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Proceedings Paper

Switching process for thermomagneto-optical recording and its relation to material properties and preparation conditions of thin films
Author(s): Dieter Mergel; P. Hansen; S. Klahn; W. B. Zeper
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Paper Abstract

A list of requircments on magnetic films suitable for magneto-optic recording is deduced from a series of test-recorder expeliments with rare-earth transition-metal based disks concerning the write process and the domain stability in dependence on the laser power and the external magnetic field. The most important features are: perpendicular magnetic anisotropy, steep coercivity Hem, medium saturation magneüzation, and a fine microstructwe. The prospects of polycrystalline garnet films to meet these requirements are then discussed with emphasis on how the relevant magneticproperties and the microstructure canbe influenced by the chemical composition and the preparationprocess (pyrolysis and if-sputtering).

Paper Details

Date Published: 1 August 1990
PDF: 12 pages
Proc. SPIE 1274, Electro-Optic and Magneto-Optic Materials II, (1 August 1990); doi: 10.1117/12.20504
Show Author Affiliations
Dieter Mergel, Philips Research Labs. (Germany)
P. Hansen, Philips Research Labs. (Germany)
S. Klahn, Philips Research Labs. (Germany)
W. B. Zeper, Philips Research Labs. (Netherlands)


Published in SPIE Proceedings Vol. 1274:
Electro-Optic and Magneto-Optic Materials II
Hans Dammann, Editor(s)

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