Reply to Comment on: "Radiation-Induced 'Zero-Resistance State' and the Photon Assisted Transport"

TL;DR

This paper clarifies that the observed 'zero resistance state' in certain systems is actually a 'zero conductance state,' emphasizing the importance of correct conductance measurement interpretation in the context of radiation-induced phenomena.

Contribution

The authors correct a misconception about the zero resistance state by highlighting the proper conductance measurement interpretation and discuss the phase transition related to negative conductance.

Findings

Zero resistance state is actually a zero conductance state.

Conductance measurement interpretation is crucial in such systems.

Discussion of phase transition induced by negative conductance.

Abstract

We show that the comment by A.F. Volkov ignores a delicate issue in the conductance measurement for a hall bar system. In such system, $\rho _{xx}\approx \rho_{xy}^{2}\sigma_{xx}$ while $\sigma_{xy}\gg \sigma_{xx}$, as correctly pointed out in Ref.3. We clarify that the so called "zero resistance state" is actually a "zero conductance state". A discussion concerning the phase transition induced by the negative conductance is presented.