UEMURA Tetsuya

J-GLOBAL         Last updated: Nov 4, 2019 at 13:57
 
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Name
UEMURA Tetsuya
E-mail
uemuraist.hokudai.ac.jp
URL
http://www.ist.hokudai.ac.jp/labo/nanodev/index_english.html
Affiliation
Hokkaido University
Section
Graduate School of Information Science and Technology, Division of Electronics for Informatics
Job title
Professor

Research Interests

 
 

Academic & Professional Experience

 
Apr 2016
 - 
Today
Professor, Graduate School of Information Science and Technology, Hokkaido University
 
Apr 2007
 - 
Mar 2016
Associate Professor, Graduate School of Information Science and Technology, Hokkaido Universtiy
 
Apr 2004
 - 
Mar 2007
Associate Professor, Graduate School of Information Science and Technology, Hokkaido University
 
Jan 2002
 - 
Mar 2004
Associate Professor, Graduate School of Engineering, Hokkaido University
 
Apr 1990
 - 
Dec 2001
Fundamental Reseach Laboratory, NEC Corporation
 

Education

 
Apr 1988
 - 
Mar 1990
Division of Electrical Engineering, Graduate School of Engineering, Kyoto University
 
Apr 1984
 - 
Mar 1988
Department of Electrical Engineering, Facalty of Engineering, Kyoto University
 

