Microstructure and magnetic properties of FePt-Cr2O3 films

Taisuke Shiroyama, Bollapragada S.D.C.S. Varaprasad, Yukiko K. Takahashi, Kazuhiro Hono

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We have studied the microstructures and magnetic properties of FePt with various metal oxides, to achieve an ideal media structure on glass substrates for thermally assisted magnetic recording. Unlike FePt-C granular films, FePt-MxOy(M = Ti, Nb, W, Zr, and Al) granular films showed an interconnected in-plane microstructure and low coercivity. However, the usage of Cr2O3 as a segregant leads to very fine columnar granular structure, while there is still room for improvement in coercivity.

Original languageEnglish
Article number6971612
JournalIEEE Transactions on Magnetics
Volume50
Issue number11
DOIs
Publication statusPublished - 2014 Nov 1
Externally publishedYes

Keywords

  • FePt
  • granular film
  • heat-assisted magnetic recording (HAMR)

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Microstructure and magnetic properties of FePt-Cr<sub>2</sub>O<sub>3</sub> films'. Together they form a unique fingerprint.

Cite this