Strain-driven spin reorientation in magnetite/barium titanate heterostructures.
We report spin reorientation transitions in a Fe{sub 3}O{sub 4}/BaTiO{sub 3} heterostructure driven by strain at the structural phase transitions of BaTiO{sub 3}. These spin reorientations result from the emergence of an in-plane uniaxial magnetic anisotropy. The magnetoelastic response of Fe{sub 3}O{sub 4} to the variations in epitaxial strain that occur at the BaTiO{sub 3} 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.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; NSF
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 975472
- Report Number(s):
- ANL/XSD/JA-65820
- Journal Information:
- Appl. Phys. Lett., Journal Name: Appl. Phys. Lett. Journal Issue: Mar. 1, 2010 Vol. 96; ISSN APPLAB; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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