MAGNETIC PENETRATION DEPTH IN THE ORGANIC SUPERCONDUCTOR KAPPA-[BEDT-TTF]2CU[NCS]2

被引：94

作者：

HARSHMAN, DR

KLEIMAN, RN

HADDON, RC

CHICHESTERHICKS, SV

KAPLAN, ML

RUPP, LW

PFIZ, T

WILLIAMS, DL

MITZI, DB

机构：

[1] UNIV BRITISH COLUMBIA,VANCOUVER V6T 2A6,BC,CANADA

[2] STANFORD UNIV,DEPT APPL PHYS,STANFORD,CA 94305

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.64.1293

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first direct measurement of the effective magnetic penetration depth in oriented single crystals of -[BEDT-TTF]2Cu[NCS]2, with Tc(5 G)S9 K. Results yield an effective in-plane value of effbc(0)S9800 (for HextS3 kG), and a temperature dependence consistent with conventional s-wave pairing. Comparison with the London penetration depth, L(0) (estimated to be S5100), indicates a tendency toward dirty-limit superconductivity, with the ratio of coherence length over mean free path of 0bc/lbcS2.7. From our results, it appears unnecessary to invoke any unconventional pairing schemes to explain the superconductivity in this material. © 1990 The American Physical Society.

引用

页码：1293 / 1296

页数：4

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