Microwave-induced resistance oscillations in tilted magnetic fields

TL;DR

This study investigates how an in-plane magnetic field affects microwave-induced resistance oscillations in high mobility 2D electron systems, revealing an exponential decay in oscillation amplitude linked to quantum scattering rate modifications.

Contribution

The paper introduces a new understanding of the decay mechanism of resistance oscillations under in-plane magnetic fields, highlighting a quadratic correction to the quantum scattering rate.

Findings

Oscillation amplitude decays exponentially with in-plane magnetic field.

Decay can be explained by a $B_\parallel$-induced correction to quantum scattering rate.

Existing theories do not account for the observed decay pattern.

Abstract

We have studied the effect of an in-plane magnetic field on microwave-induced resistance oscillations in a high mobility two-dimensional electron system. We have found that the oscillation amplitude decays exponentially with an in-plane component of the magnetic field $B_\parallel$. While these findings cannot be accounted for by existing theories, our analysis suggests that the decay can be explained by a $B_\parallel$-induced correction to the quantum scattering rate, which is quadratic in $B_\parallel$.