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

被引：0
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作者：
Tsuchiura, Hiroki [1 ]
Tanaka, Yukio [1 ,2 ]
Ogata, Masao [3 ]
Kashiwaya, Satoshi [1 ,4 ,5 ]
机构：
[1] CREST, Japan Science and Technology (JST), Nagoya 464-8603, Japan
[2] Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan
[3] Department of Basic Science, Graduate School of Arts and Sciences, University of Tokyo, Komaba, Meguro-ku, Tokyo 153-0041, Japan
[4] Electrotechnical Laboratory, Umezono, Tsukuba, Ibaraki 305-8568, Japan
[5] Ginzton Laboratory, Stanford University, Stanford, CA 94305-4085, United States
来源：
Physica C: Superconductivity and its Applications | 1999年 / 317-318卷
关键词：
Approximation theory - Electronic density of states - Fermi surface - Impurities - Mathematical models;
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摘要：
Superconducting state around impurities in the high-Tc 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.
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页码：518 / 520
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