Magnetic properties of Co film in Pt/Co/Cr₂O₃/Pt structure

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T. V. A. Nguyen, Y. Shiratsuchi, H. Sato, S. Ikeda, T. Endoh, and Y. Endo, AIP Advances 10, 015152 (2020); https://doi.org/10.1063/1.5130439.

Magnetic properties of Co film in Pt/Co/α-Cr₂O₃/Pt/α-Al₂O₃ structure were investigated. Co layer thickness tCo dependence of perpendicular magnetic anisotropy energy density K reveals that the bulk magnetic anisotropy plays an important role in the system in addition to the interfacial anisotropy. Damping constant α monotonically increases with the decrease of tCo but not proportionally to 1/tCo. Both K and α increase with the increase of Pt layer thickness tPt from 3 nm to 5 nm and keeps almost constant in the tPt range between 5 nm to 20 nm. These results are of importance to understand the magnetization switching behavior driven by the magneto-electric (ME) effect as well as to design the spintronics device using the ME effect.

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  • AIP Advances

    AIP Advances 10 (1), 015152-, 2020-01-28

    American Institute of Physics

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