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On the theory of magnetotransport in a periodically modulated two-dimensional electron gas

✍ Scribed by Natalya A. Zimbovskaya

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
122 KB
Volume
128
Category
Article
ISSN
0038-1098

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✦ Synopsis

A semiclassical theory based on the Boltzmann transport equation for a two-dimensional electron gas modulated along one direction with weak electrostatic or magnetic modulations is proposed. It is shown that oscillations of the magnetoresistivity r k corresponding to the current driven along the modulation lines observed at moderately low magnetic fields, can be explained as classical geometric resonances reflecting the commensurability of the period of spatial modulations and the cyclotron radius of electrons.

πŸ“œ SIMILAR VOLUMES

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Quantum mechanical calculations of the magnetotransport coefficients of a modulated twodimensional electron gas in a perpendicular magnetic field are presented using the Kubo method. The model modulation potential used is such that the effect of the steepness of the potential and its strength on the

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An analysis of light scattering from a two-dimensional electron gas (2DEG) subject to a weak periodic magnetic modulation of strength B m and to a perpendicular uniform magnetic field B of arbitrary strength is presented. Raman spectra are calculated for (i) electron inter-Landau-level transitions,