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Electron-phonon drag effect at 2D Landau levels

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<mark>Journal publication date</mark>16/11/1992
<mark>Journal</mark>Journal of Physics: Condensed Matter
Issue number46
Number of pages12
Pages (from-to)9201-9212
<mark>Original language</mark>English


We propose a theory of the electron-phonon drag effect in an ideally pure 2D system under a quantizing magnetic field. Two situations are considered, i.e. when phonons are (i) those of a diffusive heat flow and (ii) those of a focused ballistic beam. In the first case, we calculate the drag current for different asymptotical temperature intervals and give its relation to the phonon-scattering-induced conductivity. For the 2D gas illuminated by a hot beam of phonons, we analyse the manifestation of their cyclotron absorption both in the drag and in the beam-activated conductivity.