Weiss oscillations in the presence of small-angle impurity scattering

Details Weiss oscillations in the presence of small-angle impurity scattering Weiss oscillations in the presence of small-angle impurity scattering

1998-02-26

arxiv.org/abs/cond-mat/9802288v2

Phys. Rev. B, 58 (1998) 12986

Physics

Condensed Matter

Disordered Systems and Neural Networks

8 pages REVTEX, 2 figures included as eps files. Final version: minor changes, several references added, typo in Eq. (50) corr

Scientific paper

10.1103/PhysRevB.58.12986

We calculate the magnetoresistivity of a two-dimensional electron gas in the presence of a periodic potential within classical transport theory, using realistic models of impurity scattering. The magnetooscillations induced by geometric resonance of the cyclotron orbits in the periodic grating, known as Weiss oscillations, are shown to be affected strongly by the small-angle scattering processes dominant in conventional semiconductor heterostructures. Our results are in full agreement with experimental findings.

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