Theoretical approach to micro wave radiation-induced zero-resistance states in 2D electron systems

TL;DR

This paper develops a theoretical model explaining radiation-induced zero-resistance states in 2D electron systems, reproducing experimental phenomena through analysis of electron dynamics and impurity scattering.

Contribution

It introduces an exact solution for harmonic oscillator wave functions under radiation and a perturbation approach for impurity scattering, providing a comprehensive explanation for observed zero-resistance states.

Findings

Reproduces experimental resistivity oscillations

Explains dependence on radiation intensity and frequency

Accounts for temperature effects and minima locations

Abstract

We present a theoretical model in which the existence of radiation-induced zero-resistance states is analyzed. An exact solution for the harmonic oscillator wave function in the presence of radiation, and a perturbation treatment for elastic scattering due to randomly distributed charged impurities, form the foundations of our model. Following this model most experimental results are reproduced, including the formation of resistivity oscillations, their dependence on the intensity and frequency of the radiation, temperature effects, and the locations of the resistivity minima. The existence of zero-resistance states is thus explained in terms of the interplay of the electron MW-driven orbit dynamics and the Pauli exclusion principle.