PRESSURE EFFECT ON SUPERCONDUCTIVITY IN THE ORGANIC-CRYSTAL FAMILY KAPPA-(BEDT-TTF)2CU[N(CN)2]CL1-XBRX

被引：14

作者：

SUSHKO, YV ^{[1
]}

ANDRES, K ^{[1
]}

KUSCH, ND ^{[1
]}

YAGUBSKII, EB ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST CHEM PHYS,CHERNOGOLOVKA 142432,RUSSIA

来源：

SOLID STATE COMMUNICATIONS | 1993年 / 87卷 / 07期

关键词：

D O I：

10.1016/0038-1098(93)90117-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The influence of hydrostatic pressure on superconductivity (SC) in a series of four compounds kappa-(BEDT-TTF)2 Cu[N(CN)2]-Cl1-xBrx, with x=0.15 0 2, 0.3 and 1.0 has been studied by measurements of the static diamagnetic shielding- and Meissner-magnetization. Different behavior of the SC volume fraction and of T(c) versus pressure is found for two regions of T-P-x Phase diagram. Region I (P greater-than-or-equal-to 0 for x greater-than-or-equal-to 0.3, and P > 250 bar for x less-than-or-equal-to 0.2) is characterized by a rapid decrease of Tc and by a pressuure-independent SC volume fraction. In a region II(x less-than-or-equal-to 0.2, P<250 bar), where the SC phase has, according to resistivity data, a common border with the insulating phase, a rapid increase of both T(c) and the SC fraction with pressure is observed.

引用

页码：589 / 592

页数：4

共 14 条

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[9] SUPERCONDUCTING MEISSNER EFFECT UNDER HYDROSTATIC-PRESSURE IN THE AMBIENT-PRESSURE SEMICONDUCTOR KAPPA-(BEDT-TTF)2CU(N(CN)2)CL, WHERE BEDT-TTF IS BIS(ETHYLENEDITHIO)TETRATHIAFULVALENE [J].

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SUSHKO YV, UNPUB

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