Micromagnetic predictions of bit decay caused by thermal fluctuations over long time scales
Journal Article
·
· Journal of Applied Physics
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 K{sub u}V/kT is carried out at recording densities from 50 to 400 Gbit/in.{sup 2}. Bit decay in a Co/Pd superlattice film at {similar_to}100Gbit/in.{sup 2} is also studied. {copyright} 2001 American Institute of Physics.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40203934
- Journal Information:
- Journal of Applied Physics, Vol. 89, Issue 11; Other Information: DOI: 10.1063/1.1355330; Othernumber: JAPIAU000089000011006985000001; 181111MMM; PBD: 1 Jun 2001; ISSN 0021-8979
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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