原著論文
  1. The resonating SDW solitons and breathers in the one dimensional Hubbard model.
    S. Yamamoto, A. Takahashi and H. Fukutome:
    Synth. Met. 43, 3705-3708 (1991).

  2. Broken symmetry instabilities and solutions of the extended Hubbard model.
    M. Ozaki and S. Yamamoto:
    Physica C 185-189, 1727-1728 (1991).

  3. Resonating Hartree-Fock theory of the one dimensional Hubbrd model I. Quantum fluctuations by SDW solitons and breathers.
    S. Yamamoto, A. Takahashi and H. Fukutome:
    J. Phys. Soc. Jpn. 60, No. 10, 3433-3448 (1991).

  4. Superpolaron model for metallic polyacetylene.
    A. Takahashi, S. Yamamoto and H. Fukutome:
    J. Phys. Soc. Jpn. 61, No. 1, 199-216 (1992).

  5. Resonating Hartree-Fock theory of a one dimensional electronic system.
    S. Yamamoto, A. Takahashi and H. Fukutome:
    Synth. Met. 49, 239-243 (1992).

  6. Resonating Hartree-Fock theory of a one dimensional electronic system.
    S. Yamamoto, A. Takahashi and H. Fukutome:
    Mol. Cryst. Liq. Cryst. 216, 145-150 (1992).

  7. Non-magnetic broken symmetry solutions of the three-band extended Hubbard model.
    S. Yamamoto and M. Ozaki:
    Solid State Commun. 83, No. 5, 329-334 (1992).

  8. Magnetic broken symmetry solutions of the three-band extended Hubbard model.
    S. Yamamoto and M. Ozaki:
    Solid State Commun. 83, No. 5, 335-341 (1992).

  9. Resonating Hartree-Fock theory of the one dimensional Hubbard model II. Breather fluctuations in the strong correlation regime.
    S. Yamamoto and H. Fukutome:
    J. Phys. Soc. Jpn. 61, No. 9, 3209-3219 (1992).

  10. Broken symmetry solutions of the two dimensional extended Hubbard model and their instability conditions.
    S. Yamamoto and M. Ozaki:
    Int. J. Quantum Chem. 44, No. 6, 949-983 (1992).

  11. Thermodynamic properties of S = 1 antiferromagnetic Heisenberg chains.
    S. Miyashita and S. Yamamoto:
    J. Phys. Soc. Jpn. 62, No. 5, 1459-1462 (1993).

  12. Orbital optimization in the resonating Hartree-Fock approximation and its application to the one dimensional Hubbard model.
    A. Ikawa, S. Yamamoto and H. Fukutome:
    J. Phys. Soc. Jpn. 62, No. 5, 1653-1668 (1993).

  13. Effects of edges in S = 1 Heisenberg antiferromagnitic chains.
    S. Miyashita and S. Yamamoto:
    Phys. Rev. B 48, No. 2, 913-919 (1993).

  14. Broken symmetry solutions of the three-band extended Hubbard model.
    S. Yamamoto and M. Ozaki:
    Physica B 186-188, 907-909 (1993).

  15. Quantum fluctuations to destroy the antiferromagnetic spin order in the one dimensional half filled Hubbard model.
    A. Ikawa, S. Yamamoto and H. Fukutome:
    Mol. Cryst. Liq. Cryst. 233, 81-88 (1993).

  16. Thermodynamic properties of S = 1 antiferromagnetic Heisenberg chains as Haldane systems.
    S. Yamamoto and S. Miyashita:
    Phys. Rev. B 48, No. 13, 9528-9538 (1993).

  17. World-line Monte Carlo study of the dispersion relation of an S = 1 antiferromagnetic Heisenberg chain.
    S. Yamamoto and S. Miyashita:
    J. Phys. Soc. Jpn. 63, No. 8, 2866-2869 (1994).

  18. Anisotropy effects on magnetic properties of an S = 1 antiferromgnetic Heisenberg chain.
    S. Yamamoto and S. Miyashita:
    Phys. Rev. B 50, No. 9, 6277-6288 (1994).

  19. Ground state properties of S = 1 antiferromagnetic Heisenberg chains with bond alternation.
    S. Yamamoto:
    J. Phys. Soc. Jpn. 63, No. 12, 4327-4330 (1994).

