Relationship between surface energy and preferred orientation of CoCr alloy magnetic thin films deposited on C and TiCr underlayers

H. Okuo, T. Onoue, T. Asahi, T. Osaka

Research output: Contribution to journalConference article

6 Citations (Scopus)

Abstract

The relationship between crystallographic grain orientation and the three kinds of surface energy components; dispersion, polar, and hydrogen bonding components, in Co73Cr18Pt6Ta3 perpendicular magnetic recording media with an amorphous C or a Ti90Cr10 underlayer was discussed. Each surface energy component of the thin film was calculated from an extended Fowkes theory by measuring the contact angle of a test liquid on the thin film. The experimental results revealed that the polar component of surface energy of the Co73Cr18Pt6Ta3 magnetization film with the C underlayer affected greatly the Co [0 0 1] preferred orientation of the Co73Cr18Pt6Ta3 magnetization film, while the surface energy of the Co73Cr18Pt6Ta3 magnetic layer with the Ti90Cr10 underlayer had little influence on the distribution of it.

Original languageEnglish
Pages (from-to)98-103
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume235
Issue number1-3
DOIs
Publication statusPublished - 2001 Oct 1
EventProceedings of the 5th Perpendicular Magnetic Recording Conference (PMRC 2000) - Sendai, Japan
Duration: 2000 Oct 232000 Oct 26

Keywords

  • Alloy film
  • Amophous C underlayer
  • Preferred orientation
  • Surface energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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