Frequency-dependent polarization-angle-phase-shift in the microwave-induced magnetoresistance oscillations

Abstract

Linear polarization angle, $\theta$, dependent measurements of the microwave radiation-induced oscillatory magnetoresistance, $R_{xx}$, in high mobility GaAs/AlGaAs 2D electron devices have shown a $\theta$ dependence in the oscillatory amplitude along with magnetic field, frequency, and extrema-dependent phase shifts, ${\theta }_0$. Here, we suggest a microwave frequency dependence of ${\theta }_0(f)$ using an analysis that averages over other smaller contributions, when those contributions are smaller than estimates of the experimental uncertainty.

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