Theory of microwave-induced oscillations in the magnetoconductivity of a 2D electron gas

TL;DR

This paper develops a theoretical framework explaining microwave-induced oscillations in the magnetoconductivity of a 2D electron gas, emphasizing the role of electron distribution changes and nonlinear effects under microwave radiation.

Contribution

It introduces a comprehensive theory accounting for nonlinearity, temperature dependence, and the influence of microwave power on magnetoconductivity oscillations in 2D electron gases.

Findings

Oscillations are governed by changes in the electron distribution function.

Nonlinear effects depend on the dc field and microwave power.

Temperature influences oscillation behavior via inelastic relaxation rate.

Abstract

We develop a theory of magnetooscillations in the photoconductivity of a two-dimensional electron gas observed in recent experiments. The effect is governed by a change of the electron distribution function induced by the microwave radiation. We analyze a nonlinearity with respect to both the dc field and the microwave power, as well as the temperature dependence determined by the inelastic relaxation rate.