Micromagnetic study of spin transfer switching with a spin polarization tilted out of the free layer plane

Gabriel D. Chaves-O'Flynn, Georg Wolf, Daniele Pinna, Andrew D. Kent

    Research output: Contribution to journalArticlepeer-review

    Abstract

    We present the results of zero temperature macrospin and micromagnetic simulations of spin transfer switching of thin film nanomagnets in the shape of an ellipse with a spin-polarization tilted out of the layer plane. The perpendicular component of the spin-polarization is shown to increase the reversal speed, leading to a lower current for switching in a given time. However, for tilt angles larger than a critical angle, the layer magnetization starts to precess about an out-of-plane axis, which leads to a final magnetization state that is very sensitive to simulation conditions. As the ellipse lateral size increases, this out-of-plane precession is suppressed, due to the excitation of spatially non-uniform magnetization modes.

    Original languageEnglish (US)
    Article number17D705
    JournalJournal of Applied Physics
    Volume117
    Issue number17
    DOIs
    StatePublished - May 7 2015

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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