Impurity effect in the superconducting state of the two-dimensional t-J model

被引：0
|
作者：
Tsuchiura, H
Tanaka, Y [1 ]
Ogata, M
Kashiwaya, S
机构：
[1] Japan Sci & Technol, CREST, Nagoya, Aichi 4648603, Japan
[2] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan
[3] Univ Tokyo, Grad Sch Arts & Sci, Dept Basic Sci, Meguro Ku, Tokyo 1530041, Japan
[4] Electrotech Lab, Tsukuba, Ibaraki 3058568, Japan
[5] Stanford Univ, Ginzton Lab, Stanford, CA 94305 USA
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1999年 / 317卷
关键词：
two-dimensional t-J model; Gutzwiller approximation; d-wave superconductivity; nonmagnetic impurity; zero-energy peak;
D O I：
10.1016/S0921-4534(99)00114-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Superconducting state around impurities in the high-T-c superconductors is studied using the two-dimensional t-J model for various geometrical configurations. The spatial dependence of the order parameter and the local density of states are calculated by the numerical diagonalization of the Bogoliubov-de Gennes equation derived using the Gutzwiller approximation. Geometrical configuration effect of impurities are studied in detail. (C) 1999 Elsevier Science B.V. All rights reserved.
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收藏
页码：518 / 520
页数：3
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