Anisotropy of upper critical field for high temperature superconductors

被引：0
|
作者：
Matsueda, H
Sakai, L
Takanaka, K
机构：
[1] Tohoku Univ, Dept Appl Phys, Sendai, Miyagi 9808579, Japan
[2] Mitsubishi Electr Corp, Informat Technol R&D Ctr, Kamakura, Kanagawa 2478501, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 329卷
关键词：
anisotropic upper critical field; anisotropic Fermi surface; pairing symmetry;
D O I：
10.1016/S0921-4526(02)02388-8
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The anisotropy of high T-c superconductors arises both from the coupling constant and the Fermi surface in the Ginzburg-Landau framework. The anisotropy of the former is expressed by d(x2-y2) symmetry. The shapes of the Fermi surface of high (T)c superconductors are various and depend on materials and doping ratio. In this paper, we study the anisotropy of the upper critical field H-c2 in the ab plane with d(x2-y2) symmetry and with typical shapes of the Fermi surface. (C) 2003 Elsevier Science B.V. All rights reserved.
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收藏
页码：1465 / 1466
页数：2
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