Non-linear magnetotransport in microwave-illuminated two-dimensional electron systems

Abstract

We study magnetoresistivity oscillations in a high-mobility two-dimensional electron system subject to both microwave and dc electric fields. First, we observe that the oscillation amplitude is a periodic function of the inverse magnetic field and is strongly suppressed at microwave frequencies near half-integers of the cyclotron frequency. Second, we obtain a complete set of conditions for the differential resistivity extrema and saddle points. These findings indicate the importance of scattering without microwave absorption and a special role played by microwave-induced scattering events antiparallel to the electric field.

4 pages, 4 figures

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Cited by in corpus (10)

• Mechanisms of the microwave photoconductivity in 2D electron systems with mixed disorder
• Temperature Dependence of Microwave Photoresistance in 2D Electron Systems
• Phase study of oscillatory resistances in microwave-irradiated- and dark- GaAs/AlGaAs devices: Indications of a new class of integral quantum Hall effect
• Role of electron-electron interactions in nonlinear transport in 2D electron systems
• Effect of microwave radiation on non-linear resistivity of a two-dimensional electron gas at large filling factors
• Microwave Photoresistance in dc-driven 2D Systems at Cyclotron Resonance Subharmonics
• Nonlinear resistance of 2D electrons in crossed electric and 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
• Nonlinear magnetoresistance of an irradiated two-dimensional electron system