Electric field control of magnetic anisotropies and magnetic coercivity in Fe/BaTiO3 (001) heterostructures
Magnetoelectric effects in Fe/BaTiO 3 (001) heterostructures have been investigated via
magneto-optical Kerr effect as a function of temperature. We find major modifications of
magnetic anisotropies and magnetic coercivity induced by the application of electric fields
perpendicular to the interface. Changes in the coercive magnetic field, on the order of 100%
at 250 K (in the orthorhombic phase of BaTiO 3) and 40% at 300 K (in the tetragonal
phase), which are linked to the ferroelectric behavior of BaTiO 3, are reported.
magneto-optical Kerr effect as a function of temperature. We find major modifications of
magnetic anisotropies and magnetic coercivity induced by the application of electric fields
perpendicular to the interface. Changes in the coercive magnetic field, on the order of 100%
at 250 K (in the orthorhombic phase of BaTiO 3) and 40% at 300 K (in the tetragonal
phase), which are linked to the ferroelectric behavior of BaTiO 3, are reported.
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