Switching process for thermomagneto-optical recording and its relation to material properties and preparation conditions of thin films

Dieter Mergel; P. Hansen; S. Klahn; W. B. Zeper

doi:10.1117/12.20504

1 August 1990 Switching process for thermomagneto-optical recording and its relation to material properties and preparation conditions of thin films

Dieter Mergel, P. Hansen, S. Klahn, W. B. Zeper

Author Affiliations +

Proceedings Volume 1274, Electro-Optic and Magneto-Optic Materials II; (1990) https://doi.org/10.1117/12.20504
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

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).

Citation Download Citation

Dieter Mergel, P. Hansen, S. Klahn, and W. B. Zeper "Switching process for thermomagneto-optical recording and its relation to material properties and preparation conditions of thin films", Proc. SPIE 1274, Electro-Optic and Magneto-Optic Materials II, (1 August 1990); https://doi.org/10.1117/12.20504

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