Origin of complex exchange anisotropy in Fe/MnF<inf>2</inf> bilayers

N. Krivorotov, E. Dan Dahlberg, C. Leighton, J. Nogués, Ivan Schuller

Research output: Contribution to journalArticleResearchpeer-review

34 Citations (Scopus)

Abstract

An analytical model of exchange anisotropy in epitaxial ferromagnetic/antiferromagnetic bilayers was developed. The model demonstrates that the high symmetry exchange anisotropy terms in ferromagnetic/antiferromagnetic bilayers originate from a partial domain wall in the antiferromagnetic layer. Application of the model to the experimental data analysis enables one to separately determine the fraction of uncompensated interfacial spins in the antiferromagnetic layer and the interfacial exchange coupling energy between spins in the ferromagnet and in the antiferromagnet. The model provides a quantitative description of complex exchange anisotropy recently observed in Fe/MnF2 bilayers. © 2003 The American Physical Society.
Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume68
Issue number5
DOIs
Publication statusPublished - 5 Aug 2003

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