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Theoretical and Numerical Study of Many-Body Interaction and Quantum Phase Transition in Low-Dimensional Magnets

Research Project

Project/Area Number 11440103
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 固体物性Ⅱ(磁性・金属・低温)
Research InstitutionThe University of Tokyo

Principal Investigator

TAKAHASHI Minoru  Institute for Solid State Physics, Professor, 物性研究所, 教授 (40029731)

Co-Investigator(Kenkyū-buntansha) SAKAI Toru  Tokyo Metropolitan Institute of Technology Faculty of Engineering, Associate Professor, 工学部, 助教授 (60235116)
SHIROISHI Masahiro  Institute for Solid State Physics, Research Associate, 物性研究所, 助手 (80323632)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥7,400,000 (Direct Cost: ¥7,400,000)
Fiscal Year 2001: ¥2,700,000 (Direct Cost: ¥2,700,000)
Fiscal Year 2000: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1999: ¥3,100,000 (Direct Cost: ¥3,100,000)
KeywordsMagnetization Curve / Magnetic Plateau / Low-Dimensional Systems / Spin Systemes / Exact Solution / Bethe ansatz / Thermodynamics / Exact diagonalization / 厳密解
Research Abstract

1) High temperature expansion of XXX model by new integral equation
High temperature expansion of thermodynamic quantities such as specific heat and magnetic susceptibility for one-dimensional Heisenberg model has been done up to 24-th order using finite cluster method. On the other hand high temperature expansion by Bethe ansatz method was believed to be difficult. But we succeeded to expand to 100th order using new thermodynamic Bethe ansatz equation. We apply Pade approximation and compared with the numerical results of quantum transfer matrix method.
2) Comparison of Bethe ansatz equation with high-temperature expansion for Hubbard model
Thermodynamic Bethe ansatz equation has infinite number of unknown functions. We made cut off and used Newton's method to solve non-linear integral equation. Generally speaking thermodynamic quantities are expressed by the differentiation of grand potential. Then we must solve linear integral equation to get thermodynamic quantities. But this equation can be done in the same method in Newton's method. Only by one time linear operation we can get first order thermodynamic quantities such as energy, entropy, magnetization and particle density.
3) Emptiness formation probability of one-dimensional isotropic XY model
We investigated the emptiness formation probability which is one of many points corellation functions for one-dimensional XY model using numerical and analytical methods

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (113 results)

All Other

All Publications (113 results)

