Kuniyuki Koyama - My portal

Profile Information

Affiliation: Professor, Faculty of Integrated Arts and Sciences, The University of Tokushima
: (Concurrent)教授, 理工学部
: (Concurrent)教授, 大学院総合科学教育部

Degree: Dr. of Engineering(Osaka University)

J-GLOBAL ID: 200901011514489440
researchmap Member ID: 1000039257

Research Interests

Research Areas

Natural sciences / Magnetism, superconductivity, and strongly correlated systems /

Research History

1992 - 2001

Faculty of Integrated Arts and Sciences, The University of Tokushima
1992 - 2001

Associate Professor, Faculty of Integrated Arts and
2001

- 徳島大学総合科学部教授
2001

- Professor, Faculty of Integrated Arts and Science, The
1984 - 1992

Faculty of Engineering, Toyohashi University of Technology
1984 - 1992

Research Assistant, Toyohashi University of Technology
University of Tokushima
Science, The University of Tokushima

Education

Misc.

B-11 NMR study in the tetragonal compound CeB2C2

K Magishi, K Koyama, T Saito, K Mizuno, R Watanuki, K Suzuki

PHYSICA B-CONDENSED MATTER, 329 649-650, May, 2003
Pressure and Grain-Size Dependences of the Chiral-Glass Transition in Superconductive Ceramics of YBa₂Cu₃O_7-y

Journal of Low Temperature Physics, 131(3(4) 595-599), 2003
¹¹B NMR Study of Ce_xLa_1-x B₆

Zeitschrift Fur Naturforschung, 57a(), 441-446, 2002
Pressure Dependence of the Chiral-Glass Transition in Y-Ba-Cu-O Superconductors

Journal of Physics and Chemistry of Solids, 63(), 1081-1083, 2002
¹²⁵Te NMR study of IrTe₂

Physica B, 1(312-313), 818-819, 2002
Antiferro-quadrupole ordering of CeB6 studied by resonant X-ray scattering

H Nakao, K Magishi, Y Wakabayashi, Y Murakami, K Kayama, K Hirota, Y Endoh, S Kunii

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 70(7) 1857-1860, Jul, 2001
Nuclear magnetic relaxation in YNi2-xPtxB2C

K Mizuno, T Saito, K Magishi, N Tajiri, K Koyama, K Endo, H Deguchi

PHYSICA B, 284 929-930, Jul, 2000
Magnetic relaxation of YBa2Cu3O7-delta ceramics in an intergrain-ordered phase

M Kawachi, T Yamao, M Hagiwara, M Matsuura, K Koyama, H Deguchi

PHYSICA B, 284 630-631, Jul, 2000
Ordering characteristics of Josephson-coupled network in YBCO ceramics of fine grains at zero external field

T Yamao, T Yamada, M Hagiwara, M Matsuura, K Koyama

PHYSICA B, 284 604-605, Jul, 2000
Rare-earth ionic radius dependence of superconductivity in Pr-substituted and oxygen deficient R1-xPrxBa2Cu3O7-y

K Koyama, T Tange, T Saito, K Mizuno

PHYSICA B, 281 909-911, Jun, 2000
¹¹B NMR in the autiferrowagnetic phases of CeB₆

Physica B, 281&282 548-549, 2000
Intergrain Ordering of a Superconductive Ceramics of YBa₂Cu₄O₈ at Zero External Magnetic Field Studied by Linear and Nonlinear Trnasport Coefficients「(共著)」

Takeshi Yamao, Makoto Hagiwara, Kuniyuki Koyama, Motohiro Matsuura

Journal of the Physical Society of Japan, 68(3) 871-875, 1999
NMR evidence of BCS syperconfuctivity in Y(Ni_1-xPt_x)₂B₂C「(共著)」

Physica B, 259-261(), 594-595, 1999
Nonlinear Electric Response of YBa₂ Cu₄ O₈ Ceramics at the Inter-grain Superconductive Ordering

Journal of Magnetism and Magnetic Materials, 177-181(), 179-180, 1998
Changes in the On-site Holes of Plane Site Cu(2)and Chain Site Cu(1)in Pr-doped Y_1-x Prx Ba₂ Cu₃ O_7-8

Journal of Magnetism and Magnetic Materials, 177-181(), 537-538, 1998
13C NMR study of borocarbide superconductor YNi2B2C

T. Saito, N. Oka, K. Koyama, K. Mizuno, K. Endo, H. Deguchi

Journal of Magnetism and Magnetic Materials, 177-181(1) 557-558, 1998
Cu NQR and Hole Transfer in R_1-x Pr_x Ba₂ Cu₃ O_7-y(共著)

Physica B, 239(), 100-102, 1997
Cu(1)NQR in Y_1-x Prx Ba₂ Cu₃ O₇(共著)

Z. Naturforsch., 51a(), 797-800, 1996
Oxygen Concentration Dependence of Superconductivity in Ln_1-x Prx Ba₂ Cu₃ O_7-x(Ln=Nd, Gd, Ho, Y, Yb)

Czechoslovak Journal of Physics, 46(Suppl.S-3), 1445-1446, 1996
13C NMR in YNi2B2C

Takahito Saito, Kiyoshi Mizuno, Kuniyuki Koyama, Keizo Endo

Czechoslovak Journal of Physics, 46(2) 835-836, 1996

Books and Other Publications

Paramagnetic Meissner Effect in Josephson-Coupled Network of YBCO Ceramics

Toward the Controllable Quantum States World Scientific Publishing Co. Pte. Ltd., 2003
Dynamic Properties of the Intergrain Glass Transition in a Superconductive Ceramic of YBa₂Cu₄O₈「(共著)」

Slow Dynamics in Complex Systems : Eighth Tohwa University International Symposium, 1999

Professional Memberships

Research Projects

超伝導体の核磁気共鳴

基礎科学研究, 1993
Nuclear Magnetic Resonance on Superconductors

Basic Science Research Program, 1993
セラミックス超伝導体の連続する相転移

基礎科学研究, 1992
Successive Phase Transitions in Ceramic Superconductor

Basic Science Research Program, 1992
酸化物高温超伝導体の置換効果

基礎科学研究, 1987
Substitution Effects on High-T_c Oxide superconductor

Basic Science Research Program, 1987