On the possibility of quantization of the conductance in the microwave-induced resistive state of layered superconductors

It was observed that a microwave field induces constant differential resistance steps, close in magnitude to the reciprocal of the conductance quantum h/2e ², in the current-voltage characteristics (IVCs) of layered structures with an intrinsic Josephson effect under conditions of transport in a direction perpendicular to the layers. A qualitative explanation of this result is proposed. Pis’ma Zh. éksp. Teor. Fiz. 67, No. 1, 68–71 (10 January 1998)