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

Jianhua Xue; R. H. Victora

doi:10.1063/1.1355330

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

Jianhua Xue, R. H. Victora

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-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 K_uV/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 language	English (US)
Pages (from-to)	6985-6987
Number of pages	3
Journal	Journal of Applied Physics
Volume	89
Issue number	11 II
DOIs	https://doi.org/10.1063/1.1355330
State	Published - Jun 1 2001
Event	8th Joint Magnetism and Magnetic Materials-Intermag Conference - San Antonio, TX, United States Duration: Jan 7 2001 → Jan 11 2001

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title = "Micromagnetic predictions of bit decay caused by thermal fluctuations over long time scales",

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.",

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AU - Xue, Jianhua

AU - Victora, R. H.

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N2 - 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.

AB - 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.

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JF - Journal of Applied Physics

IS - 11 II

T2 - 8th Joint Magnetism and Magnetic Materials-Intermag Conference

Y2 - 7 January 2001 through 11 January 2001

ER -

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

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