Effect of rotation of the polarization of linearly polarized microwaves on the radiation-induced magnetoresistance oscillations
arXiv:1209.5808 · doi:10.1103/PhysRevB.85.205315
Abstract
Light-matter coupling is investigated by rotating, by an angle θ, the polarization of linearly polarized microwaves with respect to the long-axis of GaAs/AlGaAs Hall-bar electron devices. At low microwave power, P, experiments show a strong sinusoidal variation in the diagonal resistance R_{xx} vs. θat the oscillatory extrema, indicating a linear polarization sensitivity in the microwave radiation-induced magnetoresistance oscillations. Surprisingly, the phase shift θ_{0} for maximal oscillatory R_{xx} response under photoexcitation appears dependent upon the radiation-frequency f, the extremum in question, and the magnetic field orientation or sgn(B).
6 pages, 5 figures
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- Comparative study of microwave radiation-induced magnetoresistive oscillations induced by circularly- and linearly- polarized photo-excitation
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- Linear polarization study of microwave-radiation-induced magnetoresistance oscillations: Comparison of power dependence to theory
- Evolution of the linear-polarization-angle-dependence of the radiation-induced magnetoresistance-oscillations with microwave power
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- Frequency-dependent polarization-angle-phase-shift in the microwave-induced magnetoresistance oscillations