Time-domain measurement of current-induced spin wave dynamics.
The performance of spintronic devices critically depends on three material parameters, namely, the spin polarization in the current (P), the intrinsic Gilbert damping (α), and the coefficient of the nonadiabatic spin transfer torque (β). However, there has been no method to determine these crucial material parameters in a self-contained manner. Here we show that P, α, and β can be simultaneously determined by performing a single series of time-domain measurements of current-induced spin wave dynamics in a ferromagnetic film.
Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan.
Koji
K
Sekiguchi
Keisuke
K
Yamada
Soo-Man
SM
Seo
Kyung-Jin
KJ
Lee
Daichi
D
Chiba
Kensuke
K
Kobayashi
Teruo
T
Ono