Control of parameters in rare earth-transition metal alloys for magneto-optical recording media
- 1 January 1987
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 23 (1) , 165-167
- https://doi.org/10.1109/tmag.1987.1064791
Abstract
During writing is the approach to the Curie temperature. In compensation-point writing, the Curie Temperature is high and writing The techniques which can be used to control the magnetic and occurs when the temperature in the heated spot increases sufficiently magneto-optical recording properties of sputtered amorphous thin films above the compensation temperature that the coercivity is low. containing Fe,Co,Tb and Gd are reviewed. It is shown that by proper selection of composition one may independently vary the Curie temperature, the compensation temperature, and coercivity. On-the- other-hand it is shown that the uniaxial anisotropy perpendicular to the film plane and the magneto-optical Kerr rotation are dependent upon the substrate bias and argon pressure used during deposition. A procedure for optimizing the magnetic and magneto-optical properties of these materials for magneto-optical recording applications is outlined.Keywords
This publication has 5 references indexed in Scilit:
- Compact magnetooptical disk for coded data storageApplied Optics, 1986
- The influence of deposition conditions on the magneto-optic effect in GdTbCo filmsIEEE Transactions on Magnetics, 1985
- Magneto-optic recording technology (invited)Journal of Applied Physics, 1985
- The effects of wall stiffness on reproducibility of thermo-magnetically written domains*Published by Optica Publishing Group ,1985
- Magnetic Bubble TechnologyPublished by Springer Nature ,1980