Magnetic Coupling in Self-Organized Narrow-Spaced Fe Nanowire Arrays

A. Sugawara, D. Streblechenko, Martha McCartney, M. R. Scheinfein, M. R. Scheinfein

    Research output: Contribution to journalArticlepeer-review

    18 Scopus citations

    Abstract

    Fe nanowire arrays have been grown on selforganized NaCl(l 10) gratings. The typical wire size is 42 nm x13 nm xlO|im, with a period of approximately 90 nm. The magnetic properties were dominated by a strong in-plane shape anisotropy. Coherent switching dominated the reversal process due to dipole coupling ascribed to narrow gaps between the wires. The small width and height of the individual wires prevented domain wall formation. Electron holography has been used to confirm the type of ferromagnetic coupling between the wires. Experimental results are compared with quantitative three-dimensional micromagnetics calculations.

    Original languageEnglish (US)
    Pages (from-to)1081-1083
    Number of pages3
    JournalIEEE Transactions on Magnetics
    Volume34
    Issue number4 PART 1
    DOIs
    StatePublished - 1998

    Keywords

    • Anisotropy
    • Demagnetization field
    • Ferromagnetism
    • Superparamagnetism

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Electrical and Electronic Engineering

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