  20. Magnetization of S = 1 antiferromagnetic Heisenberg chains.
    S. Yamamoto and S. Miyashita:
    Phys. Rev. B 51, No. 6, 3649-3654 (1995).

  21. Quantum fluctuations in the one dimensional Hubbard model with a less than half filling.
    S. Yamamoto, A. Ikawa and H. Fukutome:
    Synth. Met. 69, No. 1-3, 709-710 (1995).

  22. Elementary excitations of S = 1 antiferromagnetic Heisenberg chains with bond alternation.
    S. Yamamoto:
    Phys. Rev. B 51, No. 22, 16128-16134 (1995).

  23. Critical exponent η in S = 1 antiferromagnetic Heisenberg chains with alternating interaction.
    S. Yamamoto:
    Phys. Rev. B. 52, No. 14, 10170-10176 (1995).

  24. Quantum-classical crossover in temperature dependence of the magnetic susceptibility of Haldane system.
    S. Yamamoto:
    J. Phys. Soc. Jpn. 64, No. 10, 4051-4052 (1995).

  25. Quantum Monte Carlo approach to elementary excitations of antiferromagnetic Heisenberg chains.
    S. Yamamoto:
    Phys. Rev. Lett. 75, No.18, 3348-3351 (1995).

  26. Thermodynamic properties of S = 2 antiferromagnetic Heisenberg chains.
    S. Yamamoto:
    Phys. Rev. B. 53, No.6, 3364-3373 (1996).

  27. Spin correlations and Haldane gap in the S = 2 antiferromagnetic Heisenberg chain.
    S. Yamamoto:
    Phys. Lett. A. 213, No. 1-2, 102-106 (1996).

  28. Reply to Comment on "Quantum Monte Carlo approach to elementary excitations of antiferromagnetic Heisenberg chains".
    S. Yamamoto:
    Phys. Rev. Lett. 77, No. 13, 2844-2844 (1996).

  29. Quantum fluctuations in the ground state of the S = 1 antiferromagnetic Heisenberg chain.
    S. Yamamoto:
    Phys. Lett. A. 225, No. 1-3, 157-166 (1997).

  30. Matrix-product-states approach to the Heisenberg ferrimagnetic spin chains.
    A. K. Kolezhuk, H.-J. Mikeska and S. Yamamoto:
    Phys. Rev. B. 55, No. 6, R3336-R3339 (1997).

  31. Phase transitions in antiferromagnetic quantum spin chains with bond alternation.
    S. Yamamoto:
    Phys. Rev. B. 55, No. 6, 3603-3612 (1997).

  32. Low-temperature properties of quantum antiferromagnetic chains with alternating spins S = 1 and S = 1/2.
    S. Brehmer, H.-J. Mikeska and S. Yamamoto:
    J. Phys.: Condens. Matter 9, No. 19, 3921-3930 (1997).

  33. An efficient Monte Carlo approach to low-lying excitations of quantum spin chains.
    S. Yamamoto:
    Int. J. Mod. Phys. C. 8, No. 3, 609-634 (1997).

  34. Low-lying excitations in the S = 1 antiferromagnetic Heisenberg chain.
    S. Yamamoto and S. Miyashita:
    Phys. Lett. A 235, No. 5, 545-550 (1997).

  35. Elementary excitations of Heisenberg ferrimagnetic spin chains.
    S. Yamamoto, S. Brehmer and H.-J. Mikeska:
    Phys. Rev. B 57, No. 21, 13610-13616 (1998).

  36. Thermodynamic properties of Heisenberg ferrimagnetic spin chains:
    Ferromagnetic-antiferromagnetic crossover.
    S. Yamamoto and T. Fukui:
    Phys. Rev. B 57, No. 22, R14008-R14011 (1998).

  37. Breakdown of the spin-1 Haldane phase via quantum fluctuations.
    S. Yamamoto:
    Int. J. Mod. Phys. B 12, No. 18, 1795-1808 (1998).

  38. Thermodynamics of the (1, 1/2) ferrimagnet in finite magnetic fields.
    K. Maisinger, U. Schollw\"ock, S. Brehmer, H.-J. Mikeska and S. Yamamoto:
    Phys. Rev. B 58, No. 10, R5908-R5911 (1998).

