C-13 NMR-STUDIES OF THE NORMAL AND SUPERCONDUCTING STATES OF THE ORGANIC SUPERCONDUCTOR KAPPA-(ET)(2)CU[N(CN)(2)]BR

被引：209

作者：

DESOTO, SM

SLICHTER, CP

KINI, AM

WANG, HH

GEISER, U

WILLIAMS, JM

机构：

[1] UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801

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

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.52.10364

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The authors report C-13 NMR spin-lattice relaxation rates 1/T-1 and Knight shifts K-S in the quasi-two-dimensional organic superconductor kappa-(ET)(2)Cu[N(CN)(2)]Br (T-c=11.6 K), for an aligned single crystal. The normal-state behavior is reminiscent of the high-T-c cuprates, in which antiferromagnetic fluctuations and spin-gap behavior dominate. In the superconducting state, the data rule out the BCS electron-phonon mechanism as the source of the superconductivity, but support an unconventional pairing state with possible nodes in the gap function.

引用

页码：10364 / 10368

页数：5

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