Microwave-induced suppression of dissipative conductivity and its Shubnikov -- de Haas oscillations in two-dimensional electron systems: Effect of dynamic electron localization

Abstract

We present a model for microwave photoconductivity in two-dimensional electron systems (2DESs) in a magnetic field at the microwave frequencies lower that the electron cyclotron frequency when the intra-Landau level (LL) transitions dominate. Using this model, we explain the effect of decrease in the 2DES dissipative conductivity (and resistivity) and smearing of its Shubnikov -- de Haas oscillations by microwave radiation observed recently \cite{1,2}. The model invokes the concept of suppression of elastic impurity scattering of electrons by the microwave electric field. We calculated the dependence of the 2DES conductivity associated with intra-LL transitions as a function of the radiation and cyclotron frequencies and microwave power. The obtained dependences are consistent with the results of recent experimental observations \cite{1,2}.

7 pages, 3 figures

References in corpus (13)

• Evidence for a New Dissipationless Regime in 2D Electronic Transport
• Dynamical symmetry breaking as the origin of the zero-$dc$-resistance state in an $ac$-driven system
• Magnetotransport in two-dimensional electron gas at large filling factors
• Microwave-induced magnetotransport phenomena in two-dimensional electron systems: Importance of electrodynamic effects
• Absolute Negative Conductivity in Two-Dimensional Electron Systems Associated with Acoustic Scattering Stimulated by Microwave Radiation
• Microwave Photoconductivity in Two-Dimensional Electron Systems due to Photon-Assisted Interaction of Electrons with Leaky Interface Phonons
• Current-voltage characteristics and the zero-resistance state in a 2DEG
• Absolute negative conductivity and zero-resistance states in two dimensional electron systems: A plausible scenario
• Electric-Field Breakdown of Absolute Negative Conductivity and Supersonic Streams in Two-Dimensional Electron Systems with Zero Resistance/Conductance States
• Microwave absorption/reflection and magneto-transport experiments on high-mobility electron gas
• Microwave modulation of electron temperature and Shubnikov-de Haas oscillation in two-dimensional electron systems
• Radiation induced oscillations of the Hall resistivity in two-dimensional electron systems
• Low-frequency conductivity of a non-degenerate 2D electron liquid in strong magnetic fields

Cited by in corpus (9)

• Theory of the microwave induced zero resistance states in two-dimensional electron systems
• Influence of contacts on the microwave response of a two-dimensional electron stripe
• Nonlinear Current of Strongly Irradiated Quantum Hall Gas
• Multiple and virtual photon processes in radiation-induced magnetoresistance oscillations in two-dimensional electron systems
• Microwave photoconductivity of a periodically modulated two-dimensional electron system: Striped states and overlapping Landau levels
• Magnetoresistance oscillations in two-dimensional electron systems under monochromatic and bichromatic radiations
• Radiation-induced magnetoresistance oscillations in two-dimensional electron systems under bichromatic irradiation
• 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