OKAMOTO KIYOMI

Profile Information

Degree: Doctor of Science

J-GLOBAL ID: 200901037609684517
researchmap Member ID: 1000203959

Research Areas

Natural sciences / Semiconductors, optical and atomic physics /

Research History

1982 - 2001

:東京工業大学助手
1982 - 2001

:
1979 - 1982

:東洋大学非常勤講師
1979 - 1982

:
1978 - 1979

:東京工業大学助手
1978 - 1979

:
Assistant Professor, Tokyo Institute of Technology Graduate School of Science and Engineering, Department of Physics(Condensed Matter Physics), Graduate School of Science and Engineering Physics (Condensed Matter Physics)

Education

Misc.

242

Interplay between the trimerization and frustration in spin-1/2 distorted 2 diamond type spin chain with the XXZ anisotropy

K. Okamoto, A. Tokuno, T. Sakai

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310(2) E457-E459, Mar, 2007
Interplay between the trimerization and frustration in spin-1/2 distorted 2 diamond type spin chain with the XXZ anisotropy

K. Okamoto, A. Tokuno, T. Sakai

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 310(2) E457-E459, Mar, 2007
Finite-field ground state of an S = 1 zigzag ladder

T. Tonegawa, K. Okamoto, K. Okunishi, T. Sakai

Journal of Magnetism and Magnetic Materials, 310(2) e372-e374, Mar, 2007
Quantum Phase Transition in the Three-Leg Spin Nanotube

T. Sakai, K. Okunishi, K. Okamoto, M, Sato M, Matsumoto, Y. Otsuka

J. Mag. Mag. Mat., 31(2, Part 2) e423-e425, 2007
Finite-Field Ground State of an S=1 Zigzag Ladder

T. Tonegawa, K. Okamoto, K. Okunishi, T. Sakai

J. Mag. Mag. Mat., 310(2, Part 2) e372-e374, 2007
Field-induced incommensurate order in frustrated spin ladder

Toru Sakai, Kiyomi Okamoto

JOURNAL OF PHYSICS-CONDENSED MATTER, 19(14) 145231-1-5, 2007
Quantum Phase Transition in the Three-Leg Spin Nanotube

T. Sakai, K. Okunishi, K. Okamoto, M, Sato M, Matsumoto, Y. Otsuka

J. Mag. Mag. Mat., 31(2, Part 2) e423-e425, 2007
Field-Induced Incommensurate Order in Frustrated Spin Ladder

T. Sakai, K. Okamoto

J. Phys.: Cond. Matter, 19(14) 145231-1-5, 2007
Theory of excitation modes in diamond chain compound Cu-3(CO3)(2)(OH)(2)

M. Matsumoto, T. Yamada, M. Koga, K. Okamoto, T. Sakai

PHYSICA B-CONDENSED MATTER, 378-80 1037-1038, May, 2006
Possibility of field-induced incommensurate order in a quasi-one-dimensional frustrated spin system

N Maeshima, K Okunishi, K Okamoto, T Sakai, K Yonemitsu

JOURNAL OF PHYSICS-CONDENSED MATTER, 18(20) 4819-4826, May, 2006
Theory of excitation modes in diamond chain compound Cu-3(CO3)(2)(OH)(2)

M. Matsumoto, T. Yamada, M. Koga, K. Okamoto, T. Sakai

PHYSICA B-CONDENSED MATTER, 378-80 1037-1038, May, 2006
Possibility of field-induced incommensurate order in a quasi-one-dimensional frustrated spin system

N Maeshima, K Okunishi, K Okamoto, T Sakai, K Yonemitsu

JOURNAL OF PHYSICS-CONDENSED MATTER, 18(20) 4819-4826, May, 2006
Field-induced incommensurate order in a Quasi-1D S=1 antiferromagnet

Toru Sakai, Kiyomi Okamoto, Kouichi Okunishi, Takashi Tonegawa

AIP Conference Proceedings, 850 1065-1066, 2006
Kikuchi et al. Reply

H. Kikuchi, Y. Fujii, M. Chiba, S. Mitsudo, T. Idehara, T. Tonegawa, K, Okamoto T, Sakai T, Kuwai …

Phys. Rev. Lett., 97 089702, 2006
Quantum magnetization plateau of an anisotropic mixed spin chain