Published Papers

 
Effects of spin–orbit torque on domain wall motion in a Ta/MnGa/NiAl structure
M. Yamanouchi, N.V. Bao, M. Inoue, and T. Uemura
64th Annual Conference on Magnetism and Magnetic Materials, Abstracts,      Nov 2019   [Refereed]
M. Yamanouchi, N. V. Bao, M. Inoue, and T. Uemura
Jpn. J. Appl. Phys.   vol.58 100903(4pp)   Sep 2019   [Refereed]
M. Inoue, K. Inubushi, D. Mouri, T. Tanimoto, K. Nakada, K. Kondo, M. Yamamoto, and T. Uemura
Appl. Phys. Lett.   vol.114 062401(5pp)   Feb 2019   [Refereed]
Electrical spin injection into an AlGaAs/GaAs-based 2DEG system with a Co2MnSi spin source up to room temperature
Z. Lin, D. Pan, M. Rasly and T. Uemura
14th Joint MMM-Intermag Conference, Abstracts   86   Jan 2019   [Refereed]
Z. Lin, D. Pan, M. Rasly, and T. Uemura
Appl. Phys. Lett.   vol.114 012405(5pp)   Jan 2019   [Refereed]
Origin of bi-quadratic interlayer exchange coupling in Co2MnSi-based pseudo spin valves
D. Mouri, M. Inoue, K. Inubushi, T. Tanimoto, K. Nakada, M. Yamamoto, and T. Uemura
2018 International Conference on Solid State Devices and Materials (SSDM2018), Extended Abstracts      Sep 2018   [Refereed]
Mn-composition dependence of strength of bi-quadratic interlayer exchange coupling in Co2MnSi-based pseudo spin-valves
M. Inoue, D. Mouri, K. Inubushi, K. Nakada, M. Yamamoto, and T. Uemura
IEEE International Magnetics Conference 2018 (INTERMAG 2018), Digest Book   p.855   Apr 2018   [Refereed]
Electrical spin injection into an AlGaAs/GaAs-based high-mobility two-dimensional electron system
Z. Lin, D. Pan, M. Rasly and T. Uemura
IEEE International Magnetics Conference 2018 (INTERMAG 2018), Digest Book   p.1616   Apr 2018   [Refereed]
Coherent manipulation of nuclear spins in GaAs using electrical spin injection
T. Uemura
International Workshop on NanoScience and NanoOptics 2017      Nov 2017   [Invited]
M. Rasly, Z. Lin, and T. Uemura
Phys. Rev. B   vol.96 184415(8pp)   Nov 2017   [Refereed]
Influence of Mn composition in Co2MnSi films on magnetoresistance characteristics of Co2MnSi-based current-perpendicular-to-plane spin valves
M. Inoue, B. Hu, K. Moges, K. Inubushi, K. Nakada, M. Yamamoto, and T. Uemura
2017 International Conference on Solid State Devices and Materials (SSDM2017), Extended Abstracts   989-990   Sep 2017   [Refereed]
M. Inoue, B. Hu, K. Moges, K. Inubushi, K. Nakada, M. Yamamoto, and T. Uemura
Appl. Phys. Lett.   vol.111 082403(5pp)   Aug 2017   [Refereed]
Influence of Mn composition in Co2MnSi films on magnetoresistance characteristics of Co2MnSi-based giant magneto-resistance devices
M. Inoue, B. Hu, K. Moges, K. Inubushi, K. Nakada, M. Yamamoto, and T. Uemura
9th International School and Conference on Spintronics and Quantum Information Technology, Abstract Book   85   Jun 2017   [Refereed]
Z. Lin, M. Rasly, and T. Uemura
Appl. Phys. Lett.   vol.110 232404 (4pp)   Jun 2017   [Refereed]
Electrical control of nuclear spin polarization: Experimental and quantitative modeling
M. Rasly, Z. Lin, M. Yamamoto and T. Uemura
IEEE Int’l Magnetics Conf. 2017 (INTERMAG 2017), Digests (USB Memory)   GO-12   Apr 2017   [Refereed]
Fabrication of a Spin Injection Device Having a Top-gate Structure
W. Nomura, T. Miyakawa, M. Yamamoto, and T. Uemura
2016 International Conference on Solid State Devices and Materials (SSDM2016), Extended Abstracts   921-922   Sep 2016   [Refereed]
