Kuroda Yoshihiro KURODA Yoshihiro

Articles:  1-20 of 39

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  • Comments on Superconducting Fluctuation and Transport Phenomena in a Quasi-2D Electronic System

    KOSUGE Yu , KOBAYASHI Akito , MATSUURA Tamifusa , KURODA Yoshihiro

    Sato and the present authors have developed a theory where effects of the 2D superconducting fluctuations in a weak coupling case on the Cooper pairing susceptibility χ(<B><I>q</I&g …

    Journal of the Physical Society of Japan 72(5), 1166-1174, 2003-05-15

    J-STAGE  References (26)

  • Superconductor-Insulator Transition in the d-p Model

    ARIMOTO Taijiro , OHARA Takashi , TSURUTA Atsushi , KOBAYASHI Akito , KURODA Yoshihiro

    We investigate a transition between the superconducting phase and the Mott insulator phase in the d-p model by using the slave-boson method and the 1/N-expansion theory, where the pairing interaction …

    Journal of the Physical Society of Japan 72(4), 904-910, 2003-04-15

    References (22)

  • Phase Diagram of the Electron-Doped Cuprate Superconductors

    KOBAYASHI Akito , TSURUTA Atsushi , MATSUURA Tamifusa , KURODA Yoshihiro

    We investigate the T-δ phase diagram of the electron-doped systems in high-T_c cuprates where δ is doping rate. Taking the ingap state and the superexchange interaction J_s, we calculate the supercond …

    Journal of the Physical Society of Japan 71(7), 1640-1643, 2002-07-15

    References (33)

  • Pseudogap Phenomena and Phase Diagram in the Two-Band Hubbard Model

    KOBAYASHI Akito , TSURUTA Atsushi , MATSUURA Tamifusa , KURODA Yoshihiro

    High-T<FONT SIZE="-1"><SUB>c</SUB></FONT> superconducting materials (HTSC) have anomalous properties such as the pseudogap in the Hall coefficient, 1/T<FONT SIZE="-1">< …

    Journal of the Physical Society of Japan 70(5), 1214-1217, 2001-05-15

    J-STAGE  References (30)

  • Fermi Liquid and Non-Fermi Liquid in Anderson Lattice

    TSURUTA Atsushi , KOBAYASHI Akito , MATSUURA Tamifusa , KURODA Yoshihiro

    We investigate electronic states in M-channel Anderson lattice model using expansion from the limit of large spin-orbital degeneracy N (1/N-expansion). Inclusion of the self-energy in O(N^0) Ieads to …

    Journal of the Physical Society of Japan 69(10), 3342-3355, 2000-10-15

    References (18)

  • Critical Study on 2D Superconducting Fluctuation : in a Weak Coupling Case

    SATO Hisaaki , KOSUGE Yu , KOBAYASHI Akito , MATSUURA Tamifusa , KURODA Yoshihiro

    Effects of the 2D superconducting fluctuation in a weak coupling case on the Cooper pairing susceptibility χ(q,ω) and the single particle Green's function are examined by taking account of the most di …

    Journal of the Physical Society of Japan 69(7), 2221-2228, 2000-07-15

    References (20)

  • Quadrupolar Order, Hidden Octupolar Order and Tiny Magnetic Moment in URu_2Si_2

    TSURUTA Atsushi , KOBAYASHI Akito , MATSUURA Tamifusa , KURODA Yoshihiro

    Possible orders in URu_2Si_2 are investigated using a two-channel degenerate Anderson model. The ground state of uranium ions is the non-Kramers quadrupolar doublet Γ_5 with (5f)^2, and its relevalent …

    Journal of the Physical Society of Japan 69(3), 663-666, 2000-03-15

    References (22)

  • Pseudogap Induced by Superconducting Fluctuation in the d-p Model

    KOBAYASHI Akito , TSURUTA Atsushi , MATSUURA Tamifusa , KURODA Yoshihiro

    Usitag tlae d-p nrodel, 'xve detaaozastratte Chart the psetrdogap, wltich is indtmced by tl're sttpercon-dtrctirug fltrcttratiott, plan's ke.5' roles iru tlae deteruaaira?ttion of tlae phase diagrztua …

    Journal of the Physical Society of Japan 68(8), 2506-2509, 1999-08-15

    References (32)

  • Non-Fermi Liquid in Multichannel Degenerate Anderson Lattice

    TSURUTA Atsushi , KOBAYASHI Akito , ONO Yoshiaki , MATSUURA Tamifusa , KURODA Yoshihiro

    XX7e investigate electronic states in tlae raatrlticlaarat'ael degeraer;t{,e Anderson lattice xvitla Clue aidof the 1/.V-expansion procedure. Incltusiota of' flue self-et'?ergy in OWN') leads to hetrv …

    Journal of the Physical Society of Japan 68(8), 2491-2494, 1999-08-15

    References (10)

  • Fermi Liquid in Degenerate Anderson Lattice

    TSURUTA Atsushi , KOBAYASHI Akito , DEGUCHI Ken , ONO Yoshiaki , MATSUURA Tamifusa , KURODA Yoshihiro

