Pioneering of terahertz magnetization dynamics
Project/Area Number |
24686001
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Research Category |
Grant-in-Aid for Young Scientists (A)
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Allocation Type | Partial Multi-year Fund |
Research Field |
Applied materials science/Crystal engineering
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Research Institution | Tohoku University |
Principal Investigator |
MIZUKAMI Shigemi 東北大学, 原子分子材料科学高等研究機構, 教授 (00339269)
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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 |
¥26,000,000 (Direct Cost: ¥20,000,000、Indirect Cost: ¥6,000,000)
Fiscal Year 2014: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2013: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
Fiscal Year 2012: ¥11,310,000 (Direct Cost: ¥8,700,000、Indirect Cost: ¥2,610,000)
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Keywords | テラヘルツ / スピントロニクス / ポンププローブ / 磁性体 / レーザー / エピタキシャル / スピンダイナミクス / 垂直磁化 / パルスレーザー / 磁化ダイナミクス / ポンプ・プローブ / 垂直磁化膜 / 高磁気異方性 / フェリ磁性体 / スピントロ二クス / 磁気光学効果 |
Outline of Final Research Achievements |
Pump-probe optical system with a high sensitivity and large applied field has been constructed, and films of various magnetic materials with high anisotropy and low magnetic moments have been fabricated and investigated. Pseudo-two dimensional layered magnet films were successfully grown, in which coherent magnetization precessional dynamics with frequency of 0.1 THz were observed. Furthermore, the compensated ferrimagnet with ultra-high magnetic anisotropy has been grown and precessional dynamics in THz wave range have been observed. These experimental results were qualitatively explained by the phenomenological model constructed in this research.
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Report
(4 results)
Research Products
(72 results)
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[Presentation] Tunnel magnetoresistance in Mn-Ga/MgO/CoFeB perpendicular magnetic tunnel junctions with Co insertion2012
Author(s)
Q. L. Ma, T. Kubota, R Peretzki, S. Mizukami, M. Seibt, M. Munsenberg, X. M. Zhang, M. Oogane, H. Naganuma, Y. Ando, and T. Miyazaki
Organizer
The 21 International Colloquium on Magnetic Films and Surfaces
Place of Presentation
Shanghi,中国
Year and Date
2012-09-24
Related Report
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