MEAN-FIELD ANALYSIS OF AMORPHOUS RARE EARTH-TRANSITION METAL ALLOYS FOR THERMOMAGNETIC RECORDING.

Masud Mansuripur, M. F. Ruane

Research output: Contribution to journalArticlepeer-review

94 Scopus citations

Abstract

A mean-field model is developed for amorphous ferromagnetic materials with potential applications in thermomagnetic recording/magneto-optical readout systems. The emphasis is on the reduction of the number of adjustable parameters, so that important variables and their effects on magnetic properties can be investigated. The available experimental data on GdCo-, GdFe-, and TbFe-based alloys are compared with the model predictions, and good agreement is obtained in all cases. Expressions for the exchange stiffness coefficient and macroscopic anisotropy energy constant are derived and the latter is compared with available experimental data. The results have been used to study domain wall characteristics of the three material systems.

Original languageEnglish (US)
Pages (from-to)33-43
Number of pages11
JournalIEEE Transactions on Magnetics
VolumeMAG-22
Issue number1
DOIs
StatePublished - 1986
Externally publishedYes

ASJC Scopus subject areas

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

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