Frequency-dependent polarization-angle-phase-shift in the   microwave-induced magnetoresistance oscillations
  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. 
Han-Chun Liu, Tianyu Ye, W. Wegscheider, and R. G. Mani
cond-mat.mes-hall