TY - JOUR
T1 - Doping dependence of hole-number distribution on CuO2 plane and superconducting transition temperature of high-Tc cuprates by dxy pairing scenario
AU - Tsuji, T.
AU - Narikiyo, O.
AU - Miyake, K.
N1 - Funding Information:
We acknowledge K. Asayama for urging us to pay attention to the correlation between the transition temperature and the hole-number distribution in high-Tc cuprates. One of the authors (Tr) is grateful to H. Kusunose for continuous discussions throughout this work. Another (ON) thanks Y. Kitaoka, G.-q. Zheng, K. Ishida and T. Hotta for valuable discussions on experiments. This work is supported in part by a Grant-in-Aid for General Scientific Research (04640369), a Grant-in-Aid for Scientific Research on Priority Areas: "Science of High-To Superconductivity" (04240103) and the Monbusho International Scientific Research Program: Joint Research "Research on Highly Correlated Superconductors" (06044135) from the Ministry of Education, Science and Culture.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1995/3/20
Y1 - 1995/3/20
N2 - The doping dependence of the hole-number distribution on the CuO2 plane and the superconducting transition temperature Tc is investigated using the two-dimensional d-p model on the basis of a renormalized perturbation of the Fermi liquid: first forming the quasiparticles variationally by the Gutzwiller approximation taking into account the strong on-site repulsion Ud at Cu sites, then treating the residual interactions among quasiparticles by the RPA. The Gutzwiller variational state describes well the electronic state around the Fermi level and accounts for the systematic doping dependence of the hole-number distribution on Cu and O sites which has been measured by Asayama et al. using the NQR technique. Then the doping dependence of Tc is naturally understood by the charge-fluctuation mediated dxy pairing scenario where the role of the repulsive interaction Upd between the nearest-neighbor Cu and O sites is crucial.
AB - The doping dependence of the hole-number distribution on the CuO2 plane and the superconducting transition temperature Tc is investigated using the two-dimensional d-p model on the basis of a renormalized perturbation of the Fermi liquid: first forming the quasiparticles variationally by the Gutzwiller approximation taking into account the strong on-site repulsion Ud at Cu sites, then treating the residual interactions among quasiparticles by the RPA. The Gutzwiller variational state describes well the electronic state around the Fermi level and accounts for the systematic doping dependence of the hole-number distribution on Cu and O sites which has been measured by Asayama et al. using the NQR technique. Then the doping dependence of Tc is naturally understood by the charge-fluctuation mediated dxy pairing scenario where the role of the repulsive interaction Upd between the nearest-neighbor Cu and O sites is crucial.
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U2 - 10.1016/0921-4534(95)00063-1
DO - 10.1016/0921-4534(95)00063-1
M3 - Article
AN - SCOPUS:0029276505
VL - 244
SP - 311
EP - 320
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 3-4
ER -