Electric field modulation of magnetic anisotropy in MgO/Co/Pt structure

Kihiro Yamada, Haruka Kakizakai, Kazutoshi Shimamura, Masashi Kawaguchi, Shunsuke Fukami, Nobuyuki Ishiwata, Daichi Chiba, Teruo Ono

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


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.

Original languageEnglish
Article number073004
JournalApplied Physics Express
Issue number7
Publication statusPublished - 2013 Jul

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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