title: Ferroelectric control of the magnetocrystalline anisotropy of the Fe/BaTiO(3)(001)  interface.
abstract: Density-functional calculations are employed to investigate the effect of ferroelectric polarization of BaTiO(3) on the magnetocrystalline anisotropy of the Fe /BaTiO(3)(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/BaTiO(3) 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.
authors.affiliation: Department of Physics and Astronomy, Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE 68588-0299, USA. pavel.lukashev@gmail.com
authors.forename: Pavel V
authors.initials: PV
authors.lastname: Lukashev
authors.forename: J D
authors.initials: JD
authors.lastname: Burton
authors.forename: Sitaram S
authors.initials: SS
authors.lastname: Jaswal
authors.forename: Evgeny Y
authors.initials: EY
authors.lastname: Tsymbal