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Switchable voltage control of the magnetic anisotropy in heterostructured nanocomposites of CoFe/NiFe/PZT

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Abstract

In this work, we study the magnetic properties of a CoFe/NiFe/PZT heterostructured nanocomposite that is affected by the strain in the PZT substrate when a voltage in the range from −250 to 250 V is applied. An interesting electric-voltage-controlled magnetic anisotropy, with a relative increase in magnetization up to above 100%, is observed. This brings a new challenge to operate a low-power-consuming spin electronic device. We also utilize a theoretical model based on interfacecharge-mediated and strain-mediated magnetic-electric coupling to understand the change in the magnetic properties of the investigated material.

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Authors and Affiliations

  1. Faculty of Engineering Physics and Nanotechnology and Laboratory for Micro and Nanotechnology, University of Engineering and Technology, Vietnam National University, Building E3, 144 Xuan Thuy Road, Cau Giay, Hanoi, Vietnam

    Nguyen Thi Minh Hong, Nguyen Ba Doan, Nguyen Huy Tiep, Le Viet Cuong, Bui Nguyen Quoc Trinh & Pham Duc Thang

  2. Department of Physics, Chungbuk National University, Cheongju, 361-763, Korea

    Dong-Hyun Kim

Authors
  1. Nguyen Thi Minh Hong
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  2. Nguyen Ba Doan
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  3. Nguyen Huy Tiep
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  4. Le Viet Cuong
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  5. Bui Nguyen Quoc Trinh
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  6. Pham Duc Thang
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  7. Dong-Hyun Kim
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Correspondence to Le Viet Cuong.

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Hong, N.T.M., Doan, N.B., Tiep, N.H. et al. Switchable voltage control of the magnetic anisotropy in heterostructured nanocomposites of CoFe/NiFe/PZT. Journal of the Korean Physical Society 63, 812–816 (2013). https://doi.org/10.3938/jkps.63.812

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  • DOI: https://doi.org/10.3938/jkps.63.812

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