POINT-CONTACT SPECTROSCOPY OF LOW-DIMENSIONAL ORGANIC CONDUCTORS

The point-contact (PC) spectroscopy of the electron-phonon interaction in layered organic conductors with quasi-two-dimensional energy spect rum of charge carriers is developed. The predicted anisotropy of the P C spectra is observed on heterocontacts of Cu or Ag and the organic me tals. Two groups of organic conductors were studied. One of them based on the iodine compound of the BEDT-TTF complex shows superconducting properties. The PC spectra measured on contacts with the current flow in the plane of organic molecule layer display features caused by the interaction between the electrons and intermolecular vibrations. The s pectra of the samples with the axis perpendicular to the layers have m axima reflecting the predominating role of anions in energy relaxation in such contacts.