Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2012-01-12
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
9 pages, 6 figures
Scientific paper
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.
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