  • [Publications] N.Muramoto, M.Takahashi: "Integrable Magnetic Model of Two Chains Coupled by Four-Body Interactions"J. Phys. Soc. Jpn.. 68. 2098-2164 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yuko Hosokoshi, Yasuhiro Nakazawa, Katsuya Inoue, Koichi Takizawa, Hiroki Nakano, Minoru Takahashi, Tsuneaki Goto: "Magnetic properties of low-dimensional quantum spin systems made of stable organic biradicals PNNNo, F2 PNNNO, and PIMNO"Phys. Rev. B. 60. 12924-12932 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, M.Takahashi: "Metamagnetism of antiferromagnetic XXZ quantum spin chains"Phys. Rev. B. 60. 7295-7298 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi: "Simplification of thermodynamic Bethe-ansatz equations, cond-mat/0010486. P299-304, Physics and Combinatrix Proceeding of the Nagoya 2000 International Workshop"Simplification of thermodynamic Bethe-ansatz equations. (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi, Masahiro Shiroishi, Andreas Kluemper: "Equivalence of TBA and QTM"J. Phys. A. Math. Gen.. 34. L187-L194 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Hagiwara, Y.Narumi, K.Kindo, N.Maeshima, K.Okunishi, T.Sasaki, M.Takahashi: "High-field magnetization of an S=1 over 2 zigzag chain compound (N2 H5)CuCl 3"Physica B. 294-295. 83-86 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Masahiro Shiroishi, Minoru Takahashi, Yoshihiro Nishiyama: "Emptiness Formation Probability for the One-Dimensional Isotropic XY model"J. Phys. Soc. Jpn.. 70. 3535-3543 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi, Masahiro Shiroishi: "Thermodynamic Bethe ansatz equations of one-dimensional Hubbard model and high temperature expansion"Phys. Rev. B. 65. 165104-1-165104-9 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Masahiro Shiroishi, Minoru Takahashi: "Integral Equation Generates High-Temperature Expansion of the Heisenberg Chain"Phys. Rev. Letters. 89. 117201-1-117201-4 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Nakamura, A.Kitazawa, K.Nomura: "Spin-Gap Phases in Tomonaga-Luttinger Liquids"Phys. Rev. B. 60. 7850-7862 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Nakamura: "Mechanism of CDW-SDW Transition in One Dimension"Phys. Soc. Jpn.. 68. 3123-3126 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A.Kluemper, J.R.Reyes Martinez, C.Scheeren, M.Shiroishi: "The 1/2-XXZ spin-chain at finite magnetic field : Crossover phenomena driven by temperature"J. Stat. Phys.. 102. 937-951 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Nakamura, K.Itoh: "Role of Bond-Bond Interaction in the Extended Hubbard Chain"J. Phys. Soc. Jpn.. 70. 3606-3612 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Itoh, M.Nakamura, N.Muramoto: "Exact Bond-Located Spin Ground State in the Hubbard Chain with Off-Diagonal Coulomb Interactions"J. Phys. Soc. Jpn.. 70. 1202-1205 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, M.Takahashi: "Spin Flop in 1D Quantum Antiferromagnets"Prog. Theor. Phys. Suppl.. No.145. 125-129 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, Y.Hasegawa: "Magnetization plateau in the spin ladder with the four-spin exchange"Phys. Rev. B. 60. 48-58 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, S.Yamamoto: "Critical Behavior of Anisotropic Heisenberg Mixed-Spin Chains in a Field"Phys. Rev. B. 60. 4053-4056 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai: "Spin flop in one-dimensional quantum antiferromagnets"Phys. Rev. B. 60. 6238-6241 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Sakai: "Breakdown of a Magnetization Plateau due to Anisotropy in Heisenberg Mixed-Spin Chains"J. Phys. Condens. Matter.. 11. 5175-5186 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Sakai: "Multiplateau magnetization curves of one-dimensional Heisenberg ferrimagnets"Phys. Rev. B. 62. 3795-3800 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N.Okazaki, J.Miyoshi, T.Sakai: "Magnetization plateau in the frustrated spin ladder"J. Phys. Soc. Jpn.. 69. 37-40 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N.Okazaki, K.Okamoto, T.Sakai: "Field-Induced Spin Gaps in the Frustrated Spin Ladder"J. Phys. Soc. Jpn.. 69. 2419-2422 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, N.Okazaki, J.Miyoshi: "Frustrated spin ladder in magnetic field"Physica B. 284-288. 1603-1604 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N.Okazaki, J.Miyoshi, T.Sakai: "Magnetization plateau in the frustrated spin ladder"Physica B. 281&282. 