Effects of orientation on the time decay of magnetization for cobalt–alloy thin film media

J. P. Wang, Michael Alex, L. P. Tan, M. L. Yan

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The dependence of the time decay of magnetization on orientation ratio was investigated for longitudinal Co–alloy thin film media. The coercivity orientation ratio was controlled by the degree of mechanical texture. For oriented samples, it was found that the remanent magnetization along the circumferential direction decayed faster with time than that along the radial direction when the applied reverse magnetic field was near the remanent coercivity. However, the remanent magnetization along the circumferential direction decayed more slowly with time than that along the radial direction when the applied reverse magnetic field was less than roughly half the remanent coercivity. Anisotropic interactions and magnetic anisotropy distributions appear to be the cause for the different time decay of magnetization along the circumferential and radial directions for oriented media.

Original languageEnglish (US)
Pages (from-to)4997-4999
Number of pages3
JournalJournal of Applied Physics
Volume85
Issue number8
DOIs
StatePublished - Apr 15 1999

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