Phase Transition in Two Terminal Electrical Circuit

Abstract

The phase transition phenomenon is found in two terminal electrical circuit. I–V curve of the circuit consists of five regions, ON, OFF, I, II and III-states. The ON and OFF-states produce only DC-current. The I and III-states have decaying oscillations. In the II-state a constant amplitude oscillation appears. As the bias passes the upper and lower boundaries of the II-state the increases in the current noise and in the decay time of the decaying oscillation are observed, which correspond to the critical fluctuation and critical slowing down, respectively.