Improvement in optical and magnetic properties of Bi-substituted garnet sputtered films for magneto-optical recording
- 15 April 1988
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 63 (8) , 3642-3644
- https://doi.org/10.1063/1.340669
Abstract
We have investigated the effect on the optical and magnetic properties of adding W or Co to Bi-substituted garnet films sputtered on glass substrates. Adding a small amount (<1.2 at. %) of W makes the film optically homogeneous. It also increases coercivity more than three times, probably due to wall pinning by W atoms. Adding Co reduces coercivity. On the thin film with added W, we have successfully performed a dynamic thermomagnetic writing with a regular bit shape. This promotes development of magneto-optical memory using garnet sputtered film.This publication has 8 references indexed in Scilit:
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