Absolute negative conductivity and zero-resistance states in two dimensional electron systems: A plausible scenario

TL;DR

This paper proposes a model explaining zero-resistance and zero-conductance states in 2D electron systems under magnetic fields and microwave irradiation, based on negative conductivity from photon-assisted impurity scattering.

Contribution

It introduces a plausible theoretical model linking negative conductivity to observed zero-resistance states, emphasizing the role of electron scattering mechanisms.

Findings

Main features explained by interplay of scattering mechanisms

Negative conductivity linked to photon-assisted impurity scattering

Model aligns with experimental observations

Abstract

We present a model which provides a plausible explanation of the effect of zero-resistance and zero-conductance states in two-dimensional electron systems subjected to a magnetic field and irradiated with microwaves observed in a number of experiments and of the effect main features. The model is based on the concept of absolute negative conductivity associated with photon-assisted scattering of electrons on impurities. It is shown that the main features of the effect can be attributed to the interplay of different electron scattering mechanisms.