659-660 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, S.Yamamoto: "Magnetization plateau in one-dimensional quantum ferrimagnets"Prog. Theor. Phys. Suppl.. No.138. 513-514 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, N.Okazaki: "Magnetic properties of frustrated spin ladder"J. Appl. Phys.. 87. 5893-5895 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Fukui, T.Sakai: "Characterization of ferrimagnetic Heisenberg chains according to the constituent spins"Eur. Phys. J. B. 15. 211-219 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, O.Cepas, T.Ziman: "T. Sakai, O. Cepas and T. Ziman"J. Phys. Soc. Jpn.. 69. 3521-3524 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai: "Field-induced long-range order in the S=1 antiferromagnetic chain"Phys. Rev. B. 62. R9241-R9243 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, S.Yamamoto: "Coexistent quantum and classical aspects of magnetization plateaux in alternating spin chains"J. Phys.: Condens. Matter.. 12. 9787-9797 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, O.Cepas, T.Ziman: "Selection Rule of ESR for Spin Gap Systems"Physica B. 294-295. 26-29 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Okamoto, N.Okazaki, T.Sakai: "Magnetization Plateau of an S=1 Spin Ladder"J. Phys. Soc. Jpn.. 70. 636-639 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, S.Yamamoto: "Quantum Magnetization Plateaux in Ferrimagnetic Spin Chains"J. Magn. Magn. Mat.. 226-230. 645-646 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai: "Field-induced transition of the Haldane antiferromagnets"J. Appl. Phys.. 89. 7195-7197 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Nakanishi, S.Yamamoto, T.Sakai: "Low-Temperature Properties of Quasi-One-Dimensional Molecule-Based Ferromagnets"J. Phys. Soc. Jpn.. 70. 1380-1389 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A.Nakasu, K.Totsuka, Y.Hasegawa, K.Okamoto, T.Sakai: "Field-induced gap due to four-spin exchange in a spin ladder"J. Phys.: Condens. Matter.. 13. 7421 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai: "Electron spin resonance absorption from the ground state of gapped spin systems"phys. stat. sol. (a). 189. 1063-1068 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N.Okazaki, K.Okamoto, T.Sakai: "Magnetization plateau in the S=1 spin ladder with competing interactions"J. Phys. Chem. Solid. 63. 1445-1458 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Okamoto, N.Okazaki, T.Sakai: "Mechanism for non-trivial magnetization plateaux of an S=1 frustrated spin ladder"J. Phys. Soc. Jpn. suppl.. (to appear).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, N.Okazaki, T.Ohnishi, S.Takemura: "ESR selection rules for direct transition of spin gap"Basic and Applications to Material, Life and Earth Sciences, edited by A. Kawamori, J. Yamauchi and H. Ohta. 54-58 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Sakai, A.Koga: "Quantum Phase Competition in Antiferromagnetic Spin-1 Ladders"Prog. Theor. Phys. Suppl.. No.1452. 176-181 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] O.Cepas, T.Sakai, T.Ziman: "Dynamics, Selection Rules and Dzyaloshinski-Moriya Interaction in Strongly Frustrated Magnets"Prog. Theor. Phys. Suppl.. No.145(to appear). 43-51 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Sakai, A.Koga: "Re-Entrant Quantum Phase Transitions in Antiferromagnetic Spin-1 Ladders"J. Phys. Soc. Jpn.. 71. 1250-1253 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, K.Okamoto: "Quantum magnetization plateaux of an anisotropic ferrimagnetic chain"Phys. Rev. B. 65. 214403-1-214403-6 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.E.Boos, V.E.Korepin, Y.Nishiyama, M.Shiroishi: "Quantum Correlations and number theory"J. Phys. A : Math. Gen.. 35. 4443-4451 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Hagiwara, Y.Narumi, K.Kindo, M.Kohno, H.Nakano, R.Sato, M.Takahashi: "Magnetic properties of spin-1 antiferromagnetic chains with bond alternation"RIKEN Review. 46. 14-17 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi: "Thermodynamics of One-Dimensional Solvable Models"Cambridge University Press. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Muramoto and M. Takahashi: "Integrable Magnetic Model of Two Chains Coupled by Four-Body Interactions"J. Phys. Soc. Jpn.. 68. 