SURFACE IMPEDANCE STUDIES ON THE ELECTRODYNAMIC RESPONSE OF ORGANIC SUPERCONDUCTORS

被引：2

作者：

DRESSEL, M ^{[1
]}

KLEIN, O ^{[1
]}

BRUDER, S ^{[1
]}

GRUNER, G ^{[1
]}

CARLSON, KD ^{[1
]}

WANG, HH ^{[1
]}

WILLIAMS, JM ^{[1
]}

机构：

[1] ARGONNE NATL LAB,DIV CHEM & MAT SCI,ARGONNE,IL 60349

来源：

SYNTHETIC METALS | 1995年 / 70卷 / 1-3期

关键词：

D O I：

10.1016/0379-6779(94)02692-R

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have performed detailed measurements of the surface impedance in the normal and superconducting state of kappa-(BEDT-TTF)(2)Cu(NCS)(2) in the millimeter wave frequency range (1 cm(-1) to 3 cm(-1)), and have evaluated the complex conductivity for different crystallographic orientations. Above the transition temperature, the material behaves like a metal with a scattering rate of approximately 20 cm(-1). In the superconducting state the electrodynamics of both materials is in good agreement with calculations based on a BCS ground state: the penetration depth is temperature independent for T --> 0; while the penetration depth and the coherence length are strongly anisotrop, the superconducting energy gap shows no indications of line nodes.

引用

页码：895 / 898

页数：4