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arXiv · 0806.3843

Signal propagation in time-dependent spin transport

Yao-Hui Zhu·Burkard Hillebrands·Hans Christian Schneider
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Abstract

This paper analyzes theoretically the signal propagation in spin transport by modulating the current passing through magnetic multilayers. Using a macroscopic description of spin transport based on the dynamical Boltzmann equation, we show that time-dependent spin transport possesses a wave-like character that leads to modifications of pure spin-diffusion dynamics. In particular, the wave-like characteristics allow one to extract a finite spin signal-propagation velocity.

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Yao-Hui Zhu, Burkard Hillebrands, Hans Christian Schneider. 2008-08-12. Signal propagation in time-dependent spin transport. https://doi.org/10.1103/physrevb.78.054429

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