Anisotropic spin-wave patterns generated by spin-torque nano-oscillators

F. MacIà, A. D. Kent, F. C. Hoppensteadt

    Research output: Contribution to journalArticle

    Abstract

    Spin-wave excitations due to spin-momentum transfer in ferromagnetic thin films will enable new types of information processing and memory storage. Here, we show how arrays of spin-torque nano-oscillators (STNOs) can be used to create anisotropic spin-wave interference patterns, which can be used for information processing. We consider STNO arrays contacting a thin ferromagnetic film. Contacts to the film (including the STNOs themselves) can be used to detect the spin-waves and then, when coupled to a simple circuit, can create new excitation patterns. The propagating spin-wave patterns can be generated by pulsing transponders. Arrangements of transponders create resonant (reverberating) spin-wave activity-that may be the basis of polychronous wave computation of the arithmetic and Boolean functions as well as information storage.

    Original languageEnglish (US)
    Article number07C733
    JournalJournal of Applied Physics
    Volume109
    Issue number7
    DOIs
    StatePublished - Apr 1 2011

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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