Coulombic effects on magnetoconductivity oscillations induced by microwave excitation in multisubband two-dimensional electron systems
arXiv:1201.2498 · doi:10.1063/1.4723658
Abstract
We develop a theory of magneto-oscillations in photoconductivity of multisubband two-dimensional electron systems which takes into account strong Coulomb interaction between electrons. In the presence of a magnetic field oriented perpendicular, internal electric fields of fluctuational origin cause fast drift velocities of electron orbit centers which affect probabilities of inter-subband scattering and the photoconductivity. For the electron system formed on the liquid helium surface, internal forces are shown to suppress the amplitude of magneto-oscillations, and change positions of magnetoconductivity minima which evolve in zero-resistance states for high radiation power.
9 pages, 6 figures
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Cited by in corpus (10)
- Nonequilibrium phenomena in high Landau levels
- An incompressible state of a photo-excited electron gas
- Photo-Conductivity Response at Cyclotron-Resonance Harmonics in a Non-Degenerate 2D Electron Gas on Liquid Helium
- Density domains of a photo-excited electron gas on liquid helium
- Magneto-oscillations and anomalous current states in a photo-excited electron gas on liquid helium
- Photon-assisted scattering and magnetoconductivity oscillations in a strongly correlated 2D electron system formed on the surface of liquid helium
- The fine structure of microwave-induced magneto-oscillations in photoconductivity of the two-dimensional electron system formed on a liquid-helium surface
- Cyclotron-resonance-induced negative dc conductivity in a two-dimensional electron system on liquid helium
- Magnetoconductivity oscillations induced by intersubband excitation in a degenerate 2D electron gas
- Surface photocurrent in electron gas over liquid He subject to quantizing magnetic field