conductivity;
magnetotransport;
metal insulator transition;
organic conductors;
D O I:
10.1016/S0379-6779(98)00629-8
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Cation radical salts based on ethylenedioxy-S,S-dimethylethylenedithio-tetrathiafulvalene, pyrazino-S,S-dimethylethylenedithio-tetrathiafulvalene and ethylenedioxy-venylenedithio-tetrathiafulvalene with linear counter anions are crystallized in the tau-phase. They exhibit logarithmic temperature dependence of the resistivity and negative magnetoresistance at low temperatures and low magnetic fields, while their magnetoresistance shows maxima (and minima) at higher magnetic fields and lower temperatures.