Magneto-Optical Recording Characteristics of TbFeCo Media by Magnetic Field Modulation Method
- 1 February 1987
- journal article
- Published by IOP Publishing in Japanese Journal of Applied Physics
- Vol. 26 (2R)
- https://doi.org/10.1143/jjap.26.231
Abstract
To determine the most suitable composition for a magnetic field modulation recording, we investigated the static and dynamic recording (optical modulation method) characteristics of a TbFeCo film relative to an external magnetic field. It was made clear that the demagnetizing field is the chief determinant of the external magnetic field intensity and that a medium with a compensation temperature between room temperature and about 100°C is suitable for magnetic field modulation recording. AC/N of 50 dB was obtained by modulating the external magnetic field at 500 kHz. An overwriting on the pre-signal was completely realized up to the frequency of 500 kHz.Keywords
This publication has 9 references indexed in Scilit:
- Magneto-optical recording on amorphous filmsIEEE Transactions on Magnetics, 1985
- Dynamic read/write characteristics of magneto-optical TbFeCo and DyFeCo diskIEEE Transactions on Magnetics, 1984
- Erasable magneto-optical recording mediaIEEE Transactions on Magnetics, 1984
- Magnetic, magneto-optic and switching properties of amorphous GdFeSn-alloysIEEE Transactions on Magnetics, 1980
- Magnetic properties and curie point writing in amorphous metallic filmsIEEE Transactions on Magnetics, 1976
- Thermomagnetic writing in Tb-Fe filmsIEEE Transactions on Magnetics, 1976
- Magnetic Materials for Optical RecordingApplied Optics, 1974
- Amorphous metallic films for magneto-optic applicationsApplied Physics Letters, 1973
- Exact Solutions for the Temperature Rise in a Laser-Heated SlabJournal of Applied Physics, 1972