Time-domain measurement of current-induced spin wave dynamics

Koji Sekiguchi, Keisuke Yamada, Soo Man Seo, Kyung Jin Lee, Daichi Chiba, Kensuke Kobayashi, Teruo Ono

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Abstract

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.

Original languageEnglish
Article number017203
JournalPhysical Review Letters
Volume108
Issue number1
DOIs
Publication statusPublished - 2012 Jan 5
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Sekiguchi, K., Yamada, K., Seo, S. M., Lee, K. J., Chiba, D., Kobayashi, K., & Ono, T. (2012). Time-domain measurement of current-induced spin wave dynamics. Physical Review Letters, 108(1), [017203]. https://doi.org/10.1103/PhysRevLett.108.017203