2013 Fiscal Year Final Research Report
Creation of Spin-Nanostructure with Extreme High Magnetic Moment
| Project/Area Number |
21226007
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Electronic materials/Electric materials
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| Research Institution | Tohoku University |
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Principal Investigator |
TAKAHASHI Migaku 東北大学, 未来科学技術共同研究センター, 教授 (70108471)
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| Co-Investigator(Kenkyū-buntansha) |
TSUNODA Masakiyo 東北大学, 大学院工学研究科, 准教授 (80250702)
OGAWA Tomoyuki 東北大学, 大学院工学研究科, 助教 (50372305)
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| Project Period (FY) |
2009-05-11 – 2014-03-31
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| Keywords | 電気・電子材料 / 窒化鉄 / 飽和磁化 / ナノ粒子 / 薄膜 |
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| Research Abstract |
In order to obtain a new magnetic material with high saturation magnetization, establishment of synthesis method of alpha"-Fe16N2 nanoparticles and fabrication method of Fe-based nanoparticle assembly. By synthesizing new precursors and optimizing process conditions, single-phase of alpha"-Fe16N2 nanoparticles was successfully synthesized for the first time, whose saturation magnetization was 234emu/g. By applying Fe nanoparticles with 10nm in diameter, newly developed coagulation method of nanoparticles could control a volume fraction from 0.5% to 40% of the Fe nanoparticle assembly.
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