Point-contact spectra of the organic metal β-(BEDT-TTF)2I3

Abstract

The d2U/dI2-characteristics of point-contacts between the organic superconductor β-(BEDT-TTF)2I3 in the normal metallic state and a normal metal (copper) are measured and found to be quite similar to those of point-contacts between normal metals which are well known to be correlated with the electron phonon coupling and the phonon density of states.