Magnetic Order in Organic Superconductors

Authors:

1 March 1985

journal article
Published by Taylor & Francis in Molecular Crystals and Liquid Crystals

Vol. 119 (1) , 389-392
DOI:10.1080/00268948508075188

Abstract

We have undertaken an electron spin resonance study at both low and high magnetic field on the superconducting phase of the ambient pressure superconductor (BEDT-TTF>₂I₃, (ET)₂I₃, over the temperature range 1-300 K and hydrostatic pressure range from 0 to 2 kbar. At ambient pressure the ESR results are consistent with the picture of (ET)₂I₃ as a metal. Superconductivity is observed at 1.6 K via low field ESR. Application of modest pressures strongly suppresses the superconducting transition temperature. At pressures above about 0.3 kbar the superconductivity is suppressed in favor of an as-yet-unidentified magnetic state whose onset is at 7K. Through an analysis of the microwave ESR lineshape we find that the microwave conductivity over the temperature range 5-50 K is in agreement with dc measurements.

Keywords

This publication has 2 references indexed in Scilit:

Synthetic metals based on bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF): synthesis, structure, and ambient-pressure superconductivity in (BEDT-TTF)2I3
Inorganic Chemistry, 1984
The solid helium pressure generation technique
Cryogenics, 1970