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 journalArticle

    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

    Fingerprint

    ellipses
    magnetization
    polarization
    low currents
    precession
    simulation
    thin films
    excitation
    temperature

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Micromagnetic study of spin transfer switching with a spin polarization tilted out of the free layer plane. / Chaves-O'Flynn, Gabriel D.; Wolf, Georg; Pinna, Daniele; Kent, Andrew D.

    In: Journal of Applied Physics, Vol. 117, No. 17, 17D705, 07.05.2015.

    Research output: Contribution to journalArticle

    Chaves-O'Flynn, Gabriel D. ; Wolf, Georg ; Pinna, Daniele ; Kent, Andrew D. / Micromagnetic study of spin transfer switching with a spin polarization tilted out of the free layer plane. In: Journal of Applied Physics. 2015 ; Vol. 117, No. 17.
    @article{1c4119a4d51b4a2ea4b4ccf3d5d7f47c,
    title = "Micromagnetic study of spin transfer switching with a spin polarization tilted out of the free layer plane",
    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.",
    author = "Chaves-O'Flynn, {Gabriel D.} and Georg Wolf and Daniele Pinna and Kent, {Andrew D.}",
    year = "2015",
    month = "5",
    day = "7",
    doi = "10.1063/1.4907241",
    language = "English (US)",
    volume = "117",
    journal = "Journal of Applied Physics",
    issn = "0021-8979",
    publisher = "American Institute of Physics Publising LLC",
    number = "17",

    }

    TY - JOUR

    T1 - Micromagnetic study of spin transfer switching with a spin polarization tilted out of the free layer plane

    AU - Chaves-O'Flynn, Gabriel D.

    AU - Wolf, Georg

    AU - Pinna, Daniele

    AU - Kent, Andrew D.

    PY - 2015/5/7

    Y1 - 2015/5/7

    N2 - 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.

    AB - 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.

    UR - http://www.scopus.com/inward/record.url?scp=84923673581&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=84923673581&partnerID=8YFLogxK

    U2 - 10.1063/1.4907241

    DO - 10.1063/1.4907241

    M3 - Article

    AN - SCOPUS:84923673581

    VL - 117

    JO - Journal of Applied Physics

    JF - Journal of Applied Physics

    SN - 0021-8979

    IS - 17

    M1 - 17D705

    ER -