Tetsuya. Uemura, Takafumi Akiho, Yuya Ebina, Masafumi Yamamoto
Proc. of SPIE   vol.9931 99311L-1-99311L-7   Sep 2016   [Invited]
B. Hu, K. Moges, Y. Honda, H.-x. Liu, T. Uemura, M. Yamamoto, J. Inoue, and M. Shirai
Phys. Rev. B.   vol.94 094428(15pp)   Sep 2016   [Refereed]
T. Uemura
SPIE Optics + Photonics 2016, Spintronics IX   vo.9931 55   Aug 2016   [Invited]
Highly efficient spin injection from a half-metallic spin source of Co2MnSi and sensitive detection of nuclear spin states
T. Uemura
The 18th International Conference on Crystal Growth and Epitaxy (ICCGE18), Technical Digest   243   Aug 2016   [Invited]
L. Li, I. Lee, D. Lim, S. Rathi, M. Kang, T. Uemura, and G.-H. Kim
Nanotechnology   vol.27 335201(6pp)   Jun 2016   [Refereed]
K. Moges, Y. Honda, H.-x. Liu, T. Uemura, M. Yamamoto, Y. Miura, and M. Shirai
Phys. Rev. B.   vol.93 134403(15pp)   Apr 2016   [Refereed]
R. Fetzer, H.-x. Liu, B. Stadtmüller, T. Uemura,M. Yamamoto, M. Aeschlimann and M. Cinchetti
J. Phys. D: Appl. Phys.   vol.49 195002(5pp)   Apr 2016   [Refereed]
M. Rasly, Z. Lin, M. Yamamoto, and T. Uemura
AIP Advances   vol.6 056305(8pp)   Mar 2016   [Refereed]
Z. Lin, K. Kondo, M. Yamamoto, and T. Uemura
Jpn. J. Appl. Phys.   vol.55 04EN03 (5pp)   Mar 2016   [Refereed]
T. Miyakawa, T. Akiho, Y. Ebina, M. Yamamoto, and T. Uemura
Appl. Phys. Express   vol.9 023103(4pp)   Jan 2016   [Refereed]
Analysis of transient response of nuclear spins in GaAs with/without nuclear magnetic resonance
M. Rasly, Z. Lin, M. Yamamoto, and T. Uemura
13th Joint MMM-Intermag Conference, Abstracts   278-279   Jan 2016   [Refereed]
Transient Analysis of Oblique Hanle Signals Observed in GaAs
Z.c. Lin, M. Yamamoto and T. Uemura
2015 Intrnational Conference on Solid State Devices and Materials (SSDM2015), Extended Abstracts (DVD, USB memory)   432-433   Sep 2015   [Refereed]
Temperature Dependence of Spin-Dependent Tunneling Conductance of Magnetic Tunnel Junctions with Highly Spin-Polarized Electrodes
B. Hu, Kidist. Moges, H.x. Liu, Y. Honda, T. Uemura and M. Yamamoto
2015 Intrnational Conference on Solid State Devices and Materials (SSDM2015), Extended Abstracts (DVD, USB memory)   410-411   Sep 2015   [Refereed]
Bias Voltage Dependence of the Spin-dependent Tunneling Conductance of Co2(Mn,Fe)Si-Based Magnetic Tunnel Junctions Exhibiting Giant Tunneling Magnetoresistances
Kidist Moges, B. Hu, H.x. Liu, T. Uemura and M. Yamamoto
2015 Intrnational Conference on Solid State Devices and Materials (SSDM2015), Extended Abstracts (DVD, USB memory)   408-409   Sep 2015   [Refereed]
T. Akiho, M. Yamamoto, and T. Uemura
Appl. Phys. Express   vol.8 093001(4pp)   Aug 2015   [Refereed]
Gate control of spin-valve signal and Hanle signal in GaAs observed by a four-terminal nonlocal geometry
T. Miyakawa, T. Akiho, Y. Ebina, M. Yamamoto, and T. Uemura
17th International Conference on Modulated Semiconductor Structures, Abstracts   158   Jul 2015   [Refereed]
Coherent control of nuclear spins using spin injection from half-metallic Co2MnSi
T. Akiho, Y. Ebina, M. Yamamoto, and T. Uemura
21st International Conference on Electronic Properties of Two-Dimensional Systems, Abstracts   vol.91 186   Jul 2015   [Refereed]
Temperature dependence of spin-dependent tunneling resistances of Co2MnSi-based and Co2(Mn,Fe)Si-based magnetic tunnel junctions showing high tunneling magnetoresistances