2098-2164 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi: "Thermodynamics of One-Dimensional Solvable Models"Cambridge University Press. (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yuko Hosokoshi, Yasuhiro Nakazawa, Katsuya Inoue, Koichi Takizawa, Hiroki Nakano, Minoru Takahashi and Tsuneaki Goto: "Magnetic properties of low-dimensional quantum spin systems made of stable organic biradicals PNNNo, F2 PNNNO, and PIMNO"Phys. Rev. B. 60. 12924-12932 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai and M. Takahashi: "Metamagnetism of antiferromagnetic $XXZ$ quantum spin chains"Phys. Rev. B. 60. 7295-7298 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi: "Simplification of thermodynamic Bethe-ansatz equations, cond-mat/0010486. P299-304, Physics arid Combinatrix, Proceeding of the Nagoya 2000 International Workshop"Simplification of thermodynamic Bethe-ansatz equations. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi, Masahiro Shiroishi and Andreas Kluemper: "Equivalence of TBA and QTM"J. Phys. A. Math. Gen.. 34. L187-L194 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Hagiwara, Y. Narumi, K. Kindo, N. Maeshima, K. Okunishi, T. Sasaki, M. Takahashi: "High-field magnetization of an $S={1\over 2}$ zigzag chain compound(N2 H5)CuCl3"Physica B. 294-295. 83-86 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Masahiro Shiroishi, Minoru Takahashi, and Yoshihiro Nishiyama: "Emptiness Formation Probability for the One-Dimensional Isotropic XY model"J. Phys. Soc. Jpn.. 70. 3535-3543 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Minoru Takahashi, and Masahiro Shiroishi: "Thermodynamic Bethe ansatz equations of one-dimensional Hubbard model and high temperature expansion"Phys. Rev. B. 65. 165104-1-1651049 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Masahiro Shiroishi, and Minoru Takahashi: "Integral Equation Generates High-Temperature Expansion of the Heisenberg Chain"Phys. Rev. Letters. 89. 117201-1-4 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Nakamura, A. Kitazawa and K. Nomura: "Spin-Gap Phases in Tomonaga-Luttinger Liquids"Phys. Rev. B. 60. 7850-7862 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Nakamura: "Mechanism of CDW-SDW Transition in One Dimension"J. Phys. Soc. Jpn. 68. 3123-3126 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai and S. Yamamoto: "Magnetization plateau in one-dimensional quantum ferrimagnets"Theor. Phys. Suppl.. No.138. 513-514 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai and N.Okazaki: "Magnetic properties of frustrated spin ladder"J. Appl. Phys.. 87. 5893-5895 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Fukui and T.Sakai: "Characterization of ferrimagnetic Heisenberg chains according to the constituent spins"Eur. Phys. J. B. 15. 211-219 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai, O. Cepas and T. Ziman: J. Phys. Soc. Jpn.. 69. 3521-3524 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai: "Field-induced long-range order in the S=1 antiferromagnetic chain"Phys. Rev. B. 62. R9241-9243 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai and S.Yamamoto: "Coexistent quantum and classical aspects of magnetization plateauxin alternating spin chains"J. Phys. : Concens. Matter. 12. 9787-9797 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, O. Cepas and T.Ziman: "Selection Rule of ESR for Spin Gap Systems"Physica B. 249-295. 26-29 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Okamoto, N.Okazaki and T.Sakai: "Magnetization Plateau of an $S=1$ Spin Ladder"J. Phys. Soc. Jpn. 70. 636-639 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai and S. Yamamoto: "Quantum Magnetization Plateaux in Ferrimagnetic Spin Chains"J. Magn. Magn. Mat.. 226-230. 645-646 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai: "Field-induced transition of the Haldane antiferromagnets"J. Appl. Phys.. 89. 7195-7197 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Nakanishi, S. Yamamoto and T. Sakai: "Low-Temperature Properties of Quasi-One-Dimensional Molecule-Based Ferromagnets"J. Phys. Soc. Jpn.. 70. 1380-1389 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A. Nakasu, K. Totsuka, Y. Hasegawa, K. Okamoto and T. Sakai: "Field-induced gap due to four-spin exchange in a spin ladder"J. Phys. : Condens. Matter. 13. 7421 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai: "Electron spin resonance absorption from the ground state of gapped spin systems"phys. Stat. sol. (a). 