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Papers of Consensed-Matter Theory Group

Recent publications

1. Orbital-Dependent Two-Band Superconductivity in MgB2
Authors: Takashi Yanagisawa and Hajime Shibata
Journal: J. Phys. Soc. Jpn. 72, 1619-1622 (2003).


2. Superconductivity in Sr2RuO4 Mediated from Coulomb Scattering
Authors: Shigeru Koikegami, Yoshida Yoshida and Takashi Yanagisawa
Journal: Phys. Rev. B67, 134517 (2003).


3. Lattice distortions, incommensurability and stripes in high-Tc cuprates
Authors: T. Yanagisawa, M. Miyazaki, S. Koike, S. Koikegami, and K. Yamaji
Journal: Phys. Rev. B67, 132408 (2003). [PDF]


4. Possible coexistence of superconductivity and static SDW stripes in the two-dimesnional Hubbard model
Authors: Mitake Miyazaki, Kunihiko Yamaji, Takashi Yanagisawa
Journal: J. Phys. Chem. Solids 63, 1403-1407 (2002).


5. Stripes and superconductivity in high-Tc superconductors
Authors: Takashi Yanagissawa, Soh Koike, Mitake Miyazaki, Kunihiko Yamaji
Journal: J. Phys. Chem. Solids 63, 1379-1383 (2002)


6. Theory of Multiband Superconductivity
Authors: Jun Kondo
Journal: J. Phys. Soc. Jpn. 71, 1353 (2002).


7. Electronic structure of superconducting compounds h-ZrRuX (X=P,As,Si)
Authors: Izumi Hase
Journal: Phys. Rev. B65, 174507 (2002).


8. Stripe formation in high-Tc superconductors
Authors: T. Yanagisawa, S. Koike, M. Miyazaki and K. Yamaji
Journal: J. Phys.: Condensed Matter 14, 21 (2002) .


9. Quantum Interference Oscillation in DHvA Effect in the Two- and Three-dimensional Systems
Authors: K. Kishigi, Y. Hasegawa and T. Yanagisawa
Journal: J. Phys. Soc. Jpn. 71 Suppl. 214-216 (2002).

Full Text[ PDF]

10. Superconducting gap of the 2D d-p model with a small Ud
Authors: S. Koikegami and T. Yanagisawa
Journal: J. Phys. Soc. Jpn. 70, 3499 (2001), J. Phys. Soc. Jpn. 71, 671 (2002).


11. de Haas-van Alphen Effect in the Two-Dimensional and Quasi-Two-Dimensional Systems
Authors: K. Kishigi and Y. Hasegawa
Journal: cond-mat0110045


12. Ground state of the three-band Hubbard model
Authors: T. Yanagisawa, S. Koike and K. Yamaji
Journal: Phys. Rev. B64, 184509 (2001). Full Text [ PDF]


13. Anisotropic optical conductivity of Nd_{2-x}Ce_xCuO_4 thin films
Authors: T. Yanagisawa, S. Koikegami, H. Shibata, S. Kimura, S. Kashiwaya, A. Sawa, N. Matsubara and K. Takita
Journal: Journal of the Physical Society of Japan 70, 2833 (2001).

Abstract Full Text [ PDF ]


14. Nesting properties and anomalous band effect in MgB2
Authors: I. Hase and K. Yamaji
Journal: Journal of the Physical Society of Japan 70, 2376 (2001).


15. Two-Band-Type Superconducting Instability in MgB2
Authors: K. Yamaji
Journal: Journal of the Physical Society of Japan 70, 1476 (2001).


16. Coexistence States of Charge Density Waves and Spin Density Waves in the One-Dimensional Extended Hubbard Model for the Arbitrary Electron Filling
Authors: K. Kishigi
Journal: Journal of the Physical Society of Japan 70,784 (2001).


17. Superconducting and SDW condensation energies in the 2D Hubbard model and the meaning to the stripe phase
Authors: K. Yamaji, T. Yanagisawa, S. Koike
Journal: Journal of Physics and Chemistry of Solids 62, 237-241 (2001)

Abstract Full Text [ PDF ]


18. Supeconductivity of the 2D Hubbard Model with a small U
Authors: Jun Kondo
Journal: Bulletin of Electrotechnical Laboratory 64, 67 (2002).
J. Phys. Soc. Jpn. 70, 808 (2001)


