Spin-dependent properties of a two-dimensional electron gas with ferromagnetic gates

Details Spin-dependent properties of a two-dimensional electron gas with ferromagnetic gates Spin-dependent properties of a two-dimensional electron gas with ferromagnetic gates

2002-05-30

arxiv.org/abs/cond-mat/0205651v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 pages, 2 figures, Replaced with revised version

Scientific paper

10.1063/1.1530737

A theoretical prediction of the spin-dependent electron self-energy and in-plane transport of a two-dimensional electron gas in proximity with a ferromagnetic gate is presented. The application of the predicted spin-dependent properties is illustrated by the proposal of a device configuration with two neighboring ferromagnetic gates which produces a magnetoresistance effect on the channel current generated by nonmagnetic source and drain contacts. Specific results are shown for a silicon inversion layer with iron gates. The gate leakage current is found to be beneficial to the spin effects.

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