Micromagnetic predictions of bit decay caused by thermal fluctuations over long time scales

Jianhua Xue, R. H. Victora

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations

Abstract

Thermal decay in magnetic recording media increases with time, consequently decreasing the signal-to-noise ratio. A recently developed scaling technique, based on the equivalence of time and temperature within micromagnetics, has been used to predict bit decay over long time scales. An ideal square-wave field is used to record bits in thin film magnetic recording media. Comparison of bit thermal stability for longitudinal and perpendicular thin film media with similar KuV/kT is carried out at recording densities from 50 to 400 Gbit/in.2. Bit decay in a Co/Pd superlattice film at -100 Gbit/in.2 is also studied.

Original languageEnglish (US)
Pages (from-to)6985-6987
Number of pages3
JournalJournal of Applied Physics
Volume89
Issue number11 II
DOIs
StatePublished - Jun 1 2001
Event8th Joint Magnetism and Magnetic Materials-Intermag Conference - San Antonio, TX, United States
Duration: Jan 7 2001Jan 11 2001

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