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

doi:10.1063/1.3330890

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

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

31 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 language	English (US)
Article number	092510
Journal	Applied Physics Letters
Volume	96
Issue number	9
DOIs	https://doi.org/10.1063/1.3330890
State	Published - 2010

Funding

This work made use of Central Facilities supported by the MRSEC program of the National Science Foundation (Grant No. DMR-0076097) at the Materials Research Center of Northwestern University. Use of the Center for Nanoscale Materials and the Advanced Photon Source at Argonne National Laboratory was supported by the U. S. DOE, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02–06CH11357.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3330890

Cite this

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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.",

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AU - Karapetrova, E.

AU - Ryan, P. J.

AU - Keavney, D. J.

N1 - Funding Information: This work made use of Central Facilities supported by the MRSEC program of the National Science Foundation (Grant No. DMR-0076097) at the Materials Research Center of Northwestern University. Use of the Center for Nanoscale Materials and the Advanced Photon Source at Argonne National Laboratory was supported by the U. S. DOE, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02–06CH11357.

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

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Strain-driven spin reorientation in magnetite/barium titanate heterostructures

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