T. Sakai, T. Tonegawa, K. Kamoto

Yamada Conference LX on Research in High Magnetic Fields, 51 163-166, 2006
1/3 magnetization plateau in a one-dimensional anisotropic ferrimagnet

T. Tonegawa, T. Sakai, K. Okamoto, M. Kaburagi

YAMADA CONFERENCE LX ON RESEARCH IN HIGH MAGNETIC FIELDS, 51 171-+, 2006
Field-Induced Incommensurate Order in Quai-1D S=1 Antiferromagnet

T. Sakai, K. Okamoto, K. Okunishi, T. Tonegawa

LT24 proceedings (AIP Conference Proceedings series 850), 1065-1066, 2006
Kikuchi et al. Reply

H. Kikuchi, Y. Fujii, M. Chiba, S. Mitsudo, T. Idehara, T. Tonegawa, K, Okamoto T, Sakai T, Kuwai …

Phys. Rev. Lett., 97 089702, 2006
Quantum magnetization plateau of an anisotropic mixed spin chain

T. Sakai, T. Tonegawa, K. Kamoto

Yamada Conference LX on Research in High Magnetic Fields, 51 163-166, 2006
1/3 magnetization plateau in a one-dimensional anisotropic ferrimagnet

T. Tonegawa, T. Sakai, K. Okamoto, M. Kaburagi

YAMADA CONFERENCE LX ON RESEARCH IN HIGH MAGNETIC FIELDS, 51 171-+, 2006

Books and Other Publications

Field-Induced Transitions and Spin Gaps in Low-Dimensional Quantum Antiferromagnets

Proceedings of French-Japanese Symposium on Quantum Properties of Low-Dimensinal Antiferromagnets (eds. Y.Ajiro and J.-P. Boucher, Kyushu University press, 2002), 2002
Field-Induced Transitions and Spin Gaps in Low-Dimensional Quantum Antiferromagnets

Proceedings of French-Japanese Symposium on Quantum Properties of Low-Dimensinal Antiferromagnets (eds. Y.Ajiro and J.-P. Boucher, Kyushu University press, 2002), 2002
Magnetization Plateau of S=1/2 Trimerized XXZ Chain and Ferromagnetic-Ferromagnetic-Antiferromagnetic Chain

Statistical Physics (AIP Conference Proceedings 519) American Institute of Physics,, 2000
Magnetization Plateau of S=1/2 Trimerized XXZ Chain and Ferromagnetic-Ferromagnetic-Antiferromagnetic Chain

Statistical Physics (AIP Conference Proceedings 519) American Institute of Physics,, 2000
Critical Exponents of the Energy Gap and the Energy Gain of the Spin-Peierils System with Next-Nearest-Neighbor Interactions

Statistical Physics : Experiments, Theories and Computer Simulations (World Scientific), 1998
Critical Exponents of the Energy Gap and the Energy Gain of the Spin-Peierils System with Next-Nearest-Neighbor Interactions

Statistical Physics : Experiments, Theories and Computer Simulations (World Scientific), 1998
Superconducting Fluctuation of Quasi-One-Dimensional Conductors

Proc. Int. Sym. Superconductive Quantum Electronics, 1984
Superconducting Transition Temperature of Quasi-One-Dimensional Conductors

Proc. Int. Sym. Superconductive Quantum Electronics, 1984
Superconducting Fluctuation of Quasi-One-Dimensional Conductors

Proc. Int. Sym. Superconductive Quantum Electronics, 1984
Superconducting Transition Temperature of Quasi-One-Dimensional Conductors

Proc. Int. Sym. Superconductive Quantum Electronics, 1984
Electrical Resistivity of a Quasi-One-Dimensional Superconductor

Proceedings of the Internatinal Symposium on Superconductive Quantum Electronics, 1983
Electrical Resistivity of a Quasi-One-Dimensional Superconductor

Proceedings of the Internatinal Symposium on Superconductive Quantum Electronics, 1983

Professional Memberships

日本物理学会

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Education

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