Peculiar temperature dependence of electric-field effect on magnetic anisotropy in Co/Pd/MgO system

Y. Hibino, T. Koyama, A. Obinata, T. Hirai, S. Ota, K. Miwa, S. Ono, F. Matsukura, H. Ohno, D. Chiba

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

We report on the temperature dependence of the magnetic anisotropy in Co/Pd/MgO system, in which magnetic moment in Pd is induced by the magnetic proximity effect. We demonstrate that the magnetic anisotropy is modulated by applying an electric field to the Pd surface. At temperatures below 100 K, we find the nonlinear electric-field dependence of the anisotropy with the sign reversal. We obtain a huge anisotropy modulation efficiency of ∼1600 fJ/V m at 10 K.

Original languageEnglish
Article number082403
JournalApplied Physics Letters
Volume109
Issue number8
DOIs
Publication statusPublished - 2016 Aug 22

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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