Microstructure and magnetization reversal of L1 0-FePt/[Co/Pt] N exchange coupled composite films

  • H. H. Guo
  • , J. L. Liao
  • , B. Ma*
  • , Z. Z. Zhang
  • , Q. Y. Jin
  • , H. Wang
  • , J. P. Wang
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

Two series of perpendicular exchange coupled composites (ECC) films are prepared by dc magnetron sputtering, FePt(5)/[Co(0.2)/Pt(0.3)] N (ECC-I-N) and FePt(5)/[Co(0.2)/Pt(0.6)] N (ECC-II-N), respectively. Structure analyses reveal the epitaxial growth on (001) oriented L1 0 FePt island-like grains of [Co/Pt] N with (200) orientation. Coercivity H C and remanent coercivity H CR of both series samples decrease sharply compared to FePt, with the increase of the thickness of [Co/Pt] N. The angular dependence of H CR shows excellent angular tolerance.

Original languageEnglish
Article number142406
JournalApplied Physics Letters
Volume100
Issue number14
DOIs
StatePublished - 2 Apr 2012
Externally publishedYes

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