Fractional vortices on grain boundaries: The case for broken time-reversal symmetry in high-temperature superconductors

被引：37
作者：
Bailey, DB
Sigrist, M
Laughlin, RB
机构：
[1] MIT,DEPT PHYS,CAMBRIDGE,MA 02139
[2] ETH HONGGERBERG,CH-8093 ZURICH,SWITZERLAND
[3] LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550
来源：
PHYSICAL REVIEW B | 1997年 / 55卷 / 22期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.55.15239
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We discuss the problem of broken time-reversal symmetry near grain boundaries in a d-wave superconductor based on a Ginzburg-Landau theory. It is shown that such a state can lead to fractional Vortices on the grain boundary. Both analytical and numerical results show the structure of this type of state.
引用
收藏
页码：15239 / 15247
页数：9
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