Structure and magnetic properties of FePt nanograins embedded in amorphous carbon films

Yuhua Lee, J. H. Chen, M. S. Guo, G. M. Liu, C. S. Lue

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

Amorphous carbon films with nanograin inclusions of FePt alloy were manufactured by a DC magnetron co-sputtering technique. All films show superparamagnetism. After the post-deposition annealing, the blocking temperature and, thus, the coercive field are largely increased. The coercivity increases from ∼1.7kOe of the as-deposited films to ∼5.6kOe of the films annealed at 400°C for 1h. We discuss the effect of annealing on the structure and the increase of coercivity.

Original languageEnglish
Pages (from-to)15-18
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume282
Issue number1-3
DOIs
Publication statusPublished - 2004 Nov 1
EventInternational Symposium on Advanced Magnetic Technologies - Taipei, Taiwan
Duration: 2003 Nov 132003 Nov 16

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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