Electrodynamic response of Sr2RuO4

被引：14

作者：

Ormeno, R. J. ^{[1
]}

Hein, M. A.

Barraclough, T. L.

Sibley, A.

Gough, C. E.

Mao, Z. Q.

Nishizaki, S.

Maeno, Y.

机构：

[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[2] Kyoto Univ, Dept Phys, Kyoto 60601, Japan

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.74.092504

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface impedance Z(s)=R-s+iX(s) of a number of Sr2RuO4 crystals has been measured in the frequency range f similar to 2-15 GHz using a dielectric resonator technique. Z(s) conforms to the classical skin effect only above 20 K, because the quasiparticle relaxation rate 1/tau approaches 2 pi f at lower temperatures. Below T-c, R-s decreases while X-s initially increases and peaks at a frequency-dependent temperature. The microwave properties are quite unlike those of conventional and high-T-c superconductors and imply a finite quasiparticle fraction at T=0 with a temperature-independent relaxation time throughout the superconducting state.

引用

页数：4

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