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

16 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 - Dec 1 1998

Keywords

  • Anisotropy
  • Demagnetization field
  • Ferromagnetism
  • Superparamagnetism

ASJC Scopus subject areas

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

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