Microwave induced magnetoresistance oscillations at the subharmonics of the cyclotron resonance

Abstract

The magnetoresistance oscillations, which occur in a two-dimensional electron system exposed to strong microwave radiation when the microwave frequency $\omega$ coincides with the n-th subharmonic of the cyclotron frequency ${\omega }_c$ have been investigated for n = 2, 3 and 4. It is shown that these subharmonic features can be explained within a non-equilibrium energy distribution function picture without invoking multi-photon absorption processes. The existence of a frequency threshold above which such oscillations disappear lends further support to this explanation.

arXiv comment5 pages, 5 figures

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• Non-linear Magnetoresistance Oscillations in Intensely Irradiated Two-Dimensional Electron Systems Induced by Multi-Photon Processes
• Evidence for effective mass reduction in GaAs/AlGaAs quantum wells
• Microwave Photoresistance in dc-driven 2D Systems at Cyclotron Resonance Subharmonics
• Photo-current and photo-voltage oscillations in the two-dimensional electron system: screening and "anti-screening" of a potential profile
• Hall field-induced resistance oscillations in tilted magnetic fields
• Theory of the microwave-induced photocurrent and photovoltage magnetooscillations in a spatially non-uniform 2D electron gas
• Nonlinear theory of fractional microwave-induced magnetoresistance oscillations in a dc-driven two-dimensional electron system
• High order fractional microwave induced resistance oscillations in 2D systems
• Microwave-induced magnetoresistance of two-dimensional electrons interacting with acoustic phonons
• Shubnikov-de Haas oscillations in two-dimensional electron gas under subterahertz radiation
• Fine structure of high-power microwave-induced resistance oscillations
• Magnetoplasmon resonance in 2D electron system driven into a zero-resistance state
• Magneto-resistance oscillations induced by high-intensity terahertz radiation
• Multiphoton processes at cyclotron resonance subharmonics in a 2D electron system under DC and microwave excitation