Dynamic observation of thermomagnetic writing on MnBi films
- 1 September 1972
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Magnetics
- Vol. 8 (3), 492-494
- https://doi.org/10.1109/tmag.1972.1067371
Abstract
Thermomagnetic writing on MnBi films was studied by dynamic observation on a change in a magnetization state using a two-beam method. As a writing laser beam increased in pulse duration, four writing characteristics were successively observed: I) nonwritable, II) writable without the first order phase transition, III) writable with the transition, and IV) decomposed. Observation of a nonmagnetic state in a writing cycle in II) revealed that the thermomagnetic writing is the extrapolated Curie point writing. The domain expansion phenomena observed in a writing cycle in II) are discussed based on a domain theory.Keywords
This publication has 2 references indexed in Scilit:
- Preparation and Stability of MnBi Thin FilmsJournal of Applied Physics, 1971
- Properties and Device Applications of Magnetic Domains in OrthoferritesBell System Technical Journal, 1967