19. Competition between Supeconductivity and SDW in the 2D Hubbard Model and Possibility of Superconductivity along a Stripe
Authors: K. Yamaji, T. Yanagisawa, S. Koike and M. Miyazaki
Journal: Physics in Local Lattice Distortions edited by A. Bianconi and H. Oyanagi (AIP, New York, 2001) p p.222-

Abstract

20. Superconducting condensation energy of the two-chain Hubbard model in the bulk limit
Authors: S. Koike, K. Yamaji and T. Yanagisawa
Journal: J. Phys. Soc. Jpn. 69, 2199-2208 (2000)

Abstract

21. SDW and d-Wave States in the CuO2 Model by Variational Monte Carlo Simulations
Authors: T. Yanagisawa, S. Koike and K. Yamaji
Journal: Physica B281, 933 (2000): Full Text [ PDF(SCES-Nagano) ]


22. Bulk limit of superconducting condensation energy in 2D Hubbard model
Authors: K. Yamaji, T. Yanagisawa and S. Koike
Journal: Physica B284 , 415 (2000): Full Text [ PDF]


23. Phase diagram of the CuO model in the oxide superconductors - Variational Monte Carlo study -
Authors: T. Yanagisawa, S. Koike and K. Yamaji
Journal: Physica B284 , 467 (2000): Full Text [ PDF]


24. d-wave state with multiplicative correlation factors for the Hubbard model
Authors: T. Yanagisawa, S. Koike and K. Yamaji
Journal: J. Phys. Soc. Japan 68, 3608 (1999): Full Text [ PDF]


25. Effect of the Medium-Range Transfer Energies to the Superconductivity in the Two-Chain Hubbard Model
Authors: S. Koike, K. Yamaji and T. Yanagisawa
Journal: J. Phys. Soc. Japan 68 (1999) 1657.


26. Wave functions of correlated electron state in the periodic Anderson model
Authors: T. Yanagisawa
Journal: J. Phys. Soc. Japan 68 (1999) 893

Abstract Full Text [ PDF]


27. Superconductivity of Quasi-One- and Quasi-Two-Dimensional Tight-Binding Electrons in a Magnetic Field
Authors: Mitake Miyazaki, K. Kishigi and Y. Hasegawa
Journal: J. Phys. Soc. Japan 67 (1999) 2618-2621

Abstract Full Text [ PDF]

28. Restoration of Superconductivity in High Parallel Magnetc Fields in Layered Superconductors
Authors: A.G. Lebed and K. Yamaji
Journal: Phys. Rev. Lett. 80, 2697-2700 (1998)

Abstract Full Text [ PDF]


29. Exact-diagonalization study on the effect of the long-range Coulomb interaction to the superconducting ground state in two-chain Hubbard model
Authors: S. Koike, K. Yamaji and T. Yanagisawa
Journal: Physica C308 (1998) 301

Abstract Full Text [ PDF ]


30. Off-Diagonal Wave Function Monte Carlo Studies of Hubbard Model I
Authors: T. Yanagisawa, S. Koike and K. Yamaji
Journal: J. Phys. Soc. Jpn. 67 (1998) 3867

Abstract Full Text [ PDF PS ]


31. Variational Monte Carlo Study on the Superconductivity in the Two-Dimensional Hubbard Model
Authors: K. Yamaji, T. Yanagisawa, T. Nakanishi and S. Koike
Journal: Physica C304 (1998) 225

Abstract Full Text [ PDF ]


32. Variational Monte Carlo Indications of d-Wave Superconductivity in the Two-Dimensional Hubbard Model
Authors: T. Nakanishi, K. Yamaji and T. Yanagisawa
Journal: J. Phys. Soc. Jpn. 66 (1997) 294.

Abstract Full Text [ PDF ]


33. Superconductivity in the Two-Chain Hubbard Model Including the Interchain Coulomb Interaction
Authors: S. Koike and K. Yamaji
Journal: J. Phys. Soc. Jpn. 65, 327 (1996)

Abstract Full Text [ PDF ]


34. Crossover and Order-Disorder Transition of Two-Dimensional Quantum Antiferromagnets at Low Temperatures
Authors: T. Yanagisawa
Journal: Phys. Rev. Lett. 68, 1026 (1992)

Abstract Full Text [ PDF ]


Japanese articles

  • 『d-pモデルにおける反強磁性秩序とストライプ』
    （2000年日本物理学会講演概要） Full Text [ PDF PS ]


  • 『2D d-pモデルにおけるストライプと非一様スピン密度波II』
    （2000年秋日本物理学会講演概要） Full Text [ PDF PS ]