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Spin-Voltaic Effect and its Implications

Igor Zutic·Jaroslav Fabian
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Abstract

In an inhomogeneously doped magnetic semiconductor, an interplay between an equilibrium magnetization and injected nonequilibrium spin leads to the spin-voltaic effect--a spin analogue of the photo-voltaic effect. By reversing either the sign of the equilibrium magnetization or the direction of injected spin polarization it is possible to switch the direction of charge current in a closed circuit or, alternatively, to switch the sign of the induced open-circuit voltage. Properties of the spin-voltaic effect can be used to perform all-electrical measurements of spin relaxation time and injected spin polarization, as well as to design devices with large magnetoresistance and spin-controlled amplification.

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Igor Zutic, Jaroslav Fabian. 2003-04-22. Spin-Voltaic Effect and its Implications. https://arxiv.org/abs/cond-mat/0304472

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