About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Paper
Comparative ESR study of three (BEDT-TTF): ReO4 salts: An organic superconductor, a peierls metal and a semiconductor
Abstract
We present electron spin resonance results on three different conducting phases of the organic conductor based on the planar molecule BEDT-TTF (bis(ethylenedithio)tetrathiafulvalene) and the anion ReO4 in different stoichiometries. Both the paramagnetic susceptibility χ as well as the ESR-linewidth ΔHpp may be used to classify the magnetic behaviour in terms of known behaviour of other organic metals. They indicate that the 2:1 phase, which under pressure becomes superconducting, has an anion-ordering assisted metal-insulator transition near 80 K and that the 3:2 phase has a Peierls transition at 88 K, below which two ESR lines are resolved. A third phase, which includes solvent in the crystal lattice, shows no evidence of a transition. © 1984.