期刊
APPLIED PHYSICS LETTERS
卷 106, 期 13, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4916826
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资金
- Advanced Low Carbon Technology Research and Development Program (ALCA) of the Japan Science and Technology Agency (JST)
- Impulsing Paradigm Change through Disruptive Technologies Program (ImPACT) of Council for Science, Technology and Innovation (Cabinet Office, Government of Japan)
- Murata Science foundation
- Grants-in-Aid for Scientific Research [14J04700] Funding Source: KAKEN
We investigated the magnetoelectric properties of Cr2O3/Co all-thin-film exchange coupling system with Cr spacer layer. In this system, significantly small coercivity (H-c < 50 Oe) was obtained by the Cr spacer layer insertion between Cr2O3 and Co layers. Owing to the small H-c, exchange bias field, H-ex, larger than H-c was achieved. It enabled us to observe magnetization switching at a zero magnetic field, when H-ex was reversed by magnetoelectric effect of Cr2O3 layer. Finally, we demonstrated the isothermal magnetoelectric switching of magnetization in the Cr2O3/Cr/Co all-thin-film system. By changing the direction of the electric field during the isothermal magnetoelectric switching process, both H-ex and magnetization at a zero magnetic field were reversed back and forth, i.e., isothermal magnetization switching by an electric field was achieved. (C) 2015 AIP Publishing LLC.
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