  39. Novel density-wave states of two-band Peierls-Hubbard chains.
    S. Yamamoto:
    Phys. Lett. A 247, No. 6, 422-434 (1998).

  40. Low-energy structure of Heisenberg ferrimagnetic spin chains.
    S. Yamamoto and T. Sakai:
    J. Phys. Soc. Jpn. 67, No. 11, 3711-3714 (1998).

  41. Combination of ferromagnetic and antiferromagnetic features in Heisenberg ferrimagnets.
    S. Yamamoto, T. Fukui, K. Maisinger and U. Schollw\"ock:
    J. Phys.: Condens. Matter 10, No. 48, 11033-11048 (1998).

  42. Magnetic properties of quantum ferrimagnetic spin chains.
    S. Yamamoto:
    Phys. Rev. B 59, No. 2, 1024-1027 (1999).

  43. Ground-state properties of the two-band model for halogen-bridged metal complexes.
    S. Yamamoto:
    Synth. Met. 103, No. 1-3, 2683-2686 (1999).

  44. Breakdown of a magnetization plateau due to anisotropy in Heisenberg mixed-spin chains.
    S. Yamamoto and T. Sakai:
    J. Phys.: Condens. Matter 11, No. 26, 5175-5186 (1999).

  45. Broken-symmetry ground states of halogen-bridged binuclear metal complexes.
    S. Yamamoto:
    Phys. Lett. A 258, No. 2-3, 183-187 (1999).

  46. Critical behavior of anisotropic Heisenberg mixed-spin chains.
    T. Sakai and S. Yamamoto:
    Phys. Rev. B 60, No. 6, 4053-4056 (1999).

  47. Simulated nuclear spin-lattice relaxation in Heisenberg ferrimagnets: Indirect observation of quadratic dispersion relations.
    S. Yamamoto:
    Phys. Rev. B 61, No.2, R842-R845 (2000).

  48. Competing ground states of the new class of halogen-bridged metal complexes.
    S. Yamamoto:
    J. Phys. Soc. Jpn. 69, No. 1, 13-16 (2000).

  49. Nuclear spin relaxation in ordered bimetallic chain compounds.
    S. Yamamoto:
    Phys. Lett. A 265, No. 1-2, 139-144 (2000).

  50. Characterization of ferrimagnetic Heisenberg chains according to the constituent spins.
    S. Yamamoto, T. Fukui and T. Sakai:
    Eur. Phys. J. B 15, No. 2, 211-219 (2000).

  51. Numerical simulation of the proton spin-lattice relaxation in bimetallic chain compounds.
    S. Yamamoto:
    Prog. Theor. Phys. Suppl. 138, 84-89 (2000).

  52. Magnetization plateau in one-dimensional quantum ferrimagnets.
    T. Sakai and S. Yamamoto:
    Prog. Theor. Phys. Suppl. 138, 513-514 (2000).

  53. Modified spin-wave description of the nuclear spin relaxation in ferrimagnetic Heisenberg chains.
    S. Yamamoto:
    J. Phys. Soc. Jpn. 69, No. 7, 2324-2330 (2000).

  54. Multi-plateau magnetization curves of one-dimensional ferrimagnets.
    S. Yamamoto and T. Sakai:
    Phys. Rev. B 62, No. 6, 3795-3800 (2000).

  55. Coexistent quantum and classical aspects of magnetization plateaux in alternating-spin chains.
    T. Sakai and S. Yamamoto:
    J. Phys.: Condens. Matter 12, No. 47, 9787-9797 (2000).

  56. Significance of the direct relaxation process in the low-energy spin dynamics of a one-dimensional ferrimagnet NiCu(C7H6N2O6)(H2O)3・2H2O.
    S. Yamamoto:
    Solid State Commun. 117, No. 1, 1-5 (2001).

  57. Characterization of halogen-bridged binuclear metal complexes as hybridized two-band materials.
    S. Yamamoto:
    Phys. Rev. B 63, No. 125124, 1-16 (2001).

  58. Quantum and thermal phase transitions of halogen-bridged binuclear transition-metal complexes.
    S. Yamamoto:
    J. Phys. Soc. Jpn. 70, No. 5, 1198-1201 (2001).

