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Proceedings Paper

Study on magnetic and magneto-optical properties of Bi, Al (or Ga)-substituted garnet films for magneto-optical recording
Author(s): Yongzong Zhou; Defang Shen; Fuxi Gan
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Paper Abstract

Al and Ga-substituted Bi:DyIG films have been prepared on glass substrates by pyrolysis method. The magnetic and magneto-optical properties of Al or Ga-substituted garnet films have been investigated in detail. Al or Ga-substituted Bi:DyIG films have high coercive force and good Faraday hysteresis loops. At the wavelength of 510 nm, the Faraday rotation angle was about 8 degree(s)/micrometers for the optimum Al or Ga content of 1 or 0.7, respectively. For optimum Al and Ga content, the crystallization temperatures were about 700 and 675 degree(s)C, respectively. X-ray diffraction pattern showed that the film was polycrystalline garnet phase without preferred crystal orientation.

Paper Details

Date Published: 13 August 1993
PDF: 5 pages
Proc. SPIE 2053, Optical Storage (ISOS '92), (13 August 1993); doi: 10.1117/12.150642
Show Author Affiliations
Yongzong Zhou, Shanghai Institute of Optics and Fine Mechanics (China)
Defang Shen, Shanghai Institute of Metallurgy (China)
Fuxi Gan, Shanghai Institute of Optics and Fine Mechanics (China)

Published in SPIE Proceedings Vol. 2053:
Optical Storage (ISOS '92)

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