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arXiv · 0811.4597

Nonlinear transport and oscillating magnetoresistance in double quantum wells

N. C. Mamani·G. M. Gusev·O. E. Raichev·T. E. Lamas·A. K. Bakarov
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Abstract

We study the evolution of low-temperature magnetoresistance in double quantum wells in the region below 1 Tesla as the applied current density increases. A flip of the magneto-intersubband oscillation peaks, which occurs as a result of the current-induced inversion of the quantum component of resistivity, is observed. We also see splitting of these peaks as another manifestation of nonlinear behavior, specific for the two-subband electron systems. The experimental results are quantitatively explained by the theory based on the kinetic equation for the isotropic non-equilibrium part of electron distribution function. The inelastic scattering time is determined from the dependence of the inversion magnetic field on the current.

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N. C. Mamani, G. M. Gusev, O. E. Raichev, T. E. Lamas, A. K. Bakarov. 2008-11-27. Nonlinear transport and oscillating magnetoresistance in double quantum wells. https://doi.org/10.1103/physrevb.80.075308

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