Jumps in Current-Voltage Characteristics in Disordered Films
Jumps in Current-Voltage Characteristics in Disordered Films
We argue that giant jumps of current at finite voltages observed in disordered films of InO, TiN, and YSi manifest a bistability caused by the overheating of electrons. One of the stable states is overheated and thus low resistive, while the other, high-resistive state is heated much less by the …