Superconducting properties of quasi-two-dimensional organic metals

The nature of the complex superconducting state in organic charge-transfer salts is a topic of continuous controversial debate and far from being uneq uivocally clarified. This paper presents some recent perspectives on the ri ch variety of the physical aspects of the superconductivity in quasi-two-di mensional (2D) organic superconductors. After a short review of the up to d ate not yet conclusive experimental situation, which is interpreted either by the usual BCS theory or as an indication for unconventional superconduct ivity, some recent results on the magnetic phase diagram, on fluctuation ef fects, on the vortex dynamics, and of the specific heat of these 'exotic' m aterials is presented. (C) 1999 Elsevier Science B.V. All rights reserved.