Optical detection of spin current and magnetization relaxation in metallic multilayers
Project Area | Creation and control of spin current |
Project/Area Number |
19048006
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Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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Allocation Type | Single-year Grants |
Review Section |
Science and Engineering
|
Research Institution | Tohoku University |
Principal Investigator |
ANDO Yasuo (ANDO Ysuo) Tohoku University, 大学院・工学研究科, 教授 (60250726)
|
Co-Investigator(Kenkyū-buntansha) |
OOGANE Mikihiko 東北大学, 大学院・工学研究科, 准教授 (50396454)
MIZUKAMI Shigemi 東北大学, 原子分子材料科学高等研究機構, 助教 (00339269)
NAGANUMA Hiroshi 東北大学, 大学院・工学研究科, 助教 (60434023)
|
Project Period (FY) |
2007 – 2010
|
Project Status |
Completed (Fiscal Year 2010)
|
Budget Amount *help |
¥39,300,000 (Direct Cost: ¥39,300,000)
Fiscal Year 2010: ¥9,600,000 (Direct Cost: ¥9,600,000)
Fiscal Year 2009: ¥10,500,000 (Direct Cost: ¥10,500,000)
Fiscal Year 2008: ¥9,600,000 (Direct Cost: ¥9,600,000)
Fiscal Year 2007: ¥9,600,000 (Direct Cost: ¥9,600,000)
|
Keywords | スピン流 / スピン注入 / スピン侵入長 / 強磁性共鳴 / トンネル接合 / ダンピング定数 / スピンダイナミクス / 磁気緩和 / Co_2MnSi / ポンププローブ法 / スピン進入長 / スセンダイナミクス |
Research Abstract |
We investigated ultrafast demagnetization for epitaxial Heusler films using an all-optical pump-probe technique. Values of demagnetizationτM increased with the laser power P for Mn-Ga alloys and perpendicular magnetized Co-alloys, this is consistent with microscopic theory. On the other hand,τM decreased with P for Co_2MnSi Heusler alloys on Ag and Cr buffer layers.
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Report
(6 results)
Research Products
(270 results)
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[Journal Article] Structure, exchange stiffness, and magnetic anisotropy of Co_2MnAl_xSi_<1-x> Heusler compounds2009
Author(s)
Takahide Kubota, Jaroslav Hamrle, Yuya Sakuraba, Oksana Gaier, Mikihiko Oogane, Akimasa Sakuma, Burkard Hillebrands, KokiTakanashi, Yasuo Ando
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Journal Title
Related Report
Peer Reviewed
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[Presentation] Spin dynamics for Heusler alloy films2010
Author(s)
S.Mizukami, J.Walowski, T.Kubota, M.Oogane, H.Naganuma, Y.Ando, T.Miyazaki
Organizer
4th International Workshop on Spin Currents & 2nd International Workshop on Spincaloritoronics(invited)
Place of Presentation
Sendai Japan
Year and Date
2010-02-10
Related Report
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[Presentation] Spin dynamics for Heusler alloy films (invited)2010
Author(s)
S. Mizukami, J. Walowski, T. Kubota, M. Oogane, H. Naganuma, Y.,o, T. Miyazaki
Organizer
4th International Workshop on Spin Currents & 2nd International Workshop on Spincaloritoronics
Place of Presentation
Sendai Japan
Year and Date
2010-02-10
Related Report
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