Topological properties of spin-triplet superconductors and Fermi surface topology in the normal state

被引：147

作者：

Sato, Masatoshi ^{[1
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 21期

关键词：

Fermi surface; superconductivity; surface states;

D O I：

10.1103/PhysRevB.79.214526

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report intimate relations between topological properties of full-gapped spin-triplet superconductors with time-reversal invariance and the Fermi surface topology in the normal states. An efficient method to calculate the Z(2) invariants and the winding number for the spin-triplet superconductors is developed and connections between these topological invariants and the Fermi surface structures in the normal states are pointed out. We also obtain a correspondence between the Fermi surface topology and gapless surface states in the superconducting states. The correspondence is inherent to spin-triplet superconductivity.

引用

页数：6

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