Experimental study of nonlinear transition shift and error rate degradation caused by thermal decay

Citation
A. Taratorin et al., Experimental study of nonlinear transition shift and error rate degradation caused by thermal decay, J APPL PHYS, 85(8), 1999, pp. 5309-5311
Citations number
5
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
85
Issue
8
Year of publication
1999
Part
2B
Pages
5309 - 5311
Database
ISI
SICI code
0021-8979(19990415)85:8<5309:ESONTS>2.0.ZU;2-U
Abstract
It is demonstrated that the nonlinear transition shift (NLTS) increases wit h time in a thermally unstable medium. The measurements were performed usin g an experimental medium with low magnetic moment. The increase of NLTS dur ing thermal decay can be explained by the density dependence of the decay r ates. This density dependence of thermal decay rates is caused by demagneti zation field from adjacent transitions. A random magnetization pattern demo nstrates different amplitude decay at high and low densities, and an increa sed level of NLTS. Error rates of PRML channel were estimated before and af ter the thermal decay. (C) 1999 American Institute of Physics. [S0021-8979( 99)70908-4].