2008/06/30 by Yaohui Zhu, Yao-Hui Zhu, Burkard Hillebrands +2
Physics and Astronomy · #Atomic and Subatomic Physics Research #Boltzmann constant #Boltzmann equation #Computer science #Condensed matter physics #Diffusion #Magnetic properties of thin films #Physics #Quantum and electron transport phenomena #Quantum mechanics #SIGNAL (programming language) #Spin (aerodynamics) #Spin diffusion #Statistical physics #cond-mat.other
paper · pdf · doi:10.1103/physrevb.78.054429
10 pages, 10 figures, corrected typos (including numerical values)
arxiv created 2008/08/12 · openalex publication_date 2008/08/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.