Electron scattering in quantum wells subjected to an in-plane magnetic field

Details Electron scattering in quantum wells subjected to an in-plane magnetic field Electron scattering in quantum wells subjected to an in-plane magnetic field

2007-11-15

arxiv.org/abs/0711.2407v1

Phys. Rev. B 77, 085328 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 1 figure

Scientific paper

10.1103/PhysRevB.77.085328

It is shown that the electron scattering by static defects, acoustic or optical phonons in quantum wells subjected to an in-plane magnetic field is asymmetric. The probability of scattering contains terms which are proportional to both the electron wave vector and the magnetic field components. The terms under study are caused by the lack of an inversion center in quantum wells due to structure or bulk inversion asymmetry although they are of pure diamagnetic origin. Such a magnetic field induced asymmetry of scattering can be responsible for a number of phenomena. In particular, the asymmetry of inelastic electron-phonon interaction leads to an electric current flow if only the electron gas is driven out of thermal equilibrium with the crystal lattice.

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