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arXiv · 1403.2469

Piezo-Voltage Manipulation of the Magnetization and Magnetic Reversal in Thin Fe Film

Y. Y. Li·W. G. Luo·L. J. Zhu·J. H. Zhao·K. Y. Wang
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Abstract

We carefully investigated the in-plane magnetic reversal and corresponding magnetic domain structures in Fe/GaAs/piezo-transducer heterostructure using longitudinal magneto-optical Kerr microscopy. The coexistence of the <100> cubic magnetic anisotropy and uniaxial magnetic anisotropy was observed in our Fe thin film grown on GaAs. The induced deformation along [110] orientation can effectively manipulate the magnetic reversal with magnetic field applied along magnetic uniaxial hard [110] axes. The control of two-jump magnetization switching to one-jump magnetization switching during the magnetic reversal was achieved by piezo-voltages with magnetic field applied in [100] direction. The additional uniaxial anisotropy induced by piezo-voltages at -75 /75V are -1.400/1400 J/m3 .

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Y. Y. Li, W. G. Luo, L. J. Zhu, J. H. Zhao, K. Y. Wang. 2014-03-11. Piezo-Voltage Manipulation of the Magnetization and Magnetic Reversal in Thin Fe Film. https://arxiv.org/abs/1403.2469

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