Open AccessA STUDY ON MANGETO-OPTICAL PROPERTIES AND INTERFERECT EFFECT OF Bi SUBSTITUTED DyIG SPUTTERED THIN FILMS
Author(s) -
Shen De-Fang,
Tao Du,
Lijuan Wang,
Zhang Wei-Zhu
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.653
Subject(s) - materials science , thin film , faraday effect , coercivity , sputtering , wavelength , recording media , thermal , optoelectronics , optics , condensed matter physics , nanotechnology , magnetic field , multimedia , physics , quantum mechanics , meteorology , computer science
Bi substitute DyIG thin films having high coercive force and good squareness have been prepared on glass substrates by sputtering. The Faraday rotation amounts to about 7.5°/μm at wavelength of 500 nm. The magnetic domains are stable after thermal magnetic recording. The interference of magnetooptical thin films is investigated when the surface of films is deposited with different metals. Using this charecteristics the optimum disign for garnet recording discs can be achieved.