    We investigate the Fernai liqtrid in tlae infinite-& degenerate Anderson l?rttice trsing expansiottfrotn the linaait of' large spira-orbital degetaeracy ./V. By collectitug ?tll diagr?tnrs up to O (N …

    Journal of the Physical Society of Japan 68(4), 1067-1070, 1999-04-15

    References (16)

  • Fermi Liquid and Non-Fermi Liquid in M-Channel N Fold Degenerate Anderson Lattice :

    TSURUTA Atsushi , KOBAYASHI Akito , DEGUCHI Ken , ONO Yoshiaki , MATSUURA Tamifusa , KURODA Yoshihiro

    JJAP series 11, 168-170, 1999

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  • Superxchange Interaction in the d-p Model

    FUKAGAWA Satoshi , KOBASHI Akito , MIURA Kazuo , MATSUURA Tamifusa , KURODA Yoshihiro

    An analytic forum of' strperexchange interaction in the zmetallic phase of the d-p model simtmlating2D electronic systeuaas on CLlO2 planes of' high-'Z'. strpercondttcting znaterials is obtained by tr …

    Journal of the Physical Society of Japan 67(10), 3536-3541, 1998-10-15

    References (22)

  • Superconductivity in the d-p Model : Effects of Quasi-2D Fluctuation

    KOBAYASHI Akito , TSURUTA Atsushi , MATSUURA Tamifusa , KURODA Yoshihiro

    Bflects of qtnasi-2D flttcttrations on strpercondttcting transition utaediated by spin-fltrcttrationsvia svnperexchange interactions in the d-p taaodel are investigated based on the f'ornaalisrn first …

    Journal of the Physical Society of Japan 67(8), 2626-2629, 1998-08-15

    References (36)

  • Infrared Divergence and Non-Fermi Liquid in Multechannel Degenerate Anderson Model. II

    TSURUTA Atsushi , ONO Yoshiaki , MATSUURA Tamifusa , KURODA Yoshihiro

    In the previous studies, we examined roles of infrared divergences in pseudo-particle spectra in the impurity Anderson models with use of the expansion from the limit of the large spin-orbital degener …

    Journal of the Physical Society of Japan 67(7), 2346-2362, 1998-07-15

    J-STAGE  References (35)

  • d-Site Substitution Effects in the d-p Model

    ONO Yoshiaki , DEGUCHI Ken , MATSUURA Tamifusa , KURODA Yoshihiro

    Effects of d-site substitution in the d-p model simulating a CuO<SUB>2</SUB>-plane in high-T<SUB>c</SUB> cuprates are investigated using the slave boson technique and the 1/N-e …

    Journal of the Physical Society of Japan 67(1), 29-32, 1998-01-15

    J-STAGE  References (39)

  • Infrared divergence and Non-Fermi Liquid in Multichannel Degenerate Anderson Model

    TSURUTA Atsushi , ONO Yoshiaki , MATSUURA Tamifusa , KURODA Yoshihiro

    As a straightforward extention of the study on infrared divergences in pseudo-particle spectrain the single-channel degenerate inapurity Anderson rnodel, those of the multichannel modelare examined wi …

    Journal of the Physical Society of Japan 66(11), 3528-3535, 1997-11-15

    References (39)

  • Pairing Interaction and Superconducting Transition Temperature in the d-P Model

    AZAMI Munehiro , MATSUURA Tamifusa , KURODA Yoshihiro

    Effective pairing interaction and strpercondtrcting transition teunperature T. are investigatedon the basis of the simplest d-p model by using the auxiliary particle method together with the1/Y-expans …

    Journal of the Physical Society of Japan 66(9), 2811-2819, 1997-09-15

    References (40)

  • Transport Coefficients for Many Electron System : Comparative Study of Mori Formula and Kubo Formula

    OKADA Junichi , KURODA Yoshihiro

    By using the closed-form solution of the 1VIori forrntrla for transport coefficients obtained veryrecently, the Nlori forrntrla and the Kubo formula have been proved to be identical to eachother ['orm …

    Journal of the Physical Society of Japan 66(9), 2790-2797, 1997-09-15

    References (14)

  • Infrared Divergence in Pseudo-Particle Spectra

    MATSUURA Tamifusa , TSURUTA Atsushi , ONO Yoshiaki , KURODA Yoshihiro

    Infrared divergence in the pseudo-particle spectra of the degenerate impurity Anderson model described in terms of the auxiliary particles is examined rigorously with use of the expansion from the lar …

    Journal of the Physical Society of Japan 66(5), 1245-1248, 1997-05-15

    J-STAGE  References (16)

  • Spin and Charge Susceptibilities in the d-p Model

    KOBAYASHI Akito , ONO Yoshiaki , MATSUURA Tamifusa , KURODA Yoshihiro

    By including the higher order terms in the RPA in addition to the leading order terms of thel/Y-expansion, the spin susceptibility ('(q) and the charge sttsceptibility X'((7) are investigatedin the d- …

    Journal of the Physical Society of Japan 65(7), 2231-2240, 1996-07-15

    References (35)

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