B. Hu, H. Liu, T. Kawami, Kidist Moges, Y. Honda, T. Uemura and M. Yamamoto
IEEE Int’l Magnetics Conf. 2015 (INTERMAG 2015), Digests (USB Memory)   GB-11   May 2015   [Refereed]
Kidist Moges, H. Liu, T. Kawami, T. Uemura and M. Yamamoto
IEEE Int’l Magnetics Conf. 2015 (INTERMAG 2015), Digests (USB Memory)   GB-06   May 2015   [Refereed]
T. Uemura and M. Yamamoto
IEEE Int’l Magnetics Conf. 2015 (INTERMAG 2015), Digests (USB Memory)   CC-01   May 2015   [Invited]
R. Fetzer, S. Ouardi, Y. Honda, H.-x. Liu, S. Chadov, B. Balke, S. Ueda, M. Suzuki, T. Uemura, M. Yamamoto, M. Aeschlimann, M. Cinchetti, G. H. Fecher, and C. Felser
J. Phys. D: Appl. Phys.   vol.48 164002(12pp)   Apr 2015   [Refereed]
H.-x. Liu, T. Kawami, Kidist Moges, T. Uemura, M. Yamamoto, F. Shi and P. M. Voyles
J. Phys. D: Appl. Phys.   vol.48 164001(9pp)   Apr 2015   [Refereed]
T. Uemura, T. Akiho, Y. Ebina, and M. Yamamoto
Phys. Rev. B.   vol.91 140410(R)(5pp)-99311L-7   Apr 2015   [Refereed][Invited]
R. Fetzer, B. Stadtmüller, Y. Ohdaira, H. Naganuma, M. Oogane, Y. Ando, T. Taira, T. Uemura, M. Yamamoto, M. Aeschlimann, and M. Cinchetti
Scientific Reports   vol.5 8537(6pp)   Feb 2015   [Refereed]
A. Yamamoto, Y. Ando, T. Shinjo, T. Uemura, and M. Shiraishi
Phys. Rev. B   vol.91 024417(6pp)   Jan 2015   [Refereed]
Effect of nonstoichiometry on the half-metallicity of Co2(Mn,Fe)Si thin films investigated through saturation magnetization
Kidist Moges, Y. Honda, T. Uemura, M.Yamamoto Y. Miura and M. Shirai
59th Annual Conference on Magnetism and Magnetic Materials, Abstracts   48-49   Nov 2014   [Refereed]
Electrical detection of nuclear magnetic resonance in GaAs using transient oblique Hanle effect measurements
T. Uemura, T. Akiho, Y. Ebina and M. Yamamoto
59th Annual Conference on Magnetism and Magnetic Materials, Abstracts,   671-672   Nov 2014   [Refereed]
Efficient nuclear spin polarization and electrical detection of nuclear magnetic resonance in GaAs using half-metallic spin source
T. Uemura and M. Yamamoto
The 3rd Internaional Conference of Asian Union of Magnetics Societies, Abstracts   p.263   Oct 2014   [Invited]
Efficient Dynamic Nuclear Polarization Using Electrical Spin Injection from a Half-Metallic Spin Source
T. Akiho, Y. Ebina, H.-x. Liu. M. Yamamoto, T. Uemura
32nd International Conference on the Physics of Semiconductors (ICPS2014), Abstracts, Spintronics & Spin phenomena II   2-3   Aug 2014   [Refereed]
Highly efficient spin injection and dynamic nuclear polarization using a half-metallic spin source
Tetsuya UEMURA
The 6th IEEE International Nanoelectronics Conference 2014 (IEEE INEC 2014), Abstracts      Jul 2014   [Invited]
T. Ishikura, L.-K. Liefeith, Z. Cui, K. Konishi, K. Yoh, and T. Uemura
Appl. Phys. Express   vol.7 073001(4pp)   Jun 2014   [Refereed]
Dependence of degree of temperature dependence of TMR ratio of Co2MnSi/MgO/Co2MnSi MTJs on Mn composition in Co2MnSi electrodes
Y. Honda, H.-x. Liu, T. Uemura, and M. Yamamoto
IEEE Int’l Magnetics Conf. 2014 (INTERMAG 2014), Digests (USB Memory)   2407-2408   May 2014   [Refereed]
Y. Ebina, T. Akiho, H.-x. Liu, M. Yamamoto, and T. Uemura
Appl. Phys. Lett.   vol.104 172405(4pp)   May 2014   [Refereed]
X. Kozina, J. Kare, S. Ouardi, S. Chadov, G. H. Fecher, C. Felser, G. Stryganyuk, B. Balke, T. Ishikawa, T. Uemura, M. Yamamoto, E. Ikenaga , S. Ueda, and K. Kobayashi
Phys. Rev. B   vol.89 125116(10pp)   Mar 2014   [Refereed]

