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    Electric-field induced strain modulation of magnetization in Fe-Ga/Pb(Mg1/3Nb2/3)-PbTiO3 magnetoelectric heterostructures

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    2014_Electric_field_induced_strain.pdf (1.484Mb)
    Downloads: 461
    Date
    2014-02-24
    Author
    Zhang, Yue
    Wang, Zhiguang
    Wang, Yaojin
    Luo, Chengtao
    Li, Jiefang
    Viehland, Dwight D.
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    Abstract
    Magnetostrictive Fe-Ga thin layers were deposited on < 110 >-oriented Pb(Mg1/3Nb2/3)-30% PbTiO3 (PMN-30% PT) substrates by pulsed laser deposition. The as-prepared heterostructures showed columnar arrays aligned in the out-of-plane direction. Transmission electron microscopy revealed nanocrystalline regions within the columnar arrays of the Fe-Ga film. The heterostructure exhibited a strong converse magnetoelectric coupling effect of up to 4.55 x 10(-7) s m(-1), as well as an electric field tunability of the in-plane magnetic anisotropy. Furthermore, the remanent magnetization states of the Fe-Ga films can be reversibly and irreversibly changed by external electric fields, suggesting a promising and robust application in magnetic random access memories and spintronics. (C) 2014 AIP Publishing LLC.
    URI
    http://hdl.handle.net/10919/52414
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    • Scholarly Works, Materials Science and Engineering (MSE) [399]

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