Non-linear Resistivity of a Two-Dimensional Electron Gas in a Magnetic Field

Abstract

We develop a theory of nonlinear response to an electric field of a two-dimensional electron gas (2DEG) placed in a classically strong magnetic field. The latter leads to a non-linear current-voltage characteristic at a relatively weak electric field. The origin of the non-linearity is two-fold: the formation of a non-equilibrium electron distribution function, and the geometrical resonance in the inter-Landau-levels transitions rates. We find the dependence of the current-voltage characteristics on the electron relaxation rates in the 2DEG.

4 pages, 2 figures

References in corpus (3)

• Theory of microwave-induced oscillations in the magnetoconductivity of a 2D electron gas
• Magnetotransport in a two-dimensional electron system in dc electric fields
• Current-induced magnetoresistance oscillations in two-dimensional electron systems

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