Journal
PHYSICAL REVIEW B
Volume 78, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.78.054429
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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.
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