首页|Electrostatic switch of magnetic anisotropy in the composite with iron-metal granule and barium-titanate matrix
Electrostatic switch of magnetic anisotropy in the composite with iron-metal granule and barium-titanate matrix
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NSTL
Elsevier
This work investigates electrostatic switch of magnetic anisotropy in the composite with iron-metal granule and barium-titanate matrix theoretically. As the spontaneous polarization is switched downward or upward in barium-titanate matrix, the parallel or perpendicular magnetizing is preferred in iron-metal granule respectively. This demagnetizing anisotropy originates from the long-range electrostatic interaction in matrix body, which induces the inharmonic magnetic moment on granule surface. The effects of position bias and composite size are delicately studied. The cross-section map displays distorted electric polarization in barium-titanate matrix, and demagnetizing energy gradient in iron-metal granule. This work predicts the electrostatic switch of magnetic anisotropy in metal/oxide composite, which would develop the integrated device and functional material.
Iron metalBarium titanateMagnetic anisotropyElectric polarization
NSTL
Elsevier
