Interaction between exchange-bias systems in Ni80 Fe20/Fe50 Mn50/Co trilayers

Chi Wah Leung, M. G. Blamire

Research output: Journal article publicationJournal articleAcademic researchpeer-review

21 Citations (Scopus)

Abstract

The coupling effect between two adjacent exchange bias systems in a trilayer structure was studied. NiFe/FeMn/Co trilayers were prepared in a controlled field to induce conventional biasing in the bottom NiFe/FeMn system, but not in the top FeMn/Co structure. By comparing the magnetic behavior of as-deposited samples with that after field cooling from high temperature, we probed the interactions between the two biased systems through a common antiferromagnetic spacer. The temperature dependences of exchange bias fields and coercivities indicated that exchange bias was not simply an effect between a ferromagnet and an antiferromagnet across the interface; the bulk of the antiferromagnet layer, together with the presence of the second biasing system, were required to account for the final behavior of the whole trilayer exchange bias structure.
Original languageEnglish
Article number054429
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number5
DOIs
Publication statusPublished - 1 Aug 2005
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

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