Micromagnetic properties of CoCrPtTa/CrV thin films for high density recording media

Thin films of CoCrPtTa quaternary alloy with high coercivity and small thickness are among the best materials for high density longitudinal recording media. In this work, some basic magnetic properties and behavior of such media are analyzed. The magnetization reversal, the magnetostatic interaction...

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Published inJournal of magnetism and magnetic materials Vol. 242-245; no. 1; pp. 388 - 390
Main Authors Candolfo, D, Cecchetti, A, Kawanabe, T, Noda, K, Bottoni, G
Format Journal Article
LanguageEnglish
Published 28.08.2001
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Summary:Thin films of CoCrPtTa quaternary alloy with high coercivity and small thickness are among the best materials for high density longitudinal recording media. In this work, some basic magnetic properties and behavior of such media are analyzed. The magnetization reversal, the magnetostatic interactions and the thermal stability of CoCrPtTa thin films for high density recording media are investigated. The reversal is found to be remarkably incoherent, particularly in the thicker films. The magnetic stability is better in the thinnest film (10 nm), and the switching volume results larger than the grain size. The behavior is influenced by the grain segregation state of the films.
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ISSN:0304-8853