2017 Fiscal Year Final Research Report
Studies of the observation of magnetic skyrmions in ferromagnetic thin films
| Project/Area Number |
15K13272
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Nanostructural physics
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| Research Institution | Gifu University |
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Principal Investigator |
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| Research Collaborator |
NAKATANI Yoshinobu 電気通信大学, 大学院情報理工学研究科, 教授
ONO Teruo 京都大学, 理学研究科, 教授
YAMAGUCHI Akinobu 兵庫県立大学, 工学部, 准教授
TANABE Kenji 豊田工業大学, 准教授
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | スカーミオン / 強磁性体薄膜 / 磁区 |
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| Outline of Final Research Achievements |
The observation of Skyrmion at room temperature were investigated using ferromagnetic thin films with perpendicular magnetic anisotropy. (1) In the experimental research using Co/Ni multilayer films, it observed the movement of the magnetic domain structures in magnetic wires, however it did not observed the Skyrmions. (2) In the research using numerical simulations, we investigated the nucleation and annihilation conditions of Skyrmions in Co / Ni multilayers and clarified the conditions that the Skyrmion exists stably at room temperature.
As other research, we investigated that (3) the magnitude of the topological Hall effect depending on the magnetization structure in the cross-shaped magnetic wire, and that (4) the changing the magnetic domain structures in the Ni wire on the piezoelectric substrate LiNbO3.
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| Free Research Field |
スピントロニクス
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