Strong spin-orbit coupling effects on the fermi surface of Sr2RuO4 and Sr2RhO4

被引：212

作者：

Haverkort, M. W. ^{[1
]}

Elfimov, I. S. ^{[2
]}

Tjeng, L. H. ^{[1
]}

Sawatzky, G. A. ^{[2
]}

Damascelli, A. ^{[2
]}

机构：

[1] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany

[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T IZ1, Canada

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.101.026406

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a first-principles study of spin-orbit coupling effects on the Fermi surface of Sr(2)RuO(4) and Sr(2)RhO(4). For nearly degenerate bands, spin-orbit coupling leads to a dramatic change of the Fermi surface with respect to nonrelativistic calculations; as evidenced by the comparison with experiments on Sr(2)RhO(4), it cannot be disregarded. For Sr(2)RuO(4), the Fermi surface modifications are more subtle but equally dramatic in the detail: Spin-orbit coupling induces a strong momentum dependence, normal to the RuO(2) planes, for both orbital and spin character of the low-energy electronic states. These findings have profound implications for the understanding of unconventional superconductivity in Sr(2)RuO(4).

引用

页数：4

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