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Ferroelectric Control of the Magnetocrystalline Anisotropy of the Fe/BaTiO3(001) Interface
Journal of Physics: Condensed Matter (2012)
  • Pavel Lukashev, University of Northern Iowa
  • J. D. Burton, University of Nebraska - Lincoln
  • Sitaram Jaswal, University of Nebraska - Lincoln
  • Evgeny Y. Tsymbal, University of Nebraska - Lincoln
Density-functional calculations are employed to investigate the effect of ferroelectric polarization of BaTiO3 on the magnetocrystalline anisotropy of the Fe /BaTiO3(001) interface. It is found that the interface magnetocrystalline anisotropy energy changes from 1.33 to 1.02 erg cm −2 when the ferroelectric polarization is reversed. This strong magnetoelectric coupling is explained in terms of the changing population of the Fe 3d orbitals at the Fe/BaTiO3 interface driven by polarization reversal. Our results indicate that the electronically assisted magnetoelectric effects at the ferromagnetic/ferroelectric interfaces may be a viable alternative to the strain mediated coupling in related heterostructures and the electric field-induced effects on the interface magnetic anisotropy in ferromagnet/dielectric structures.
Publication Date
May 2, 2012
Citation Information
Pavel Lukashev, J. D. Burton, Sitaram Jaswal and Evgeny Y. Tsymbal. "Ferroelectric Control of the Magnetocrystalline Anisotropy of the Fe/BaTiO3(001) Interface" Journal of Physics: Condensed Matter Vol. 24 (2012)
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