TITLE

Strain-driven spin reorientation in magnetite/barium titanate heterostructures

AUTHOR(S)
Sterbinsky, G. E.; Wessels, B. W.; Kim, J.-W.; Karapetrova, E.; Ryan, P. J.; Keavney, D. J.
PUB. DATE
March 2010
SOURCE
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p092510
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report spin reorientation transitions in a Fe3O4/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.
ACCESSION #
48428986

 

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