189. 1063-1068 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] A.Kluemper, J.R.Reyes Martinez, C.Scheeren, M.Shiroishi: "The 1/2-XXZ spin-chain at finite magnetic field : Crossover phenomena driven by temperature"J. Stat. Phys.. 102. 937-951 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Nakamura, K.Itoh: "Role of Bond-Bond Interaction in the Extended Hubbard Chain"J. Phys. Soc. Jpn.. 70. 3660-3612 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K.Itoh, M.Nakamura and N.Muramoto: "Exact Bond-Located Spin Ground State in the Hubbard Chain with Off Diagonal Coulomb Interactions"J. Phys. Soc. Jpn.. 70. 1202-1205 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai and M.Takahashi: "Spin Flop in 1D Quantum Antiferromagnets"Prog. Theor. Phys. Suppl.. No.145. 125-129 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai and Y.Hasegawa: "Magnetization plateau in the spin ladder with the fou〓spin exchange"Phys. Rev. B. 60. 48-51 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai and S.Yamamoto: "Critical Behavior of Anisotropic Heisenberg MixedSpin Chains in a Field"Phys. Rev. B. 60. 4053-4056 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai: "Spin flop in one-dimensional quantum antiferromagnets"Phys. Rev. B. 60. 6238-6241 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto and T.Sakai: "Breakdown of a Magnetization Plateau due to Anisotropy in Heisenberg Mixed-Spin Chains"J. Phys. Condens. Matter.. 11. 5175-5186 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto and T.Sakai: "Multiplateau magnetization curves of one-dimensional Heisenberg ferrimagnets"Phys. Rev. B. 62. 3795-3800 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Okazaki, J. Miyoshi and T. Sakai: "Magnetization plateau in the frustrated spin ladder"J. Phys. Soc. Jpn.. 69. 37-40 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Okazaki, K. Okamoto and T. Sakai: "Field-Induced Spin Gaps in the Frustrated Spin Ladder"J. Phys. Soc. Jpn.. 69. 2419-2422 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T.Sakai, N.Okazaki and J.Miyoshi: "Frustrated spin ladder in magnetic field"Physica B. 284-288. 1603-1604 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Okazaki, J. Miyoshi and T. Sakai: "Magnetization plateau in the frustrated spin ladder"Physica B. 281&282. 659-660 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] N. Okazaki, K. Okamoto and T. Sakai: "Magnetization plateau in the S=1 spin ladder with competing interactions"J. Phys. Chem. Solid. 63. 1445-1458 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] K. Okamoto, N. Okazaki and T. Sakai: "Mechanism for non-trivial magnetization plateaux of an S=1 frustrated spin ladder"J. Phys. Soc. Jpn. Suppl.. to appear.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Sakai and A.Koga: "Quantum Phase Competition in Antiferromagnetic Spin-1 Ladders"Prog. Theor. Phys. Suppl.. No.145. 176-181 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] O.Cepas, T.Sakai and T.Ziman: "Dynamics, Selection Rules and Dzyaloshinski-Moriya Interaction in Strongly Frustrated Magnets"Prog. Theor. Phys. Suppl.. No.145, to appear. 43-51 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] S.Yamamoto, T.Sakai and A.Koga: "Re-Entrant Quantum Phase Transitions in Antiferromagnetic Spin1 Ladders"J. Phys. Soc. Jpn.. 71. 1250-1253 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai and K. Okamoto: "Quantum magnetization plateaux of an anisotropic ferrimagnetic chain"Phys. Rev. B. 65. 214403-1-6 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] H.E. Boos, V.E. Korepin, Y. Nishiyama and M. Shiroishi: "Quantum Correlations and number theory"J. Phys. A : Math. Gen.. 35. 4443-4451 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M. Hagiwara, Y. Narumi, K. Kindo, M. Kohno, H. Nakano, R. Sato and M.Takahashi: "Magnetic properties of spin-1 antiferromagnetic chains with bond alternation"RIKEN Review. 46. 14-17 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] T. Sakai, N. Okazaki, T. Ohnishi and S. Takemura, edited by A. Kawamori, J.Yamauchi and H. Ohta: "Basic and Applications to Material, Life and Earth, ESR selection rules for direct transition of spin gap"Sciences. 54-58 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] M.Takahashi, M.Shiroishi, A.Klumper: "Equivalence of TBA and QTM"J. Phys. A.. 34. L187-L194 (2001)

