NOVEL ASPECTS OF ORGANIC SUPERCONDUCTORS - NMR AND MAGNETIC-SUSCEPTIBILITY

被引：30

作者：

TAKAHASHI, T ^{[1
]}

KANODA, K ^{[1
]}

SAITO, G ^{[1
]}

机构：

[1] KYOTO UNIV,DEPT CHEM,SAKYO KU,KYOTO 606,JAPAN

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)92001-R

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Unconventional natures of the superconductivity in the organic superconductors, kappa-(BEDT-TTF)2-Cu(NCS)2 and kappa-(BEDT-TTF)2CuN[(CN)2]Br, were revealed by complex susceptibility and H-1-NMR relaxation measurements. The temperature dependence of magnetic-field penetration depth, lambda, in both compounds was found to follow a power law at low temperatures, instead of an exponential behavior expected in the BCS theory. These results strongly suggest anisotropic superconductivity of gapless nature. The existence of new relaxation mechanism related to vortex dynamics in the superconducting state was confirmed.

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页码：366 / 371

页数：6

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