnetics Conf. 2012 (INTERMAG 2012)   May 2012   
Possibility of Superconducting Proximity Effect of Equal-spin Triplet Components in NbN/Co2Cr0.6Fe0.4Al/NbN Junctions
Ken-ichi Matsuda, Tetsuya Uemura, and Masafumi Yamamoto
Int’l Conf. on Topological Quantum Phenomena (TQP2012)   May 2012   
MgO thickness dependence of spin accumulation signal in CoFe/MgO/Si
Tetsuya Uemura, Jun Fijisawa, Ken-ichi Matsuda, Masafumi Yamamoto
The 59th Spring Meeting2012, The Japan Society of Applied Physic   Mar 2012   
Electrical spin injection from Co2MnSi Heusler alloy into GaAsand electrical detection of dynamic nuclear polarization
Takafumi Akiho, Tetsuya Uemura, Ken-ichi Matsuda, Masafumi Yamamoto
The 59th Spring Meeting2012, The Japan Society of Applied Physic   Mar 2012   
Fabrication of fully epitaxial magnetic tunnel junctions with a Heusler alloy Co2MnSi thin film and a MgO barrier on Ge(001) substrates”
G.-f. Li, T. Taira, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 59th Spring Meeting2012, The Japan Society of Applied Physic   Mar 2012   
Spin-dependent transport characteristics of epitaxial magnetic tunnel junctions of CoFe/MgO/CoFe ultrathin layer/Co2MnSi
H.-x. Liu, Y. Honda, T. Taira, K.-i. Matsuda, T. Uemura, Y. Miura, M. Shirai, and M. Yamamoto
The 59th Spring Meeting2012, The Japan Society of Applied Physic   Mar 2012   
Detection of nuclear magnetic filed and spin transport in Co2MnSi/CoFe/n-GaAs structures
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
47th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2012   
Tunnel magnetoresistance in fully epitaxial CoFe/MgO/CoFe magnetic tunnel junctions on Ge(001) substrates via a MgO interlayer
G.-f. Li, T. Taira, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
47th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2012   
Spin-polarization measurement for Heusler alloy Co2MnSi using Co2MnSi/MgO/NbN heterostructures
T. Shinoki, K.-i. Matsuda, T. Taira, T. Uemura, and M.Yamamoto
47th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2012   
Spin-polarized transport in fully epitaxial CoFe/MgO/CoFe ultrathin layer/Co2MnSi magnetic tunnel junction
H.-x. Liu, Y. Honda, T. Taira, K.-i. Matsuda, T. Uemura, Y. Miura, M. Shirai, and M.Yamamoto
47th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Jan 2012   
Spin transport properties of fully epitaxial magnetic tunnel junctions of CoFe/MgO/CoFe ultrathin layer/Co2MnSi
H.-x. Liu, T. Taira, Y. Honda, K. -i. Matsuda, T. Uemura, M. Yamamoto, Y. Miura, and M. Shirai
5th Int’l Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation   Jan 2012   
Tunnel magnetoresistance in fully epitaxial CoFe/MgO/CoFe magnetic tunnel junctions on Ge(001) substrates via a MgO interlayer
G.-f. Li, T. Taira, H.-x. Liu, K. ?i. Matsuda, T. Uemura, and M. Yamamoto
5th Int’l Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation   Jan 2012   
Spin injection from Co2MnSi into GaAs and detection of dynamic nuclear polarization
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
The 16th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-16)   Nov 2011   
Non-local electrical detection of Hanle signals in Co2MnSi/Co50Fe50/n-GaAs Schottky tunnel junctions
T. Akiho, T. Uemura, H. Harada, K.-i., Matsuda, and M. Yamamoto
56th Annual Conf. on Magnetism & Magnetic Materials   Oct 2011   
Almost identical oscillations in tunneling resistances as a function of barrier thickness for parallel and antiparallel configurations for fully epitaxial magnetic tunnel junctions with a MgO barrier
Y. Honda, S. Hirata, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
56th Annual Conf. on Magnetism & Magnetic Materials   Oct 2011   
Fabrication of epitaxial magnetic tunnel junctions with a Co2MnSi thin film and a MgO barrier on Ge(001) substrates via a MgO interlayer
G.-f. Li, T.Taira, H.-x. Liu, K. -i. Matsuda, T. Uemura, and M. Yamamoto,
