Exchange bias model in ferromagnetic/antiferromagnetic bilayer with L1 2-type ordered antiferromagnet

C. Mitsumata, Akimasa Sakuma, K. Fukamichi

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

The exchange bias of the ferromagnetic (FM) and antiferromagnetic (AFM) bilayer having L12-type ordered structure has been investigated within the framework of Heisenberg model. The triangle lattice of magnetic atoms in the AFM layer realizes the triangular spin structure due to geometrical spin frustrations. This noncollinear spin structure can bring about an exchange bias in the FM/AFM bilayer system. Under the influence of the exchange bias, the uncompensated spin element appears in the AFM layer, resulting in a shifted loop in magnetization curves, in accord with the measured loop by X-ray magnetic circular dichroism spectroscopy for an AFM layer.

Original languageEnglish
Pages (from-to)2700-2702
Number of pages3
JournalIEEE Transactions on Magnetics
Volume41
Issue number10
DOIs
Publication statusPublished - 2005 Oct 1

Keywords

  • Antiferromagnetic (AFM)
  • Exchange bias
  • Exchange coupling
  • Heisenberg model
  • Noncollinear spin
  • Spin frustration
  • Spin structure

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

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