Oscillatory nonlinear differential magnetoresistance of highly mobile 2D electrons in high Landau levels

TL;DR

This paper investigates the oscillatory nonlinear magnetoresistance in high-mobility 2D electron systems at high Landau levels, providing analytical expressions that align well with experimental and numerical results.

Contribution

It introduces analytical formulas for differential magnetoresistivity in high Landau levels, aiding the interpretation of experimental data in nonlinear magnetotransport.

Findings

Analytical expressions match experimental observations.

Good agreement between theory and numerical calculations.

Provides tools for extracting physical information from experiments.

Abstract

We examine the current-induced magnetoresistance oscillations in high-mobility two-dimensional electron systems using the balance-equation scheme for nonlinear magnetotransort. The reported analytical expressions for differential magnetoresistivity at high filling factors in the overlapping Landau-level regime, which show good agreement with the experimental observation and the numerical calculation, may be helpful in extracting physical information from experiments.