Control of magnetic anisotropy in Pt/Co system using ionic liquid gating

Takamasa Hirai, Tomohiro Koyama, Aya Obinata, Yuki Hibino, Kazumoto Miwa, Shimpei Ono, Makoto Kohda, Daichi Chiba

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


The magnetic anisotropy of the Pt/Co system under ionic liquid gating was studied. A comparison of results obtained using samples under the gating and those subjected to mild oxidization by oxygen plasma ashing suggested that the anodic oxidization of the Co layer could be one of the causes of the large modulation observed in the magnetic anisotropy. However, the charge accumulation effect was probably dominant when the Co layer was on the cathode side. The experiments presented here are expected to aid in elucidating the mechanism by which electric fields affect magnetism.

Original languageEnglish
Article number063007
JournalApplied Physics Express
Issue number6
Publication statusPublished - 2016 Jun


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