Superconductors of mixed order-parameter symmetry in a Zeeman magnetic field

被引：10

作者：

Ghosh, H ^{[1
]}

机构：

[1] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.60.3538

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We study the effect of a Zeeman magnetic field in the superconducting phase with a two-component order-parameter scenario, such as d(x2)-(y2) + e(i theta) alpha, where alpha = d(xy), s. This scenario is equivalent to applying a magnetic field parallel to the Cu-O plane. In a weak magnetic field, which does not cause much change to the predominant d wave, it supresses the minor a component leading to pure d-wave phase. This observation is contrary to the effect of a magnetic field applied in the c direction to the Cu-O planes that are believed to induce a minor component a to d-wave superconductors. We also show that the response of such superconductors to a weak Zeeman magnetic field can be quite different depending on the phase theta of the minor component (alpha). [S0163-1829(99)01929-3].

引用

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页码：3538 / 3543

页数：6

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