Micromagnetic calculation of spin transfer torque in Co/Cu multilayer nanowires

Stephanie Hernndez, Liwen Tan, Bethanie J.H. Stadler, R. H. Victora

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An approach for calculating spin transfer torque including interfacial scattering effects in structures consisting of multiple ferromagnet/nonmagnet (FM/NM) bilayers was developed. Using this approach, a micromagnetic analysis on structures consisting of six magnetic layers was compared to electrical measurements on electrodeposited Co/Cu multilayered nanowires. Good agreement with experiment was achieved if it was assumed that one of the layers is magnetically fixed. An array of 16 wires, each consisting of 6 FM/NM bilayers, was also micromagnetically modeled and compared to a similar experimental measurement. Both results confirm that including a wide distribution of wires results in a less uniform switching mechanism.

Original languageEnglish (US)
Article number07C916
JournalJournal of Applied Physics
Issue number7
StatePublished - Apr 1 2011

Bibliographical note

Funding Information:
This work was supported primarily by the MRSEC program of the National Science Foundation under award DMR-0819885 and by the University of Minnesota Supercomputing Institute.


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