Electric Field Modulation of Magnetic Anisotropy in MgO/Co/Pt Structure

In this study, we have investigated perpendicular magnetic anisotropy in a MgO/Co/Pt structure under an electric field. The change in the interface anisotropy energy in a MgO/Co stack upon the application of a gate voltage was determined by using a transport measurement technique. The result indicat...

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Bibliographic Details
Published in:Applied physics express 2013-07, Vol.6 (7), p.073004-073004-3
Main Authors: Yamada, Kihiro, Kakizakai, Haruka, Shimamura, Kazutoshi, Kawaguchi, Masashi, Fukami, Shunsuke, Ishiwata, Nobuyuki, Chiba, Daichi, Ono, Teruo
Format: Article
Language:English
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Summary:In this study, we have investigated perpendicular magnetic anisotropy in a MgO/Co/Pt structure under an electric field. The change in the interface anisotropy energy in a MgO/Co stack upon the application of a gate voltage was determined by using a transport measurement technique. The result indicates that a decrease in the electron number at the surface of the Co layer leads to the enhancement of the perpendicular anisotropy energy at a temperature sufficiently lower than the Curie temperature.
ISSN:1882-0778
1882-0786
DOI:10.7567/APEX.6.073004