OPTICAL-PROPERTIES OF ORGANIC SUPERCONDUCTORS

Optical studies, in a wide sense, are one of the most powerful techniq ues for studying the electronic properties of solids. We discuss inves tigations of the electrodynamic response in the two-dimensional organi c conductors of the BEDT-TTF family, which become superconducting at a round 10 K. in the normal state, the frequency dependent conductivity is that of a correlated metal with significant deviations from the sim ple Drude model. The electrodynamical properties of the superconductin g state are those of an anisotropic BCS superconductor with no indicat ions of unconventional pairing.