Exchange bias interactions in polycrystalline/amorphous bilayers

Julian Dean, Andras Kovacs, Amit Kohn, A. Goncharov, M. A. Bashir, G. Hrkac, D. A. Allwood, Thomas Schrefl

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


For technologically relevant systems of polycrystalline antiferromagnetic layer coupled to an amorphous ferromagnetic layer, quantitative models and micromagnetic simulations are challenging due to inherent structural differences. We present a numerical study, performed using a surface integral technique with finite element micromagnetic simulations, that can incorporate structural and magnetic parameters such as grain crystallography, mixed spin-interface coupling and granular stability, arising from grain volume and anisotropy. We show that this model is in good agreement with experimental results for exchange bias and coercive fields as well as the training effect.

Original languageEnglish
Article number072504
JournalApplied Physics Letters
Issue number7
StatePublished - 1 Mar 2010
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Exchange bias interactions in polycrystalline/amorphous bilayers'. Together they form a unique fingerprint.

Cite this