| Project/Area Number |
15J03637
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| Research Category |
Grant-in-Aid for JSPS Fellows
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| Allocation Type | Single-year Grants |
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| Section | 国内 |
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| Research Field |
Material processing/Microstructural control engineering
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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, 特別研究員(PD)
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| Project Period (FY) |
2015-04-24 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2016: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2015: ¥900,000 (Direct Cost: ¥900,000)
|
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| Keywords | granular nanostructure / high frequency response / magneto-dielectric / Co-HfN / Co-AlF / Nanogranular films / High-frequency device / Magneto-dielectricity |
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| Outline of Annual Research Achievements |
Through insertion of HfN interlayer into CoHfN structure, I realized the transition between soft magnetic properties and PMA, and attributed this transition to the suppression of columnar cluster and reduced interlayer interaction. This unique CoHfN/HfN multilayer granular structure is insightful to understand this growth-induced PMA films with tunable gigahertz frequency from 0.9 to 2 GHz by engineering the thicknesses of both granular and interlayer.
The 2D Co/AlF granular films has been prepared. The structure of Co/AlF film consists of Co granule and AlF matrix. The existence of ferromagnetic clusters in Co(3nm)/AlF(5nm) films greatly improve the low-field sensitivity of TMD, displaying high 0.8% at H = 1 kOe,a value of 8-fold enhancement compared with the FeCo-MgF granular films.
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| Research Progress Status |
28年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
28年度が最終年度であるため、記入しない。
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