  59. Low-temperature properties of quasi-one-dimensional molecule-based ferromagnets.
    T. Nakanishi, S. Yamamoto and T. Sakai:
    J. Phys. Soc. Jpn. 70, No. 5, 1380-1389 (2001).

  60. Proton spin relaxation in ordred bimetallic chain compounds.
    S. Yamamoto:
    Synth. Met. 121, No. 3, 1782-1783 (2001).

  61. Quantum magnetization plateaux in ferrimagnetic spin chains.
    T. Sakai and S. Yamamoto:
    J. Mag. Mag. Mat. 226, No. 1, 645-646 (2001).

  62. Pressure-induced phase transitions of halogen-bridged binuclear metal complexes R4[Pt2(P2O5H2)4X] ・n H2O.
    S. Yamamoto:
    Phys. Rev. B 64, No. 14, 140102(R), 1-4 (2001).

  63. Soliton excitations in halogen-bridged mixed-valence binuclear metal complexes.
    S. Yamamoto and M. Ichioka:
    J. Phys. Soc. Jpn. 71, No. 1, 189-196 (2002).

  64. Pressure-induced reverse Peierls and Peierls instabilities in halogen-bridged binuclear metal complexes.
    S. Yamamoto:
    J. Phys. Chem. Solids 63, No. 6-8, 1489-1493 (2002).

  65. Quantum phase competition in antiferromagnetic spin-1 ladders.
    S. Yamamoto, T. Sakai and A. Koga:
    Prog. Theor. Phys. Suppl. 145, 176-181 (2002).

  66. Halogen-bridged binuclear metal complexes under static pressure.
    Y. Eguchi and S. Yamamoto:
    Mol. Cryst. Liq. Cryst. 379, 549-554 (2002).

  67. Solitons in quasi-one-dimensional binuclear metal complexes.
    S. Yamamoto:
    Mol. Cryst. Liq. Cryst. 379, 555-560 (2002).

  68. Re-entrant quantum phase transitions in antiferromagnetic spin-1 ladders.
    S. Yamamoto, T. Sakai and A. Koga:
    J. Phys. Soc. Jpn. 71, No. 5, 1250-1253 (2002).

  69. Intrinsic double-peak structure of the specific heat in low-dimensional quantum ferrimagnetis.
    T. Nakanishi and S. Yamamoto:
    Phys. Rev. B 65, No. 21, 214418, 1-5 (2002).

  70. Fermionic description of spin-gap states of antiferromagnetic Heisenberg ladders in a magnetic field.
    H. Hori and S. Yamamoto:
    J. Phys. Soc. Jpn. 71, No. 6, 1607-1608 (2002).

  71. Spin-wave description of nuclear spin-lattice relaxation in Mn12O12 acetate.
    S. Yamamoto and T. Nakanishi:
    Phys. Rev. Lett. 89, No. 15, 157603, 1-4 (2002).

  72. Possible nonlinear excitations in quasi-one-dimensional halgen-bridged binuclear metal complexes.
    S. Yamamoto:
    Phys. Rev. B 66, No. 16, 165113, 1-8 (2002).

  73. Pressure effects on an S = 1 Haldane compound Ni(C5H14N2)2N3(PF6).
    M. Mito, H. Akama, H. Deguchi, S. Takagi, T. Kawae, K. Takeda, M. Yamashita, H. Nakao, Y. Murakami and S. Yamamoto:
    J. Phys. Soc. Jpn. 72, No. 2, 399-404 (2003).

  74. Spin-wave description of Haldane-gap antiferromagnets.
    S. Yamamoto and H. Hori:
    J. Phys. Soc. Jpn. 72, No. 4, 769-772 (2003).

  75. Quantum and thermal phase transitions in the Bechgaard salts and their analogs.
    H. Hori and S. Yamamoto:
    Synth. Met. 135-136, 557-558 (2003).

  76. Nuclear spin-lattice relaxation in ferrimagnetic clusters and chains:
    A contrast between zero and one dimensions.
    H. Hori and S. Yamamoto:
    Phys. Rev. B 68, No. 5, 054409, 1-6 (2003).

  77. Bosonic representation of one-dimensional Heisenberg ferrimagnets.
    S. Yamamoto:
    Phys. Rev. B 69, No. 6, 064426, 1-9 (2004).

