Magnetic localization in transition-metal nanowires

R. Skomski, H. Zeng, M. Zheng, D. Sellmyer

Research output: Contribution to journalArticle

135 Scopus citations

Abstract

Magnetization reversal in transition-metal nanowires is investigated. Model calculations explain why magnetization reversal is localized, as opposed to the sometimes assumed delocalized coherent-rotation and curling modes. The localization is a quite general phenomenon caused by morphological inhomogenities and occurring in both polycrystalline and single-crystalline wires. In the polycrystalline limit, the competition between interatomic exchange and anisotropy gives rise to a variety of random-anisotropy effects, whereas nearly single-crystalline wires exhibit a weak localization of the nucleation mode. Model predictions are used to explain the coercive and magnetic-viscosity behavior of Co (and Ni) nanowires electrodeposited in self-assembled alumina pores.

Original languageEnglish (US)
Pages (from-to)3900-3904
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume62
Issue number6
DOIs
StatePublished - 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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