Magnetoresistance DELTA rho / rho o of a two dimensional electron gas as N-AlGaAs/GaAs heterojunction interfaces and superlattices is studied for the magnetic field, B//y, parallel to heterojunctions. DELTA rho / rho o at the interface is found to contain a term having linear dependence both on B//y and on electric field parallel to the current, E//x. This is ascribed to the deformation of wavefunction by the Lorentz force, which affects the electron scattering by impurities distributed only on one side of the interface. Similar measurement on superlattices is found effective in evaluating the possible asymmetry of the structure and the spatial distribution of scatterers.
|Number of pages||3|
|Journal||Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics|
|Issue number||Pt II|
|Publication status||Published - 1982 Jan 1|
|Event||Proc of the Inst Conf on the Phys of Semicond, 16th - Montpellier, Fr|
Duration: 1982 Sep 6 → 1982 Sep 10
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