Photovoltaic Oscillations Due to Edge-Magnetoplasmon Modes in a Very-High Mobility 2D Electron Gas

Abstract

Using very-high mobility GaAs/AlGaAs 2D electron Hall bar samples, we have experimentally studied the photoresistance/photovoltaic oscillations induced by microwave irradiation in the regime where both 1/B and B-periodic oscillations can be observed. In the frequency range between 27 and 130 GHz we found that these two types of oscillations are decoupled from each other, consistent with the respective models that 1/B oscillations occur in bulk while the B-oscillations occur along the edges of the Hall bars. In contrast to the original report of this phenomenon (Ref. 1) the periodicity of the B-oscillations in our samples are found to be independent of L, the length of the Hall bar section between voltage measuring leads.

arXiv comment4 pages, 4 figures

References in corpus (8)

• Evidence for a New Dissipationless Regime in 2D Electronic Transport
• Theory of microwave-induced oscillations in the magnetoconductivity of a 2D electron gas
• Dynamical symmetry breaking as the origin of the zero-$dc$-resistance state in an $ac$-driven system
• Novel Edge Excitations of Two-dimensional Electron Liquid in a Magnetic Field
• New type of $B$-periodic magneto-oscillations in a two-dimensional electron system induced by microwave irradiation
• Influence of contacts on the microwave response of a two-dimensional electron stripe
• Density dependence of microwave induced magneto-resistance oscillations in a two-dimensional electron gas
• Propagation of edge magnetoplasmons in semiconductor quantum-well structures

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• Phase study of oscillatory resistances in microwave-irradiated- and dark- GaAs/AlGaAs devices: Indications of a new class of integral quantum Hall effect
• Sub-linear radiation power dependence of photo-excited resistance oscillations in two-dimensional electron systems
• Non-linear magnetotransport in microwave-illuminated two-dimensional electron systems
• Nonlinear resistance of 2D electrons in crossed electric and magnetic fields
• Hall field-induced resistance oscillations in tilted magnetic fields
• Microwave-induced electron heating in the regime of radiation-induced magnetoresistance oscillations
• Microwave-induced resistance oscillations and zero-resistance states in 2D electron systems with two occupied subbands
• Quantum lifetime of 2D electron in magnetic field
• Quantum oscillations of dissipative resistance in crossed electric and magnetic fields
• Photovoltage Detection of Edge Magnetoplasmon Oscillations and Giant Magnetoplasmon Resonances in A Two-Dimensional Hole System
• Multiple photoexcitation of two-dimensional electron systems: bichromatic magnetoresistance oscillations revisited
• Giant microwave-induced $B$-periodic magnetoresistance oscillations in a two-dimensional electron gas with a bridged-gate tunnel point contact