From zero resistance states to absolute negative conductivity in microwave irradiated 2D electron systems
arXiv:cond-mat/0512530 · doi:10.1063/1.2335408
Abstract
Recent experimental results regarding a 2D electron gas subjected to microwave radiation reveal that magnetoresistivity, apart from presenting oscillations and zero resistance states, can evolve to negative values at minima. In other words, the current can evolve from flowing with no dissipation, to flow in the opposite direction of the dc bias applied. Here we present a theoretical model in which the existence of radiation-induced absolute negative conductivity is analyzed. Our model explains the transition from zero resistance states to absolute negative conductivity in terms of multiphoton assisted electron scattering due to charged impurities. It shows as well, how this transition can be driven by tuning microwave frequency and intensity. Then it opens the possibility of controlling the electron Larmor orbits dynamics (magnetoconductivity) in microwave driven nanodevices. The analysis of zero resistance states is therefore promising because new optical and transport properties in nanodevices will be expected.
5 pages and 4 figures
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- Polarization immunity of magnetoresistivity response under Microwave excitation
- Effect of frequency and temperature on microwave-induced magnetoresistance oscillations in two-dimensional electron systems
- Magnetoresistivity Modulated Response in Bichromatic Microwave Irradiated Two Dimensional Electron Systems
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- Microwave-induced electron heating in the regime of radiation-induced magnetoresistance oscillations
- Driving Weiss oscillations to Zero Resistance States by Microwave Radiation
- Influence of linearly polarized radiation on magnetoresistance in irradiated two-dimensional electron systems
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- Microwave-induced resistance oscillations and zero-resistance states in 2D electron systems with two occupied subbands
- Theoretical model for negative giant magnetoresistance in ultra-high-mobility 2D electron systems
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- Radiation-induced resistance oscillations in a 2D hole gas: a demonstration of a universal effect
- Linear polarization study of microwave-radiation-induced magnetoresistance oscillations: Comparison of power dependence to theory
- 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
- Optical Conductivity Signatures of Floquet Electronic Phases
- 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
- Fourier transform analysis of irradiated Weiss oscillations
- Radiation-induced re-emission in a 2D electron system
- Beating pattern in radiation-induced oscillatory magnetoresistance in 2DES: coupling of plasmon-like and acoustic phonon modes