Exchange coupling in nanocomposite FePtB thin film magnets

Neelam Kaushik, Parmanand Sharma, Hisamichi Kimura, Akihisa Inoue, Akihiro Makino

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The nature of coupling among the L 10 FePt hard and Fex B (x=2,3) soft magnetic phases in FePtB nanocomposite thin film magnets is investigated by measuring the hysteresis loops and δM (Henkel) plots. The FePtB thin films deposited under optimized sputtering conditions are shown to have almost fully exchange-coupled soft and hard magnetic phases, which resulted in good hard magnetic properties [in-plane Hc ∼604 kAm and (BH)max ∼95.6 kJ m3].

Original languageEnglish
Article number07E121
JournalJournal of Applied Physics
Volume103
Issue number7
DOIs
Publication statusPublished - 2008 Apr 21

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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