  78. Static and Dynamic Properties of Antiferromagnetic Heisenberg Ladders:
    Fermionic versus Bosonic Approaches.
    H. Hori and S. Yamamoto:
    J. Phys. Soc. Jpn. 73, No. 3, 549-552 (2004).

  79. Nuclear Magnetic Relaxation in the Haldane-Gap Antiferromagnet Ni(C2H8N2)2NO2(ClO4).
    S. Yamamoto and H. Hori:
    J. Phys. Soc. Jpn. 73, No. 4, 822-825 (2004).

  80. Spinless fermions versus spin waves in describing antiferromagnetic Heisenberg ladders.
    H. Hori and S. Yamamoto:
    J. Mag. Mag. Mat. 272-276, 269-270 (2004).

  81. Nuclear spin-lattice relaxation in one-dimensional Heisenberg ferrimagnets:
    Three-magnon versus Raman processes.
    H. Hori and S. Yamamoto:
    J. Phys. Soc. Jpn. 73, No. 6, 1453-1456 (2004).

  82. Soliton-induced optical absorption of halogen-bridged mixed-valence binuclear metal complexes.
    J. Ohara and S. Yamamoto:
    Phys. Rev. B 70, No. 11, 115112, 1-5 (2004).

  83. Nuclear magnetic relaxation in the ferrimagnetic chain compound NiCu(C7H6N2O6)(H2O)3・2H2O: Three-magnon scattering?
    H. Hori and S. Yamamoto:
    J. Phys.: Condens. Matter 16, No. 49, 9023-9029 (2004).

  84. Effects of edges in spin-1/2 bond-alternating Heisenberg chains:
    Matrix-product variational approach.
    K. Funase and S. Yamamoto:
    Phys. Lett. A 334, No. 2-3, 220-225 (2005).

  85. Photoinduced absorption spectra of halogen-bidged binuclear metal complexes:
    Possible contrast between R4[Pt2(P2O5H2)4X] ・nH2O and Pt2(CH3CS2)4I.
    J. Ohara and S. Yamamoto:
    J. Phys. Soc. Jpn. 74, No. 1, 250-253 (2005).

  86. Modified Spin-Wave Theory of Nuclear Magnetic Relaxation in One-Dimensional Quantum Ferrimagnets: Three-Magnon versus Raman Processes.
    S. Yamamoto and H. Hori:
    J. Phys. Soc. Jpn. 74, Suppl., 75-79 (2005).

  87. Transport in gapped quantum antiferromagnets.
    T. Sakai and S. Yamamoto:
    J. Phys. Soc. Jpn. 74, Suppl., 191-195 (2005).

  88. Low-temperature thermodynamics of one-dimensional alternating-spin Heisenberg ferromagnets.
    S. Yamamoto and H. Hori:
    Phys. Rev. B 72, No. 5, 054423, 1-6 (2005).

  89. Fermionic versus bosonic descriptions of one-dimensional spin-gapped antiferromagnets.
    S. Yamamoto and K. Funase:
    Low Temp. Phys. 31, No. 8, 740-747 (2005).

  90. Effects of the electron-phonon interaction on the charge ordering in quasi-one-dimensional charge-transfer salts.
    H. Hori and S. Yamamoto:
    Synth. Met. 152, No. 1-3, 409-412 (2005).

  91. Transport properties of organic spin-gapped antiferromagnets.
    T. Sakai and S. Yamamoto:
    Synth. Met. 152, No. 1-3, 477-480 (2005).

  92. Photoinduced infrared absorption of quasi-one-dimensional halogen-bridged binuclear transition-metal complexes.
    J. Ohara and S. Yamamoto:
    J. Phys. Chem. Solids 66, No. 8, 1571-1574 (2005).

  93. Nonlinear lattice relaxation of photoexcited diplatinum-halide chain compounds.
    J. Ohara and S. Yamamoto:
    Phys. Rev. B 73, No. 4, 045122, 1-7 (2006).

  94. Competing ground states of metal-halide ladders.
    K. Funase and S. Yamamoto:
    J. Phys. Soc. Jpn. 75, No. 4, 044717, 1-5 (2006).

