Magnetic damping control of ferromagnetic thin films with negative spin polarization and development of highly efficient spin-current generator
| Project/Area Number |
24710154
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Microdevices/Nanodevices
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| Research Institution | Fukushima National College of Technology |
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Principal Investigator |
ISOGAMI Shinji 福島工業高等専門学校, その他部局等, 准教授 (10586853)
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| Research Collaborator |
TSUNODA Masakiyo 東北大学, 大学院工学研究科, 准教授 (80250702)
OOGANE Mikihiko 東北大学, 大学院工学研究科, 准教授 (50396454)
SAKUMA Akimasa 東北大学, 大学院工学研究科, 教授 (30361124)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2012: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 窒化鉄 / スピン流 / スピンポンピング / 磁気緩和 / 窒化鉄薄膜 / 結晶構造 / Kerr効果 / スパッタ成膜 / 赤外線加熱プロセス |
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| Outline of Final Research Achievements |
Highly efficient spin-current generator was developed using Fe4N thin films with negative spin polarization. The high quality Fe4N/Pt bilayer films were fabricated by the reactive sputtering with Ar and N2 gas mixture during thermal treatment using the focused IR heating system. The electromotive force due to inverse spin-Hall effect generated by spin-pumping from the Fe4N films exhibited one order larger value, compared with the NiFe conventional films. The results implied that our developed Fe4N/Pt systems provided highly spin-current generator.
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Report
(4 results)
Research Products
(13 results)