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      2001 Annual Research Report
  • [Publications] M.Hagiwara, et al.: "High-field magnetization of an s=1/2 zigzag chain Compound (N_2 H_5) CuCl_3"Physica B. 294-295. 83-86 (2001)

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      2001 Annual Research Report
  • [Publications] T.Sakai, O.Cepas, T.Ziman: "Selection Rule of ESR for Spin Gap Systems"Physica B. 294-295. 26-29 (2001)

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      2001 Annual Research Report
  • [Publications] M.Shiroishi, M.Takahashi, Y.NishiYama: "Emptiness Formation Probability for the One-Dimensional Isotropic XY Model"J. Phys. Soc. Jpn. 70. 3535-3543 (2001)

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      2001 Annual Research Report
  • [Publications] T.Sakai: "Field-induced transition of the Haldane antiferromagnets"J. Appl. Phys.. 89. 7195-7197 (2001)

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      2001 Annual Research Report
  • [Publications] T.Sakai: "Stripes due to the next-nearest neighbor exchange in high Tc cuprates"Phys. Rev. B. 63. 140509 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] A.Klumper et.al: "The spin-1/2 XXZ chain at Finite Magnetic Field"J.Stat.Phys. 102. 937-951 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Sakai,N.Okazaki and J.Miyoshi: "Frustrated spin ladder in magnetic field"Physica B. 284-288. 1603-1604 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Sakai and S.Yamamoto: "Magnetization plateau in one-dimensional quantum ferrimagnets"Prog.Theor.Phys.. Suppl.No.138. 513-514 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] T.Sakai and N.Okazaki: "Magnetic properties of frustrated spin ladder"J.appl.Phys.. 87. 5893-5895 (2000)

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      2000 Annual Research Report
  • [Publications] S.Yamamoto et al: "Characterization of ferrimagnetic Heisenberg chains according to the constituent spins"Eur.Phys.J.B. 15. 211-219 (2000)

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      2000 Annual Research Report
  • [Publications] M.Takahashi: "Simplification of Thermodynamic Bethe-Ansatz Equations"Proceedings of Nagoya 2000 Workshop on Physics and Combinatrics.

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      2000 Annual Research Report
  • [Publications] T.Sakai,M.Takahashi: "Metamagnetism of Antiferromagnetic XXZ quantum spin chains"Phys.Rev.B. 60. 7295-7298 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] N.Muramoto,M.Takahasi: "Integrable Magnetic Model of two chains coupled by four-body interactions"J.Phys.Soc.Jpn.. 68. 2098-2164 (1999)

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      1999 Annual Research Report
  • [Publications] Y.Hosokoshi et.al.: "Magnetic properties of low-dimensional quantum spin systems made of stable organic biradicals"Phys.Rev.B. 60. 12924-12932 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Sakai,Y.Hasegawa: "Magnetization plateau in the spin ladder with the four-spin exchange"Phys.Rev.B. 60. 48-51 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Sakai,S.Yamamoto: "Critical Behavior of Anisotropic Heisenberg Mixed-Spin Chains in a Field"Phys.Rev.B. 60. 4053-4056 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] T.Sakai: "Spin flop in one-dimensional quantum antiferromagnets"Phys.Rev.B. 60. 6238-6241 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Takahashi: "Thermodynamics of OneーDimensional solvable models"Cambridge University Press. 270 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2020-05-15  

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