56th Annual Conf. on Magnetism & Magnetic Materials   Oct 2011   
Spin-dependent transport properties of fully epitaxial magnetic tunnel junctions of CoFe/MgO/CoFe ultrathin layer/Co2MnSi
H.-x. Liu, T. Taira, Y. Honda, K. -i. Matsuda, T. Uemura, M. Yamamoto, Y. Miura, and M. Shirai
56th Annual Conf. on Magnetism & Magnetic Materials   Oct 2011   
Electrical detection of spin injection into GaAs from a Co50Fe50 electrode
T. Uemura, T. Akiho, M. Harada, K.-i. Matsuda, and M. Yamamot
The 35th Annual Conference on Magnetics in Japan 201   Sep 2011   
Epitaxial growth of Heusler alloy Co2MnSi thin films on Ge(001) substrates via a MgO interlayer
G.-f. Li, T. Taira, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
The 35th Annual Conference on Magnetics in Japan 201   Sep 2011   
Effect of MgO Barrier Insertion on Spin-dependent Transport Properties of CoFe/n-GaA
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
2011 Int'l Conf. on Solid State Devices and Materials (SSDM2011)   Sep 2011   
Fabrication of fully epitaxial magnetic tunnel junctions with CoFe electrodes and a MgO barrier on Ge(001) substrates via a MgO interlayer
G.-f. Li, T. Taira, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2011 Int'l Conf. on Solid State Devices and Materials (SSDM2011)   Sep 2011   
Effect of GaAs Surface Structure on Tunneling Anisotropic Magnetoresistance in Epitaxial Co50Fe50/n-GaAs Junctions
T. Uemura, T. Akiho, M. Harada, K.-i. Matsuda, and M. Yamamoto
2011 Int'l Conf. on Solid State Devices and Materials (SSDM2011)   Sep 2011   
Oscillations in tunneling resistances commonly observed for the parallel and antiparallel magnetization orientations as a function of barrier thickness in epitaxial Co2MnSi/MgO/Co2MnSi MTJs
Y. Honda, S. Hirata, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 72th Autumn Meeting2011, The Japan Society of Applied Physics   Aug 2011   
Spin injection from Co50Fe50 into GaAs at room temperatur
Tetsuya Uemura, Takafumi Akiho, Masanobu Harada, Ken-ichi Matsuda, Masafumi Yamamoto
The 72th Autumn Meeting2011, The Japan Society of Applied Physics   Aug 2011   
Influence of MgO insertion on spin dependent transport properties ofCoFe/n-GaAs hetero junctions
秋保貴史,植村哲也,原田雅亘,松田健一,山本眞史
The 72th Autumn Meeting2011, The Japan Society of Applied Physics   Aug 2011   
Structural and magnetic properties of epitaxially grown Heusler alloyCo2MnSi/MgO heterostructures on Ge(001) substrates
G.-f. Li, T. Taira, K.-i. Matsuda, M. Arita, T. Uemura, and M. Yamamoto
The 72th Autumn Meeting2011, The Japan Society of Applied Physics   Aug 2011   
Electrical detection of spin injection from Co50Fe50 into GaAs at room temperature
T. Uemura, M. Harada, T. Akiho, K.-i. Matsuda, and M. Yamamoto
15th Int’l Conf. on Modulated Semiconductor Structures (MSS 15)   Jul 2011   
Effect of chemical composition in Co2MnSi thin films facing an MgO barrier on magnetic states of Mn and Co atoms
T. Kadono, V. R. Singh, V. K. Verma, K. Ishigami, G. Shibata, A. Fujimori, D. Asakura, T. Koide, G.-f. Li, T. Ishikawa and M. Yamamoto
5th Int’l Workshop on Spin Currents   Jul 2011   
Oscillations in spin-dependent tunneling resistances as a function of MgO barrier thickness in epitaxial magnetic tunnel junctions with Heusler alloy Co2MnSi electrodes
Y. Honda, S. Hirata, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
5th Int’l Workshop on Spin Currents   Jul 2011   
Spin injection from Co50Fe50 into GaAs at room temperature
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamoto
5th Int’l Workshop on Spin Currents   Jul 2011   
Spin-dependent tunneling characteristics of Heusler alloy/MgO heterostructures [Invited]
M. Yamamoto, T. Uemura, and K.-i. Matsuda
5th Int’l Workshop on Spin Currents   Jul 2011   
Epitaxial growth of Heusler alloy Co2MnSi/MgO heterostructure on Ge(001) substrate
G.-f. Li, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
