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arXiv · 1005.2087

Proposal for a ferromagnetic multiwell spin oscillator

Christian Ertler·Walter Pötz·Jaroslav Fabian
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Abstract

The highly nonlinear coupling of transport and magnetic properties in a multiwell heterostructure, which comprises ferromagnetic quantum wells made of diluted magnetic semiconductors, is theoretically investigated. The interplay of resonant tunneling and carrier-mediated ferromagnetism in the magnetic wells induces very robust, self-sustained current and magnetization oscillations. Over a large window of steady bias voltages the spin polarization of the collector current is oscillating between positive and negative values, realizing a spin oscillator device.

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Christian Ertler, Walter Pötz, Jaroslav Fabian. 2010-05-12. Proposal for a ferromagnetic multiwell spin oscillator. https://doi.org/10.1063/1.3469999

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