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Magneto-Optical Recording of Sputtered Garnet Films Crystallized during Deposition

Published online by Cambridge University Press:  21 February 2011

K. Shono ,
S. Kuroda ,
H. Kano ,
N. Koshino  and
S. Ogawa
K. Shono
Affiliation:
Fujitsu Laboratories Ltd., 10-1 Morinosato-Wakamiya, Atsugi 243-01 Japan
S. Kuroda
Affiliation:
Fujitsu Laboratories Ltd., 10-1 Morinosato-Wakamiya, Atsugi 243-01 Japan
H. Kano
Affiliation:
Fujitsu Laboratories Ltd., 10-1 Morinosato-Wakamiya, Atsugi 243-01 Japan
N. Koshino
Affiliation:
Fujitsu Laboratories Ltd., 10-1 Morinosato-Wakamiya, Atsugi 243-01 Japan
S. Ogawa
Affiliation:
Fujitsu Laboratories Ltd., 10-1 Morinosato-Wakamiya, Atsugi 243-01 Japan
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Abstract

In-situ crystallized Bi,Ga:DyIG films were deposited on GGG substrates by sputtering. The films had quite smooth surfaces and showed square hysteresis loops with high coercivity. Dynamic recording was carried out using an Ar laser. The figure of merit of the disk with an Al reflector was about 10 times larger than that of amorphous rare-earth transition metal magneto-optic films. A CNR as high as 54 dB was obtained for a bit length of 1.4 μm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 150: Symposium F – Materials for Magneto-Optic Data Storage , 1989 , 131
Copyright
Copyright © Materials Research Society 1989

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References

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