2021 Fiscal Year Research-status Report
トンネリング電気磁気-誘電効果を発現するナノグラニュラー複相膜の創製
| Project/Area Number |
21K18810
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| Research Institution | Tohoku University |
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Principal Investigator |
曹 洋 東北大学, 学際科学フロンティア研究所, 助教 (50804598)
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| Co-Investigator(Kenkyū-buntansha) |
増本 博 東北大学, 学際科学フロンティア研究所, 教授 (50209459)
小林 伸聖 公益財団法人電磁材料研究所, その他部局等, 研究員(移行) (70205475)
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| Project Period (FY) |
2021-07-09 – 2023-03-31
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| Keywords | charge tunneling / nanogranular composites / dielectrtic properties / electric field / magnetic field |
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| Outline of Annual Research Achievements |
I deposited nanogranular films and studied the effect of the electric field on dielectric variation. The results show that when an electric field is applied, a maximum dielectric change is confirmed at a specific frequency, which is an emergent phenomenon that has never been reported before. Furthermore, this relaxation-type behavior is similar to that of a tunnel magnetodielectric effect, which reveals the relationship between electric and magnetic fields. Based on the findings, I published several papers this year in journals such as Appl. Phys. Lett. and Appl. Phys. Exp. et al.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
The observed relaxation-type dielectric tunability is important because it underpins the relaxationship between electric and magnetic fields. These findings suggest that the proposed tunnel electro-magneto-dielectric effect is very likely to be observed.
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| Strategy for Future Research Activity |
This year's proposal will investigate the combined effect of electric and magnetic fields on dielectric variation, analyze the results, and propose a new model to explain the results.
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Research Products
(5 results)