  95. Evidence for multimagnon-mediated nuclear spin relaxation in the intertwining double-cain ferrimagnet Ca3Cu3(PO4)4.
    S. Yamamoto, H. Hori, Y. Furukawa, Y. Nishisaka, Y. Sumida, K. Yamada, K. Kumagai, T. Asano and Y. Inagaki:
    J. Phys. Soc. Jpn. 75, No. 7, 074703, 1-5 (2006).

  96. Spin dynamics in molecular ring nanomagnets: Significant effect of acoustic phonons and magnetic anisotropies.
    S. Yamamoto and T. Hikihara:
    J. Phys. Soc. Jpn. 75, No. 10, 103701, 1-4 (2006).

  97. Low-energy structure of the intertwining double-chain ferrimagnets A3Cu3(PO4)4 (A = Ca, Sr, Pb).
    S. Yamamoto and J. Ohara:
    Phys. Rev. B 76, No. 1, 014409, 1-8 (2007).

  98. Optical characterization of platinum-halide ladder compounds.
    S. Yamamoto and J. Ohara:
    Phys. Rev. B 76, No. 23, 235116, 1-8 (2007).

  99. Magnetic phase diagram of spin-1/2 two-leg ladder with four-spin ring exchanges.
    T. Hikihara and S. Yamamoto:
    J. Phys. Soc. Jpn. 77, No. 01, 014709, 1-9 (2008).

  100. Photoproduction of spin and charge carriers in halogen-bridged binuclear platinum chain complexes.
    S. Yamamoto and J. Ohara:
    J. Phys.: Condens. Matter 20, No. 41, 415215, 1-9 (2008).

  101. Optical characterization of ground states of polyacene.
    S. Yamamoto:
    Phys. Rev. B 78, No. 23, 235205, 1-7 (2008).

  102. Multichanneled relaxation of halogen-bridged diplatinum chain complexes photoexcited.
    S. Yamamoto and J. Ohara:
    Physica Status Solidi C 6, No. 1, 144-148 (2009).

  103. Optical observations of new halogen-bridged platinum complexes assembled within a ladder lattice.
    S. Yamamoto and J. Ohara:
    to be published in J. Mater. Sci.: Mater. Electron..

著書・解説

  1. Inhomogeneity effects in quantum spin systems.
    S. Miyashita, J. Behre and S. Yamamoto:
    in Quantum Monte Carlo Methods in Condensed Matter Physics, edited by M. Suzuki
    (World Scientific, Singapore, 1993) pp. 97-111.

  2. ハルデイン系としてのS = 1反強磁性ハイゼンベルグ鎖の熱力学的性質
    ―隠れた秩序状態に生ずる量子的及び熱的揺らぎ―.
    山本昌司, 宮下精二:
    素粒子論研究 88, No. 5, E63-E72 (1994).

  3. Quantum Monte Carlo studies on low dimensional spin systems.
    S. Miyashita, S. Yamamoto and T. Nakamura:
    in Computational Physics as a New Frontier in Condensed Matter Research,
    edited by H. Takayama, M. Tsukada, H. Shiba, F. Yonezawa, M. Iamada and Y. Okabe
    (The Physical Society of Japan, Tokyo, 1995) pp. 171-179.

  4. フェリ磁性混合スピン鎖の量子物性―強磁性と反強磁性の交錯―.
    山本昌司:
    固体物理 34, No. 1, 36-48 (1999).

  5. 低次元スピン波理論の新しい展開.
    山本昌司:
    固体物理 38, No. 5, 332-344 (2003).

  6. Recent Progress of the Low-Dimensional Spin-Wave Theory.
    S. Yamamoto:
    in Recent Research Developments in Physics, Vol. 4, edited by S. G. Pandalai
    (Transworld Research Network, Kerala, 2003), pp. 443-461.

  7. Three-magnon-mediated nuclear spin relaxation in quantum ferrimagnets of topological origin.
    H. Hori and S. Yamamoto:
    in Topology in Ordered Phases, edited by S. Tanda, T. Matsuyama, M. Oda, Y. Asano and K. Yakubo
    (World Scientific, Singapore, 2006), pp. 259-264.

  8. １次元で観えた多重マグノン核磁気緩和過程.
    山本昌司:
    電子スピンサイエンス学会誌 4, 秋季号, 96-103 (2006).