Multiquantum well spin oscillator

Details Multiquantum well spin oscillator Multiquantum well spin oscillator

2007-02-06

arxiv.org/abs/cond-mat/0702132v2

Appl. Phys. Lett. 91, 092102 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 2 figures, shortened and updated version

Scientific paper

10.1063/1.2775812

A dc voltage biased II-VI semiconductor multiquantum well structure attached to normal contacts exhibits self-sustained spin-polarized current oscillations if one or more of its wells are doped with Mn. Without magnetic impurities, the only configurations appearing in these structures are stationary. Analysis and numerical solution of a nonlinear spin transport model yield the minimal number of wells (four) and the ranges of doping density and spin splitting needed to find oscillations.

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