Elementary excitation measured under a temperature gradient by neutron scattering
| Project/Area Number |
25287094
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Condensed matter physics II
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
SHAMOTO Shin-ichi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究主席 (90235698)
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| Co-Investigator(Kenkyū-buntansha) |
KODAMA Katsuaki 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 量子ビーム応用研究センター, 研究主幹 (10313115)
ISHIKADO Motoyuki 一般財団法人総合科学研究機構, 東海事業センター 利用研究促進部, 技師 (90513127)
KAJIMOTO Ryoichi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J-PARCセンター, 主任研究員 (30391254)
MORI Michiyasu 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究主幹 (30396519)
MAEKAWA Sadamichi 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, センター長 (60005973)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥19,630,000 (Direct Cost: ¥15,100,000、Indirect Cost: ¥4,530,000)
Fiscal Year 2015: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2013: ¥14,170,000 (Direct Cost: ¥10,900,000、Indirect Cost: ¥3,270,000)
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| Keywords | Spintronics / Spin Seebeck effect / Neutron scattering / Temperature gradient / Yttrium iron garnet / Spin wave / 中性子散乱 / スピン流 / イットリウム鉄ガーネット / YIG / 鉄系超伝導体 / スピン物性 / 強磁性体 / スピン波 |
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| Outline of Final Research Achievements |
We have studied spin wave of yttrium iron garnet (YIG) crystal with high performance for spin Seebeck effect under temperature gradient by inelastic neutron scattering spectrometers, 4SEASONS and AMATERAS at J-PARC/MLF. The low energy spin wave intensity measured at (220) magnetic Bragg peak position showed a little increase to the opposite direction at +q and -q points under a temperature gradient less than 1.4K/mm. The observed change was comparable to error bar. During a series of our study, extremely wide energy range of YIG spin wave from about 10 microeV to 90 meV (upper boundary) is successfully explored for the first time by using state-of-the-art inelastic neutron scattering spectrometers, DNA, AMATERAS, and 4SEASONS at J-PARC/MLF.
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Report
(4 results)
Research Products
(22 results)
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[Journal Article] Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi32014
Author(s)
S. Pyon, K. Kudo, J. Matsumura, H. Ishii, G. Matsuo, M. Nohara, H. Hojo, K. Oka, M. Azuma, V. Ovidiu Garlea, K. Kodama, and S. Shamoto
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Journal Title
Journal of the Physical Society of Japan
Volume: 83
Issue: 9
Pages: 093706-093706
DOI
NAID
Related Report
Peer Reviewed
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[Presentation] Neutron diffraction imaging at NOVA (J-PARC), HRPD, RESA, and TNRF (JRR-3)2014
Author(s)
Shin-ichi Shamoto, Tadashi Imaki, Hidetoshi Oshita, Takeshi Nakatani, Katsuaki Kodama, Naokatsu Kaneko, Hiroshi Suzuki, Hiroshi Iikura, Atsushi Moriai, Masahito Matsubayashi, Naoki Igawa, Kenji Yamaguchi, Kensaku Sakamoto, Kentaro Suzuya, Toshiya Otomo
Organizer
ICANS XXI
Place of Presentation
Mito, Ibaraki, Japan
Year and Date
2014-09-24 – 2014-10-03
Related Report
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