Int’l Magnetics Conf. 2011 (INTERMAG 2011)   Apr 2011   
Electrical injection and detection of spin-polarized electrons in an epitaxial Co50Fe50/n-GaAs junction
T. Uemura, M. Harada. T. Akiho, K.-i. Matsuda, and M. Yamamoto
Int’l Magnetics Conf. 2011 (INTERMAG 2011)   Apr 2011   
Spin-dependent transport properties of Co2MnSi/MgO/n-GaAs tunnel junctions
T. Akiho, M. Harada, T. Uemura, K.-i. Matsuda, and M. Yamamot
Int’l Magnetics Conf. 2011 (INTERMAG 2011)   Apr 2011   
Pronounced oscillations in spin-dependent tunneling resistances of epitaxial MTJswith Co2MnSi electrodes and a MgO barrier
Y. Honda, S. Hirata, G.-f. Li, H.-x. Liu, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 58th Spring Meeting2011, The Japan Society of Applied Physics   Mar 2011   
Epitaxial growth of Co2MnSi/MgO heterostructures on Ge(001) substrates
G.-f. Li, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
The 58th Spring Meeting2011, The Japan Society of Applied Physics   Mar 2011   
Electrical detection of spin injection in Co50Fe50/n-GaAs
T. Uemura, M. Harada, T. Akiho, K.-i. Matsuda, M. Yamamoto
The 58th Spring Meeting2011, The Japan Society of Applied Physics   Mar 2011   
Effects of the insertion of a MgO tunnel barrier on tunneling characteristics in ferromagnet/n-GaAs hetero junction
M. Harada, T. Akiho, K.-i. Matsuda, T. Uemura, and M. Yamamoto
45th Conference of Hokkaido Chapter, The Japan Society of Applied Physics,   Jan 2011   
Spin-dependent tunneling resistances as a function of MgO barrier thickness in magnetic tunnel junctions with Co2MnSi thin films
S. Hirata, Gui-fang Li, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamot
45th Conference of Hokkaido Chapter, The Japan Society of Applied Physics,   Jan 2011   
Epitaxial growth of Heusler alloy Co2MnSi thin films on MgO-buffered Ge substrate
G. -f. Li, T. Taira, K.-i. Matsuda, T. Uemura, and M. Yamamoto
4th Int’l Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation   Jan 2011   
High tunnel magnetoresistance in fully epitaxial CoFe-buffered Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
H.-x. Liu, T. Taira, K. -i. Matsuda, T. Uemura and M. Yamamot
4th Int’l Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation   Jan 2011   
Effects of MgO tunnel barriers on tunneling anisotropic magnetoresistance in Co2MnSi/n-GaAs junctions
T. Akiho, M. Harada, T. Uemura, K. ?i. Matsuda, and M. Yamamoto
The 15th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-15)   Dec 2010   
Highly spin-polarized tunneling characteristics at room temperature in magnetic tunnel junctions with a half-metallic Heusler-alloy spin source and a MgO barrier
H.-x. Liu, T. Taira, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
55th Annual Conf. on Magnetism & Magnetic Materials   Nov 2010   
Structural and magnetic properties at Co2MnSi/MgO(001) interfaces studied by x-ray magnetic circular dichroism and first-principles calculations
Y. Miura, M. Shirai, T. Saito, T. Katayama, T. Ishikawa, M. Yamamoto, D. Asakura and T. Koide
55th Annual Conf. on Magnetism & Magnetic Materials   Nov 2010   
Giant oscillations of spin-dependent tunneling resistances as a function of MgO barrier thickness in fully epitaxial magnetic tunnel junctions of Co2Cr0.6Fe0.4Al/MgO/Co2Cr0.6Fe0.4Al
M. Yamamoto, T. Marukame, T. Ishikawa, T. Taira, K.-i. Matsuda, and T. Uemura
55th Annual Conf. on Magnetism & Magnetic Materials   Nov 2010   
Giant tunnel magnetoresistance in half-metallic Co2MnSi-based fully epitaxial magnetic tunnel junctions
T. Taira, H.-x. Liu, S. Hirata, K.-i. Matsuda, T. Uemura, and M. Yamamoto
55th Annual Conf. on Magnetism & Magnetic Materials   Nov 2010   
Superconducting proximity effect of spin-triplet pairs in NbN/Co2Cr0.6Fe0.4Al/NbN junctions
K.-i. Matsuda, T. Uemura, and M. Yamamoto
55th Annual Conf. on Magnetism & Magnetic Materials   Nov 2010   
Spin-dependent transport properties in Co2MnSi/MgO/n-GaAs junctions [Invited]
