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.

引用

页码：518 / 520

页数：3

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