Misc

 
Temperature dependence of spin-dependent tunneling resistance of Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
Y. Honda, H.-x. Liu, T. Uemura, M. Yamamoto
49th Conference of Hokkaido Chapter, The Japan Society of Applied Physics, Collected Abstracts   vol.49 p.5, A-5   Dec 2013
Demonstration of high spin injection efficiency in Co2MnSi/CoFe/n-GaAs junctions
Y. Ebina, T. Akiho, H.-x. Liu, M. Yamamoto, T. Uemura
49th Conference of Hokkaido Chapter, The Japan Society of Applied Physics, Collected Abstracts   vol.49 p.4, A-4,   Dec 2013
Spin lifetime in strained InGaAs channels investigated through all electrical spin injection and detection
T. Akiho, M. Yamamoto, T. Uemura
The 18th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-18), Program and Abstracts   vol.18 p.13, A5   Dec 2013
Dynamic nuclear polarization observed in Co2MnSi/CoFe/n-GaAs heterojunctions
T. Akiho, H.-x. Liu, M. Yamamoto, T. Uemura
Digests of the 37th Annual Conference on Magnetics in Japan 2013   vol.37 p.366, 6aC-8   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, T. Uemura
Digests of the 37th Annual Conference on Magnetics in Japan 2013   vol.37 p.365, 6aC-7   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, M. Yamamoto
Digests of the 37th Annual Conference on Magnetics in Japan 2013   vol.37 p.53, 3pC-8   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, M. Shirai
Digests of the 37th Annual Conference on Magnetics in Japan 2013   vol.37 p.52, 3pC-7   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, T. Uemura
Extended Abstracts of the 74th Autumn Meeting 2013, The Japan Society of Applied Physics (DVD-ROM)   vol.74 10-041,20a-C15-3   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, M. Yamamoto
Extended Abstracts of the 74th Autumn Meeting 2013, The Japan Society of Applied Physics (DVD-ROM)   vol.74 10-018,18a-C15-4   Sep 2013
Half-metallic Heusler alloy thin films for spintronic devices
M. Yamamoto, T. Uemura
Extended Abstracts of the 74th Autumn Meeting 2013, The Japan Society of Applied Physics (DVD-ROM)   vol.74 077,18p-C15-2   Sep 2013   [Invited]
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
Extended Abstracts of the 60th JSPS Spring Meeting, 2013 (DVD-ROM)   vol.60 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
Extended Abstracts of the 60th JSPS Spring Meeting, 2013 (DVD-ROM)   vol.60 10-038, 30p-A7-7   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, Collected Abstracts   vol.48 p.59, B-27   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, Collected Abstracts   vol.48 p.58, B-26   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, Collected Abstracts   vol.48 p.17, A-17   Jan 2013
Tunnel 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), Program and Abstracts   vol.17 p.25,P5   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), Program and Abstracts   vol.17 p.19, B5   Dec 2012   [Invited]
Co50Fe50電極からGaAs へのスピン注入の電気的検出
T. Uemura, T. Akiho, M. Harada, K.-i. Matsuda, and M. Yamamoto
Digests of the 35th Annual Conference on Magnetics in Japan 2011   vol.35 p.338, 30aB-3   Sep 2012
Transient oblique Hanle signals observed in a Co2MnSi/CoFe/n-GaAs Schottky tunnel junction with non-local four-terminal configuration
Jinhai Shan, Takafumi Akiho, Ken-ichi Matsuda, Masafumi Yamamoto, and Tetsuya Uemura
Extended Abstracts of the 73th Autumn Meeting 2012, The Japan Society of Applied Physics (DVD-ROM)   vol.73 10-100, 14a-H6-10   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
Extended Abstracts of the 73th Autumn Meeting 2012, The Japan Society of Applied Physics (DVD-ROM)   vol.73 10-052, 13p-H6-6   Sep 2012
Spin-polarization measurement for Heusler alloy Co2MnSi using Co2MnSi/MgO/NbN junctions
K. ?i. Matsuda, T. Shinoki, T. Uemura, and M. Yamamoto
Extended Abstracts of the 73th Autumn Meeting 2012, The Japan Society of Applied Physics (DVD-ROM)   vol.73 10-020, 12a-H6-2   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
Extended Abstracts of the 73th Autumn Meeting 2012, The Japan Society of Applied Physics (DVD-ROM)   vol.73 10-009, 11p-H6-9   Sep 2012
MgO thickness dependence of spin accumulation signal in CoFe/MgO/Si
Tetsuya Uemura, Jun Fijisawa, Ken-ichi Matsuda, Masafumi Yamamoto
Extended Abstracts of the 59th Spring Meeting2012, The Japan Society of Applied Physics (DVD-ROM)   vol.59 10-056, 17a-B4-9   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
Extended Abstracts of the 59th Spring Meeting2012, The Japan Society of Applied Physics (DVD-ROM)   vol.59 10-059, 17a-B4-12   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
Extended Abstracts of the 59th Spring Meeting2012, The Japan Society of Applied Physics (DVD-ROM)   vol.59 10-005, 16a-B4-5   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
Extended Abstracts of the 59th Spring Meeting2012, The Japan Society of Applied Physics (DVD-ROM)   vol.59 10-006, 16a-B4-6   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, Collected Abstracts   vol.47 p.78, C-9   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, Collected Abstracts   vol.47 p.77, C-8   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, Collected Abstracts   vol.47 p.73, C-4   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, Collected Abstracts   vol.47 p.72, C-3   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, Proceedings of GCOE-NGIT 2012   vol.5 p.289, N-06   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, Proceedings of GCOE-NGIT 2012   vol.5 p.287, N-05   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), Program and Abstracts   vol.16 pp.121-122, F4   Nov 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
Digests of the 35th Annual Conference on Magnetics in Japan 2011   vol.35 p.4, 27aB-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
Extended Abstracts of the 72th Autumn Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.72 10-058, 2a-S-5   Aug 2011
Spin injection from Co50Fe50 into GaAs at room temperature
Tetsuya Uemura, Takafumi Akiho, Masanobu Harada, Ken-ichi Matsuda, Masafumi Yamamoto
Extended Abstracts of the 72th Autumn Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.72 10-028, 31a-ZS-5   Aug 2011
Influence of MgO insertion on spin dependent transport properties ofCoFe/n-GaAs hetero junctions
Takafumi Akiho, Tetsuya Uemura, Masanobu Harada, Ken-ichi Matsuda, Masafumi Yamamoto
Extended Abstracts of the 72th Autumn Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.72 10-027, 31a-ZS-4   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
Extended Abstracts of the 72th Autumn Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.72 10-003, 30a-ZS-3   Aug 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
Extended Abstracts of the 58th Spring Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.58 10-090, 26p-KR-7   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
Extended Abstracts of the 58th Spring Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.58 10-007, 25a-KM-7   Mar 2011
Electrical detection of spin injection in Co50Fe50/n-GaAs
T. Uemura, M. Harada, T. Akiho, K.-i. Matsuda, M. Yamamoto
Extended Abstracts of the 58th Spring Meeting2011, The Japan Society of Applied Physics (DVD-ROM)   vol.58 10-042, 24a-KQ-11   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
46th Conference of Hokkaido Chapter, The Japan Society of Applied Physics, Collected Abstracts   vol.46 p.44, B-11   Jan 2011
Spin-dependent tunneling resistance as a function of MgO barrier thickness in magnetic tunnel junctions withCo2MnSi thin films
S. Hirata, Gui-fang Li, Y. Honda, K.-i. Matsuda, T. Uemura, and M. Yamamoto
46th Conference of Hokkaido Chapter, The Japan Society of Applied Physics, Collected Abstracts   vol.46 p.43, B-10   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, Proceedings of GCOE-NGIT 2011   vol.4 p.281, N-04   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. Yamamoto
4th Int’l Symposium on Global COE Program of Center for Next-Generation Information Technology Based on Knowledge Discovery and Knowledge Federation, Proceedings of GCOE-NGIT 2011   vol.4 p.283, N-05   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),Program and Abstracts   vol.15 pp.97-98, D1   Dec 2010
Spin-dependent transport properties in Co2MnSi/MgO/n-GaAs junctions
T. Uemura, M. Harada, T. Akiho, K. ?i. Matsuda and M. Yamamoto
Digest of the 34th Annual Conference on MAGNETICS in Japan 2010   vol.34 p.233, 6pB-12   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
Digest of the 34th Annual Conference on MAGNETICS in Japan 2010   vol.34 p.220, 6aB-9   Sep 2010
Differential Conductance Characteristics and their temperature dependences of NbN/Co2Cr0.6Fe0.4Al/NbN junctions
K. ?i. Matsuda, T. Uemura, and M. Yamamoto
Extended Abstracts of the 71th Autumn Meeting, The Japan Society of Applied Physics (DVD-ROM)   vol.71 11-017, 14a-P3-17   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
Extended Abstracts of the 71th Autumn Meeting, The Japan Society of Applied Physics (DVD-ROM)   vol.71 10-064, 14p-J-4   Sep 2010