T. Uemura, M. Harada, T. Akiho, K. ?i. Matsuda and M. Yamamoto
The 34th Annual Conference on MAGNETICS in Japan 2010   Sep 2010   
High tunnel magnetoresistance in fully epitaxial Co50Fe50-buffered Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
H.-x. Liu, T. Taira, Y. Honda, K. -i. Matsuda, T. Uemura and M. Yamamoto
The 34th Annual Conference on MAGNETICS in Japan 2010   Sep 2010   
Differential Conductance Characteristics and their temperature dependences of NbN/Co2Cr0.6Fe0.4Al/NbN junctions
K. -i. Matsuda, T. Uemura, and M. Yamamoto
The 71th Autumn Meeting, The Japan Society of Applied Physics   Sep 2010   
Giant oscillations in spin-dependent tunneling resistances as a function of barrier thickness in fully epitaxial magnetic tunnel junctions with a MgO barrier
M. Yamamoto, T. Marukame, T. Ishikawa, T. Taira, K.-i. Matsuda and T. Uemura
The 71th Autumn Meeting, The Japan Society of Applied Physics   Sep 2010   
Spin-dependent transport properties of Co2MnSi/MgO/n-GaAs tunnel junctions
M. Harada, T. Akiho, T. Uemura, K. ?i. Matsuda, and M. Yamamoto
The 71th Autumn Meeting, The Japan Society of Applied Physics   Sep 2010   
High tunnel magnetoresistance of up to 450% at room temperature in epitaxial magnetic tunnel junctions with a Heusler-alloy spin source and a MgO barrier
H.-x. Liu, T. Taira, Y. Honda, K.-i. Matsuda, T. Uemura and M. Yamamoto
The 71th Autumn Meeting, The Japan Society of Applied Physics   Sep 2010   
Tunnel magnetoresistance characteristics of fully epitaxial Co2MnAl/MgO/CoFe MTJs with various Mn compositions in Co2MnAl electrodes
G.-f. Li, T. Taira, S. Hirata, K.-I. Matsuda, T. Uemura, and M. Yamamoto
The 2010 Autumn (147th) Meeting of The Japan Institute of Metals,   Sep 2010   
Highly spin-polarized tunneling in Heusler-alloy-based magnetic tunnel junctions with a Co2MnSi upper electrode and a MgO barrier
H.-x. Liu, T. Taira, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
2010 Int’l Conf. on Solid State Devices and Materials (SSDM 2010)   Sep 2010   
Electrical detection of a non-local signal in Co2MnSi/MgO/n-GaAs tunnel junctions
M. Harada, T. Uemura, T. Akiho, K.-i. Matsuda, and M. Yamamoto
6th Int’l Conf. on the Physics and Application of Spin Related Phenomena in Semiconductors (PASPS-VI)   Aug 2010   
Spin-dependent conductance characteristics of Co2MnGe/MgO/Co2MnGe magnetic tunnel junctions
S. Hirata, T. Taira, T. Ishikawa,K. ?i. Matsuda, T. Uemura, and M. Yamamoto
The 57th Spring Meeting, 2010, The Japan Society of Applied Physics   Mar 2010   
Defects induced in nonstoichiometric Co2MnGe thin films investigated through saturation magnetization
G.-f. Li, T. Taira, S. Hirata, Y. Honda, K. ?i. Matsuda, T. Uemura, and M. Yamamoto
The 57th Spring Meeting, 2010, The Japan Society of Applied Physics   Mar 2010   
Interfacial-structure dependence of TAMR effect and magnetic crystalline anisotropy in a Co2MnSi/n-GaAs junctions
M. Harada, T. Akiho, K. ?i. Matsuda, T. Uemura, and M. Yamamoto
The 57th Spring Meeting, 2010, The Japan Society of Applied Physics   Mar 2010   
Fabrication of Heusler-alloy-based magnetic tunnel junctions having an upper Co2MnSi electrode with various Mn compositions and having a Co50Fe50 lower electrode
H.-x. Liu, T. Ishikawa, K.-i. Matsuda, T. Uemura and M. Yamamoto
The 57th Spring Meeting, 2010, The Japan Society of Applied Physics   Mar 2010   
Influence of film composition on the saturation magnetization of Co2MnGe thin films
G.-f. Li, T. Taira, S. Hirata, Y. Honda, K.?i. Matsuda, T. Uemura, and M. Yamamoto
The 2010 Spring (146th) Meeting of The Japan Institute of Metals   Mar 2010   
Conductance characteristics of magnetic tunnel junctions with Heusler alloy Co2MnGe thin films fabricated with various film compositions
S. Hirata, T. Taira, K. ?i. Matsuda, T. Uemura, and M. Yamamoto
The 2010 Spring (146th) Meeting of The Japan Institute of Metals   Mar 2010   
