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Fast and Slow Magnetization Processes in Magnetic Recording Media
Published online by Cambridge University Press: 26 February 2011
Abstract
Information loss due to thermal activation is a major concern in ultrahigh-density magnetic recording media. The usually considered mechanism is thermally activated magnetization reversal over micromagnetic energy barriers. However, micromagnetic approaches ignore local anisotropy fluctuations, which translate into a time-dependent reduction of the remanent magnetization. The effect is negligibly small in macroscopic magnets but becomes important on a scale of a few nanometers.
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- Research Article
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- Copyright © Materials Research Society 2006
References
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