Annealing temperature dependence of exchange bias in BiFeO 3/CoFe bilayers

T. Yu, H. Naganuma, W. X. Wang, Y. Ando, X. F. Han

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9 Citations (Scopus)

Abstract

BiFeO 3/CoFe bilayers with different BiFeO 3 (BFO) crystalities were fabricated by chemical solution deposition and sputtering method. Exchange bias has been successfully induced in these bilayers by post-annealing. The annealing temperature dependence of exchange bias as well as coercivity was investigated. Two kinds of annealing temperature dependence behaviors were observed. It is found that, similar to the conventional antiferromagnet/ferromagnet system, the temperature dependence of exchange bias is dominated by direct interface coupling, and the crystality of BFO has no profound effect on exchange bias.

Original languageEnglish
Article number07D908
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
Publication statusPublished - 2012 Apr 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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