Unconventional cyclotron resonance in Sr2RuO4

被引：7

作者：

Ardavan, A ^{[1
]}

Edwards, RS ^{[1
]}

Rzepniewski, E ^{[1
]}

Singleton, J ^{[1
]}

Blundell, SJ ^{[1
]}

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

来源：

PHYSICA B-CONDENSED MATTER | 2001年 / 294卷 / 294-295期

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

magneto-optics; p-wave superconductivity; cyclotron resonance; fermiology;

D O I：

10.1016/S0921-4526(00)00682-7

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An angle-dependent study of the magneto-optical response of the p-wave triplet-paired perovskite superconductor Sr2RuO4\ reveals several new cyclotron resonance effects. We observe an odd-harmonic cyclotron resonance series, probably arising from the gamma Fermi surface, with a fundamental cyclotron mass of 12.6 m(e). In addition, we find several resonance branches which behave in unconventional ways owing to the unusual nature of the band dispersion in this material. The results confirm the complexity of the Sr2RuO4 Fermi surface topology and show that earlier conclusions drawn from millimetre-wave experiments should be reconsidered. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：379 / 382

页数：4

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