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

Masud Mansuripur; M. F. Ruane

doi:10.1109/tmag.1986.1064266

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

Masud Mansuripur, M. F. Ruane

Research output: Contribution to journal › Article › peer-review

121 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 language	English (US)
Pages (from-to)	33-43
Number of pages	11
Journal	IEEE Transactions on Magnetics
Volume	MAG-22
Issue number	1
DOIs	https://doi.org/10.1109/tmag.1986.1064266
State	Published - 1986
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/tmag.1986.1064266

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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.",

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AB - 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.

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

Abstract

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