Microwave-induced electron heating in the regime of radiation-induced magnetoresistance oscillations

Abstract

We examine the influence of microwave photoexcitation on the amplitude of Shubnikov-de Haas (SdH) oscillations in a two dimensional GaAs/AlGaAs electron system in a regime where the cyclotron frequency, ${\omega }_c$, and the microwave angular frequency, $\omega$, satisfy $2\omega \le {\omega }_c\le 3.5\omega$. A SdH lineshape analysis indicates that increasing the incident microwave power has a weak effect on the amplitude of the SdH oscillations, in comparison to the influence of modest temperature changes on the dark-specimen SdH effect. The results indicate negligible electron heating under modest microwave photoexcitation, in good agreement with theoretical predictions.

5 pages, 4 color figures

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Cited by in corpus (10)

• Observation of linear-polarization-sensitivity in the microwave-radiation-induced magnetoresistance oscillations
• Effect of rotation of the polarization of linearly polarized microwaves on the radiation-induced magnetoresistance oscillations
• Magneto-transport characteristics of a 2D electron system driven to negative magneto-conductivity by microwave photoexcitation
• Combined study of microwave-power/linear-polarization dependence of the microwave-radiation-induced magnetoresistance oscillations in GaAs/AlGaAs devices
• Comparative study of microwave radiation-induced magnetoresistive oscillations induced by circularly- and linearly- polarized photo-excitation
• Remotely sensed transport in microwave photoexcited GaAs/AlGaAs two-dimensional electron system
• Microwave-mediated heat transport through a quantum dot
• Remote sensor response study in the regime of the microwave radiation-induced magnetoresistance oscillations
• 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