Physics – Condensed Matter – Materials Science
Scientific paper
2008-12-22
Physics
Condensed Matter
Materials Science
7 pages, 4 figures
Scientific paper
Using a macroscopic analysis, we show that time-dependent noncollinear spin transport possesses a wavelike character. This leads to modifications of pure spin-diffusion dynamics and allows one to extract a finite spin-signal propagation velocity. We numerically study the dynamics of a pure spin current pumped into a nonmagnetic layer for precession frequencies ranging from GHz to THz.
Hillebrands Burkard
Schneider Hans Christian
Zhu Yao-Hui
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