MUON-SPIN-RELAXATION MEASUREMENTS OF MAGNETIC PENETRATION DEPTH IN ORGANIC SUPERCONDUCTORS (BEDT-TTF)2-X - X=CU(NCS)2 AND CU[N(CN)2]BR

被引：126

作者：

LE, LP

LUKE, GM

STERNLIEB, BJ

WU, WD

UEMURA, YJ

BREWER, JH

RISEMAN, TM

STRONACH, CE

SAITO, G

YAMOCHI, H

WANG, HH

KINI, AM

CARLSON, KD

WILLIAMS, JM

机构：

[1] COLUMBIA UNIV, DEPT PHYS, NEW YORK, NY 10027 USA

[2] UNIV BRITISH COLUMBIA, DEPT PHYS, VANCOUVER V6T 2A3, BC, CANADA

[3] VIRGINIA STATE COLL, DEPT PHYS, PETERSBURG, VA 23803 USA

[4] KYOTO UNIV, DEPT CHEM, KYOTO 606, JAPAN

[5] ARGONNE NATL LAB, DIV CHEM & MAT SCI, ARGONNE, IL 60439 USA

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 12期

关键词：

D O I：

10.1103/PhysRevLett.68.1923

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetic-field penetration depth-lambda in the organic superconductors kappa-(BEDT-TTF)2Cu(NCS)2 and kappa-(BEDT-TTF)2Cu[N(CN)2]Br has been measured over a wide temperature region 20 mK less-than-or-equal-to T less-than-or-equal-to 15 K via the muon-spin-relaxation technique. Linear variation of lambda with T at low temperatures, found in both systems, is consistent with anisotropic superconducting pairings with line nodes in the energy gap. In the latter compound, we observe flux depinning at T approximately 5 K, well below T(c) = 12 K.

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页码：1923 / 1926

页数：4

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