CURRENT-TEMPERATURE PHASE-DIAGRAM OF LAYERED SUPERCONDUCTORS

The behavior of clean layered superconductors in the presence of a fin ite electric current and in zero-magnetic field behavior is addressed. The structure of the current temperature phase diagram and the proper ties of each of the four regions will be explained. We will discuss th e expected current-voltage and resistance characteristics of each regi on as well as the effects of finite-size and weak disorder on the phas e diagram. In addition, the reason for which a weakly non-Ohmic region exists above the transition temperature will be explained.