Magnetization reversal of ferromagnetic layer in exchange coupled Mn-Ir/Co-Fe epitaxial bilayers

Takashi Sato, Masakiyo Tsunoda, Migaku Takahashi

Research output: Contribution to journalArticlepeer-review

Abstract

The magnetization reversal process for Mn-Ir/Co-Fe epitaxial bilayers was investigated using magneto-optical Kerr microscopy. It was found that the magnetization reversal of the ferromagnetic layer progresses in different ways when the crystallographic orientation of the bilayers is changed. In the (1 1 0) bilayers, 180°domain walls sweep over the whole film plane to reverse the magnetization of the ferromagnetic layer. On the other hand, in (0 0 1) bilayers, smaller domains nucleated homogeneously in the film plane combine with each other around the coercive fields and saturate the magnetization.

Original languageEnglish
Pages (from-to)206-210
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume286
Issue numberSPEC. ISS.
DOIs
Publication statusPublished - 2005 Feb 1

Keywords

  • Co-Fe
  • Directional control
  • Domain pattern
  • Magnetization reversal
  • Mn-Ir
  • Spin valve

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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