Switching Mechanism of Single Domain Particles in a Two-dimensional Array

M. Pardavi-Horvath, G. Vertesy, B. Keszei, Z. Vertesy, R. D. McMichael

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The mechanism of switching of uniaxial, single domain, single crystalline epitaxial garnet particles on a 2D square array was investigated. The anisotropy field of the sample is 2 kOe, while the gaussian switching field distribution is 280 ±85 Oe. The dominant contribution to the incoherent switching is from inhomogeneous internal fields and canted moments at the corners and edges, where the switching starts. The interaction fleJd with the surrounding particles, reduced nucleation barriers at crystalline defects, thermal activation, and dynamical effects in FMR also contribute to the observed switching field and its standard deviation,.

Original languageEnglish
Pages (from-to)3871-3873
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 2
DOIs
Publication statusPublished - Dec 1 1999

Keywords

  • Coercivity
  • Magnetization switching
  • Single domain particles

ASJC Scopus subject areas

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

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