Amorphous Thin Film Disk For Magneto-Optical Memory

Yuji Togami; Kikuo Kabayashi; Masako Kajiura; Katsuaki Sato; Teruo Teranishi

doi:10.1117/12.933396

27 May 1982 Amorphous Thin Film Disk For Magneto-Optical Memory

Yuji Togami, Kikuo Kabayashi, Masako Kajiura, Katsuaki Sato, Teruo Teranishi

Proceedings Volume 0329, Optical Disk Technology; (1982) https://doi.org/10.1117/12.933396
Event: 1982 Los Angeles Technical Symposium, 1982, Los Angeles, United States

Abstract

Amorphous rare earth-transition metal films as media of magneto-optical memory are described. Improvements of amorphous GdCo film in stabilizing recorded bits and in making uniform film were performed. High speed recording and reading experiment were carried out on GdCo disk of 150 mm in diameter, and excellent stability of recorded bits, considerable uniformity, and high sensitivity for recording were confirmed. Thermal stability and spectra of Kerr rotation angle of GdCo film were also measured. It is shown that GdCo film is very promising material for magneto-optical memory.

Citation Download Citation

Yuji Togami, Kikuo Kabayashi, Masako Kajiura, Katsuaki Sato, and Teruo Teranishi "Amorphous Thin Film Disk For Magneto-Optical Memory", Proc. SPIE 0329, Optical Disk Technology, (27 May 1982); https://doi.org/10.1117/12.933396

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