Probabilistic behavior in subnanosecond spin transfer torque switching

K. Ito, T. Devolder, C. Chappert, M. J. Carey, J. A. Katine

研究成果: Article

10 引用 (Scopus)

抜粋

We studied the magnetization dynamics induced by spin transfer torque (STT) in CoFeRuCoFeCuNiFe nanopillars using Landau-Lifshitz-Gilbert micromagnetic simulations including the STT term given by Slonczewski [J. Magn. Magn. Mater. 159, L1 (1996)] and a Gaussian thermal random force. Our simulation results clearly show the probabilistic switching behavior. The antiparallel to parallel switching at 77 K requires a smaller overdrive current than at 300 K. The parallel to antiparallel switching is not dependent on temperature. Our results show that C-like bending induced by the Ampere field plays an important role rather than the misalignment which arises from the thermal magnetization fluctuation.

元の言語English
記事番号08G519
ジャーナルJournal of Applied Physics
99
発行部数8
DOI
出版物ステータスPublished - 2006 5 25

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • これを引用

    Ito, K., Devolder, T., Chappert, C., Carey, M. J., & Katine, J. A. (2006). Probabilistic behavior in subnanosecond spin transfer torque switching. Journal of Applied Physics, 99(8), [08G519]. https://doi.org/10.1063/1.2176869