2016 Fiscal Year Annual Research Report
The nano-composite films with large magneto-dielectric and magneto-optical properties by interface diffusion layer controlling
| Project/Area Number |
15K18231
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| Research Institution | Tohoku University |
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Principal Investigator |
張 亦文 東北大学, 学際科学フロンティア研究所, 助教 (30579959)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Keywords | nano-composite films / super-paramagnetic / dielectric constant |
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| Outline of Annual Research Achievements |
Developments of electromagnetic devices require multi-functional materials, such as magnetic-dielectric films, and multiferroic materials. In this research, the BTO-Co multi-layer nano-composite films have been deposited successfully, which consist of amorphous BTO layers and Co nano particles layers. Noteworthy, the films show super-paramagnetic properties. The dielectric constant of these BTO-Co films increases from about10-40, by controlling the Co layer thickness. The conlusion is that the interface state of matrix and particles has a great effect on the magnetic and dielectric properties.
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