Current-induced torques in magnetic materials

Arne Brataas, Andrew D. Kent, Hideo Ohno

    Research output: Contribution to journalArticle

    Abstract

    The magnetization of a magnetic material can be reversed by using electric currents that transport spin angular momentum. In the reciprocal process a changing magnetization orientation produces currents that transport spin angular momentum. Understanding how these processes occur reveals the intricate connection between magnetization and spin transport, and can transform technologies that generate, store or process information via the magnetization direction. Here we explain how currents can generate torques that affect the magnetic orientation and the reciprocal effect in a wide variety of magnetic materials and structures. We also discuss recent state-of-the-art demonstrations of current-induced torque devices that show great promise for enhancing the functionality of semiconductor devices.

    Original languageEnglish (US)
    Pages (from-to)372-381
    Number of pages10
    JournalNature Materials
    Volume11
    Issue number5
    DOIs
    StatePublished - May 2012

    Fingerprint

    Magnetic materials
    Induced currents
    magnetic materials
    torque
    Magnetization
    Torque
    magnetization
    Angular momentum
    angular momentum
    Magnetic structure
    Electric currents
    Semiconductor devices
    semiconductor devices
    electric current
    Demonstrations

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Mechanics of Materials
    • Condensed Matter Physics
    • Materials Science(all)
    • Chemistry(all)

    Cite this

    Brataas, A., Kent, A. D., & Ohno, H. (2012). Current-induced torques in magnetic materials. Nature Materials, 11(5), 372-381. https://doi.org/10.1038/nmat3311

    Current-induced torques in magnetic materials. / Brataas, Arne; Kent, Andrew D.; Ohno, Hideo.

    In: Nature Materials, Vol. 11, No. 5, 05.2012, p. 372-381.

    Research output: Contribution to journalArticle

    Brataas, A, Kent, AD & Ohno, H 2012, 'Current-induced torques in magnetic materials', Nature Materials, vol. 11, no. 5, pp. 372-381. https://doi.org/10.1038/nmat3311
    Brataas, Arne ; Kent, Andrew D. ; Ohno, Hideo. / Current-induced torques in magnetic materials. In: Nature Materials. 2012 ; Vol. 11, No. 5. pp. 372-381.
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