Domain wall fringe field coupled spin logic

Yu Ming Hung, Andrew D. Kent

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A class of spin logic devices based on the spin-orbit induced spin-transfer torques requires magnetic coupling between electrically isolated ferromagnetic elements. Here we use micromagnetic modeling to study the magnetic coupling induced by fringe fields from chiral domain walls in perpendicularly magnetized nanowires. These domains can be displaced using spin-orbit torques from a proximal heavy metal layer. For a 16 nm width wire that is 1 nm thick, we find that spin-orbit torques induced domain wall propagation can reliably switch a proximal 16 nm diameter 1 nm thick nanomagnet. These results show a promising means of implementing spin logic with spin-orbit torques using elements with perpendicular magnetization, which does not require an applied magnetic field.

    Original languageEnglish (US)
    Article number125118
    JournalAIP Advances
    Volume6
    Issue number12
    DOIs
    StatePublished - Dec 1 2016

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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