Improved (0 0 1)-texture of FePt-C for heat-assisted magnetic recording media by insertion of Cr buffer layer

T. Shiroyama, J. Wang, A. Felicia, Y. K. Takahashi, K. Hono

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

FePt-C granular films deposited on MgO underlayers are the prototype media for heat-assisted magnetic recording. To reduce the in-plane magnetic component in the FePt-C media, we investigated the effect of Cr buffer layers on the crystallographic textures of the MgO underlayers and the resultant magnetic properties of the FePt-C layers. By growing a MgO underlayer on a Cr buffer layer, the (0 0 1) texture of the MgO underlayer is improved, on which the in-plane component of a FePt-C film is substantially reduced. We conclude that the growth in the grain size of the MgO underlayer is the key factor in reducing the in-plane component in the FePt-C recording layer.

Original languageEnglish
Pages (from-to)129-134
Number of pages6
JournalJournal of Magnetism and Magnetic Materials
Volume432
DOIs
Publication statusPublished - 2017 Jun 15
Externally publishedYes

Keywords

  • Cr
  • FePt
  • Granular film
  • Heat assisted magnetic recording

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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