Magnetic confinement and coupling in narrow-diameter Au-Ni nanowires

Laura T. Schelhas, Matthew J. Banholzer, Chad A. Mirkin*, Sarah H. Tolbert

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Here we examine magnetic coupling in layered magnetic/nonmagnetic nanowires created using electrochemical deposition into nanoporous templates. By utilizing reproducible and tunable deposition methods, various aspect ratios and spacing between magnetic domains were created. Low aspect ratio disks were then coupled to high aspect ratio rods to control the mechanism for spin flip in the disk component of the system. The orthogonal relationship between the magnetic easy axis of the disk and rod geometries creates a multistate system with both in-plane and out-of-plane easy axes by balancing magnetic shape anisotropy with dipole coupling between the two layers.

Original languageEnglish (US)
Pages (from-to)239-243
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume379
DOIs
StatePublished - Jan 4 2015

Keywords

  • AAO
  • Anodic alumina
  • Nano-magnets
  • Ni-Au nanowires
  • Shape anisotropy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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