Microwave radiation induced magneto-oscillations in the longitudinal and transverse resistance of a two dimensional electron gas

TL;DR

This study confirms microwave-induced magneto-oscillations in both longitudinal and transverse resistances of a 2D electron gas, revealing phase relationships that deepen understanding of this phenomenon.

Contribution

It demonstrates the presence of microwave-induced oscillations in both resistance components in a sample with moderate mobility, expanding previous observations.

Findings

Oscillations observed in both resistances

Phase relationship between longitudinal and Hall resistance

Provides new insights into the phenomenon's origin

Abstract

We confirm the existance of magneto-resistance oscillations in a microwave-irradiated two-dimensional electron gas, first reported in a series of papers by Zhudov et al. and Mani et al. In our experiments, on a sample with a more moderate mobility, the microwave induced oscillations are observed not only in the longitudinal - but also in the transverse-resistance (Hall resistance). The phase of the oscillations is such that the decrease (increase) in the longitudinal resistance is accompanied by an increase (decrease) in the absolute value of the Hall resistance. We believe that these new results provide valuable new information to better understand the origin of this interesting phenomenon.