Numerical study on the spin-wave spin current in non-equilibrium systems
| Project/Area Number |
23740284
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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 |
Condensed matter physics II
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| Research Institution | Toho University |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 磁性 / スピントロニクス / スピンエレクトロニクス |
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| Research Abstract |
In this research project, we worked on properties of the spin wave that is driven in the presence of the temperature gradient or the local magnetic field. We clarified the origin of the spin Seebeck effect that is observed in the ferromagnetic sample with temperature gradient. We numerically simulate the dynamics of the magnetization by employing the Landau-Lifshitz-Gilbert equation. Our results showed that the exchange spin wave mode carries the spin current and results the finite bias voltage in the Pt probes. We found that the energy flow and the surface spin wave mode are driven simultaneously by the local magnetic field. We also found the chiral edge spin wave mode in magnetic crystal.
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Report
(4 results)
Research Products
(30 results)
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[Journal Article] Unidirectional spin-wave heat conveyer2013
Author(s)
T. An, V. I. Vasyuchka, K. Uchida, A. V. Chumak, K. Yamaguchi, K. Harii, J. Ohe, M. B. Jungfleisch, Y. Kajiwara, H. Adachi, B. Hillebrands, S. Maekawa, and E. Saitoh
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Journal Title
Nature Materials
Volume: 12
Pages: 549-549
Related Report
Peer Reviewed
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[Presentation] マグノンホール効果の検出2013
Author(s)
田辺 賢士,松本 遼,村上 修一,大江 純一郎,森山 貴広,千葉 大地,小野 輝男
Organizer
日本物理学会
Place of Presentation
広島大学
Year and Date
2013-03-27
Related Report
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[Presentation] Phonon-drag spin Seebeck effect2012
Author(s)
Hiroto Adachi, Junichiro Ohe, Saburo Takahashi, and Sadamichi Maekawa
Organizer
International Conference on Magnetism (ICM2012)
Place of Presentation
Busan, Korea
Year and Date
2012-07-12
Related Report
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