High-speed coherent switching in fine grains

A. Lyberatos, S. Khizroev, D. Litvinov

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations


The effect of the relative head-to-medium velocity on the switching dynamics of individual grains is studied using the Landau-Lifshitz-Gilbert equation of motion. The coercive field of a grain may increase or decrease with velocity depending on the direction of crystal anisotropy. An asymmetry is present and the coercivity of an ensemble of grains with random in-plane anisotropy is found to increase, in agreement with measurements on a CoCr longitudinal magnetic recording medium.

Original languageEnglish (US)
Pages (from-to)1369-1372
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number4 I
StatePublished - Jul 2001
Externally publishedYes
Event8th Joint Magnetism and Magnetic Materials -International Magnetic Conference- (MMM-Intermag) - San Antonio, TX, United States
Duration: Jan 7 2001Jan 11 2001


  • High-speed switching
  • Single domain

ASJC Scopus subject areas

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


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