Books etc

 
Heusler Alloys
M. Yamamoto and T. Uemura (Part:Joint Work, Chap. 18)
Springer International Publishing Switzerland   Jan 2016   

Conference Activities & Talks

 
Coherent Control of Nuclear Spins in Semiconductor using Electrical Spin Injection [Invited]
UEMURA Tetsuya
2016 RCIQE International Seminar   8 Mar 2016   
Half-metallic Heusler alloys for the spin sources of spintronic devices [Invited]
Masafumi Yamamoto and Tetsuya Uemura
13th RIEC International Workshop on Spintronics   18 Nov 2015   
Manupulation of nuclear spins in GaAs using a half-metallic spin source of Co2MnSi [Invited]
T. Uemura and M. Yamamoto
IEEE Int’l Magnetics Conf. 2015   11 May 2015   
Temperature dependence of spin-dependent tunneling resistance of Co2MnSi/MgO/Co2MnSi magnetic tunnel junctions
Y. Honda, H.-x. Liu, T. Uemura, M. Yamamoto
49th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Dec 2013   
Demonstration of high spin injection efficiency in Co2MnSi/CoFe/n-GaAs junctions
Y. Ebina, T. Akiho, H.-x. Liu, M. Yamamoto, T. Uemura
49th Conference of Hokkaido Chapter, The Japan Society of Applied Physics   Dec 2013   
Spin lifetime in strained InGaAs channels investigated through all electrical spin injection and detection
T. Akiho, M. Yamamoto, T. Uemura
The 18th Symposium on the Physics and Application of Spin-Related Phenomena in Semiconductors (PASPS-18)   Dec 2013   
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 Conference 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 Conference 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 Conference on Magnetism and Magnetic Materials   Nov 2013   
Spin-dependent transport properties of strained InGaAs channel investigated through all electrical spin injection and detection
T. Akiho, M. Yamamoto, and T. Uemura
58th Annual Conference on Magnetism and Magnetic Materials   Nov 2013   

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(B))
Project Year: 2009 - 2011    Investigator(s): Tetsuya UEMURA
The purpose of this research project was to develop fundamental technologies for creation of viable spintronic devices, in which electron spins are utilized as an additional degree of freedom for information and storage. For that purpose we demons...
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2007 - 2008    Investigator(s): Tetsuya UEMURA
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(基盤研究(C))
Project Year: 2004 - 2005    Investigator(s): Tetsuya UEMURA
The objective of this project is to develop novel magnetic random access memory (MRAM) cells consisting of magnetic tunnel junction (MTJ) and negative differential resistance (NDR) devices, such as an interband tunnel diode (ITD) or a resonant tun...