Creation and control of spin current using Heusler alloys
T. Uemura, T. Ishikawa, M. Harada, T. Taira, K. ?i. Matsuda and M. Yamamoto
The 2010 Spring (146th) Meeting of The Japan Institute of Metals   Mar 2010   
Effect of nonstoichiometry on saturation magnetization of Heusler alloy Co2MnGe thin films
G.-f. Li, T. Taira, S. Hirata, Y. Honda, K. ?i. Matsuda, T. Uemura, and M. Yamamoto
45th Conference of Hokkaido Chapter, The Japan Society of Applied Physic   Jan 2010   

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(A))
Project Year: 2008 - 2010    Investigator(s): Masafumi YAMAMOTO
Heusler alloy thin films are promising as ferromagnetic electrode materials because they feature high spin polarization arising from their potentially half-metallic nature. High-quality heterostructures with Heusler alloy thin films were developed...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(特定領域研究)
Project Year: 2007 - 2010    Investigator(s): Koki TAKANASHI
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(特定領域研究)
Project Year: 2007 - 2010    Investigator(s): Masafumi YAMAMOTO
A highly efficient spin-polarized electron source or spin source is a key element for spintronic devices, in which both the charge and the spin of the electron are utilized as the information carrier. Heusler alloys thin films have attracted much ...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2006 - 2007    Investigator(s): Masafumi YAMAMOTO
The purpose of the present study was to develop spintronic devices utilizing the half-metallicity of Co-based Heusler alloys (Co_2YZ). Fully epitaxial magnetic tunnel junctions (MTJs) with a Co_2YZ thin film or Co_2YZ thin films and a MgO barrier ...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2004 - 2006    Investigator(s): Eiichi SANO
The purpose of this research is to establish fundamental device, circuit, and measurement technologies for realizing compact, low-power communication circuits with carrier frequencies raging from a few hundreds GHz to one THz. The following result...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(学術創成研究費)
Project Year: 2002 - 2006    Investigator(s): Yoshihito OSADA
(I) Synthesis of hydrogel as soft and wet artificial musclesBy introducing the double network structure into hydrogel, we succeeded in obtaining the hydrogel with extra-ordinary high mechanical toughness (Fracture strength of about several Mpa).In...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2004 - 2005    Investigator(s): Masafumi YAMAMOTO
Cobalt-based full-Heusler alloy thin films have recently attracted much interest as highly desirable ferromagnetic electrodes for spintronic devices because of the half-metallic ferromagnetic nature theoretically predicted for some of these alloys...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2001 - 2002    Investigator(s): Masafumi YAMAMOTO
Novel devices based on the concept of utilizing spin dependent resonant tunneling phenomena were investigated. The device characteristics of a resonant tunneling magnetic random access memory (MRAM) using a ferromagnetic triple-barrier structure i...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2000 - 2001    Investigator(s): Yoshihito AMEMIYA
We proposed a method of constructing quantum-dot logic circuits that can be used to develop large digital systems with ultra-low power consumption. These dot circuits consist of dot arrays fabricated using a wrap-gate structure, and they perform l...

Patents

 
Semiconductor Device
特許第2641862号
Quantum interference device using electron wave
特許第3142021号
Quantum interference device using electron wave
特許第3159339号
Quantum interference device using electron wave
特許第3204421号
Complementary logic circuit
特許第3141966号
Quantum Interference Devices and Complementary Logic Utilizing Thereof
United States Patent Number 5,453,627
Semiconductor logic circuit
特許第3473809号