Anharmonic behavior in Microwave-driven resistivity oscillations in Hall bars

Abstract

We analyzed the magnetoresistivity of a two-dimensional electron system excited by microwave radiation in a regime of high intensities and low frequencies. In such a regime, recent experiments show that different features appear in the magnetoresistivity response which suggest an anharmonic behavior. These features consist mainly in distorted oscillations and new resonance peaks at the subharmonics of the cyclotron frequency. We follow the model of microwave-driven electron orbits motion which become anharmonic when the ratio of microwave intensity to microwave frequency is large enough.

3 pages, 2 figures. Accepted in Applied Physics Letters

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Cited by in corpus (15)

• Sub-linear radiation power dependence of photo-excited resistance oscillations in two-dimensional electron systems
• Effect of frequency and temperature on microwave-induced magnetoresistance oscillations in two-dimensional electron systems
• Microwave-induced electron heating in the regime of radiation-induced magnetoresistance oscillations
• Effect of a in-plane magnetic field on the microwave assisted magnetotransport in a two-dimensional electron system
• Driving Weiss oscillations to Zero Resistance States by Microwave Radiation
• Evidence of radiation-driven Landau states in 2D electron systems: magnetoresistance oscillations phase shift
• Microwave-induced off-resonance giant magnetoresistance in ultraclean two-dimensional electron systems
• Microscopic theory for radiation-induced Zero-Resistance States in 2D electron systems: Franck-Condon blockade
• Radiation-induced magnetoresistance oscillations with massive Dirac fermions
• Resonance peak shift in the photo-current of ultrahigh-mobility two-dimensional electron systems
• Multiple photoexcitation of two-dimensional electron systems: bichromatic magnetoresistance oscillations revisited
• Plasmon phenomena as origin of DC-current induced resistivity oscillations in two-dimensional electron systems
• Beating pattern in radiation-induced oscillatory magnetoresistance in 2DES: coupling of plasmon-like and acoustic phonon modes
• Radiation-induced re-emission in a 2D electron system
• Fourier transform analysis of irradiated Weiss oscillations