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 wavelike character that leads to modifications of pure spin-diffusion dynamics. In particular, the wavelike characteristics allow one to extract a finite spin signal-propagation velocity.
3 More- Received 20 June 2008
DOI:https://doi.org/10.1103/PhysRevB.78.054429
©2008 American Physical Society