METALLIC AND SUPERCONDUCTING SALTS BASED ON AN UNSYMMETRICAL PI-DONOR DIMETHYL(ETHYLENEDITHIO)TETRASELENAFULVALENE (DMET-TSEF)

被引：30

作者：

KATO, R

AONUMA, S

OKANO, Y

SAWA, H

TAMURA, M

KINOSHITA, M

OSHIMA, K

KOBAYASHI, A

BUN, K

KOBAYASHI, H

机构：

[1] OKAYAMA UNIV,FAC SCI,DEPT PHYS,OKAYAMA 700,JAPAN

[2] UNIV TOKYO,FAC SCI,DEPT CHEM,BUNKYO KU,TOKYO 113,JAPAN

[3] TOHO UNIV,FAC SCI,DEPT CHEM,FUNABASHI,CHIBA 274,JAPAN

来源：

SYNTHETIC METALS | 1993年 / 61卷 / 03期

关键词：

D O I：

10.1016/0379-6779(93)91262-Z

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of radical cation salts (DMET-TSeF)2X (X=I3, AuI2, AuBr2, AuCl2, Au(CN)2) Crystallize in the triclinic P1BAR group. The DMET-TSeF molecules form zigzag columnar stacks. Short intermolecular chalcogen...chalcogen contacts are observed within and between stacks. The AuI2 salt exhibits a sample-dependent resistivity minimum around 25 K. The AuI2 salt without the resistivity minimum shows superconductivity with T(c)=0.58 K at ambient pressure. The AuBr2 salt exhibits a resistivity minimum around 35 K. Other salts remain metallic down to 4.2 K. These salts should be classified into a quasi one-dimensional system.

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页码：199 / 206

页数：8

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