SUPERCONDUCTIVITY IN ORGANIC METALS BASED ON AN INDIRECT EXCHANGE PAIRING MECHANISM

被引：6

作者：

CHANDRAN, L ^{[1
]}

JANSEN, L ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,CH-8093 ZURICH,SWITZERLAND

来源：

CHEMICAL PHYSICS | 1993年 / 169卷 / 01期

关键词：

D O I：

10.1016/0301-0104(93)80035-8

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We discuss the possible occurrence, or absence, of superconductivity in various categories of organic metals, based on a pairing mechanism of conduction electrons due to indirect exchange interactions between them, mediated by sulphur or selenium atoms. Within this mechanism the organic superconductors are analogous to the high-T(c) cuprates and the alkali-doped buckminster-fullerenes C60, in that specific diamagnetic units mediate pairing of conduction electrons, in the s-wave channel, in all of them. The diamagnetic units are the oxygen anions in the cuprates and the carbon-carbon double bonds in the fullerenes. In the organics we show that S and Se are the relevant diamagnetic units rather than O atoms or C=C double bonds. This is in striking agreement with the fact that all known organic superconductors contain either S or Se and sometimes both.

引用

页码：1 / 10

页数：10

共 41 条

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