Direct overwrite in amorphous rare-earth transition-metal alloys
- 9 February 1987
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 50 (6) , 356-358
- https://doi.org/10.1063/1.98198
Abstract
The thermomagnetic writing and erasure process has been investigated, paying special attention to the case of zero applied magnetic field. Concerning bubblelike domains, writing can easily be performed by the demagnetizing field while erasure requires an external magnetic field larger than the collapse field. However, in alloys exhibiting a compensation temperature above ambient temperature erasure can be achieved in the absence of an external field via the creation and annihilation of a ring domain which opens the capability of direct overwrite.Keywords
This publication has 2 references indexed in Scilit:
- Magneto-optic recording materials with direct overwrite capabilityApplied Physics Letters, 1986
- The Theory of Cylindrical Magnetic DomainsBell System Technical Journal, 1969