Superconductivity of a θ-type et salt prepared using CuCN AND PH 4 PN(CN) 2 as electrolyte

Abstract

A θ-type ET salt θ-(ET) 2 Cu 2 (CN)[N(CN) 2 ] 2 has been obtained by electrocystallization in PhCN, using Ph 4 N[N(CN) 2 ] and CuCN as electrolytes. Some of them showed anomalous behaviors for Low-Field-Microwave-Absorption (LFMA) measurements, which were one of the characteristics of superconductivity. However, the others did not show the LFMA signals, indicating that there are two phases in this compound having different electronic states at low temperature.