MAGNETIC DETERMINATION OF GINZBURG-LANDAU COHERENCE LENGTH FOR ORGANIC SUPERCONDUCTOR KAPPA-(BEDT-TTF)2X (X = CU(NCS)2, CU[N(CN)2]BR) - EFFECT OF ISOTOPE SUBSTITUTION

被引：71

作者：

ITO, H

WATANABE, M

NOGAMI, Y

ISHIGURO, T

KOMATSU, T

SAITO, G

HOSOITO, N

机构：

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

[2] KYOTO UNIV,INST CHEM RES,UJI,KYOTO 611,JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1991年 / 60卷 / 10期

关键词：

ORGANIC SUPERCONDUCTOR; SUPERCONDUCTIVITY FLUCTUATION; GL COHERENCE LENGTH; DIAMAGNETISM; 2-DIMENSIONALITY; ISOTOPE EFFECT;

D O I：

10.1143/JPSJ.60.3230

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Ginzburg-Landau coherence lengths are determined from the temperature dependence of the magnetization by fitting measured results with the renormalization theory of the fluctuation developed for layered superconductors. The derived interlayer coherence lengths are 6 +/- 2 angstrom and 3.2 +/- 0.5 angstrom for kappa-(BEDT-TTF)2Cu-[N(CN)2]Br and kappa-(BEDT-TTF)2Cu(NCS)2, respectively, which are remarkably shorter than the interlayer spacing. It is also found that these coherence lengths are virtually unaffected by isotope substitution in BEDT-TTF molecules.

引用

页码：3230 / 3233

页数：4

共 11 条

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