抄録
We report the magnetic field dependence of the threshold electric field Eth for the magnetoelectric switching of the perpendicular exchange bias in Pt/Co/Au/Cr2O3/Pt stacked films using a reversible isothermal electric tuning approach. The Eth values for the positive-to-negative and negative-to-positive switching are different because of the unidirectional nature of the interfacial exchange coupling. The Eth values are inversely proportional to the magnetic-field strength, and the quantitative analysis of this relationship suggests that the switching is driven by the nucleation and growth of the antiferromagnetic domain. We also find that the magnetic-field dependence of Eth exhibits an offset electric field that might be related to the uncompensated antiferromagnetic moments located mainly at the interface.
本文言語 | English |
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論文番号 | 073905 |
ジャーナル | Journal of Applied Physics |
巻 | 122 |
号 | 7 |
DOI | |
出版ステータス | Published - 2017 8 21 |
外部発表 | はい |
ASJC Scopus subject areas
- Physics and Astronomy(all)