Strain-driven spin reorientation in magnetite/barium titanate heterostructures

G. E. Sterbinsky, Bruce W Wessels, J. W. Kim, E. Karapetrova, P. J. Ryan, D. J. Keavney

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

We report spin reorientation transitions in a Fe3O 4/BaTiO3 heterostructure driven by strain at the structural phase transitions of BaTiO3. These spin reorientations result from the emergence of an in-plane uniaxial magnetic anisotropy. The magnetoelastic response of Fe3O4 to the variations in epitaxial strain that occur at the BaTiO3 phase transitions gives rise to the uniaxial anisotropy. The anisotropy energies calculated from the in-plane strain are in quantitative agreement with a change in the Zeeman energy.

Original languageEnglish (US)
Article number092510
JournalApplied Physics Letters
Volume96
Issue number9
DOIs
StatePublished - 2010

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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