Synchrotron Mossbauer small-angle scattering using a variable bandwidth nuclear spectrometer
| Project/Area Number |
16H03909
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Quantum beam science
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| Research Institution | National Institutes for Quantum and Radiological Science and Technology |
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Principal Investigator |
Mitsui Takaya 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 放射光科学研究センター, 上席研究員(定常) (20354988)
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| Co-Investigator(Kenkyū-buntansha) |
増田 亮 京都大学, 複合原子力科学研究所, 研究員 (50455292)
平尾 直久 公益財団法人高輝度光科学研究センター, 利用研究促進部門, 研究員 (70374915)
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2018: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
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| Keywords | メスバウアー分光 / 超単色X線 / 放射光 / 小角散乱 / 磁性材料 / 核共鳴散乱 / 金属微細組織 / 超高分解能 / 量子ビーム / メスバウアー効果 / 超高圧 |
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| Outline of Final Research Achievements |
A high performance nuclear spectrometer has been developed to generate bandwidth controlled 57Fe synchrotron radiation Mossbauer gamma rays and it was applied to nuclear resonant small angle scattering spectroscopy. This novel method enables local analysis of the electron magnetic structure related to the micro structure, strain, defects and ordered phase fluctuation of iron-based materials. The developed measurement techniques are impossible with non-directed gamma rays from conventional radioactive isotopes. A variable-bandwidth 57Fe synchrotron Mossbauer source will open up new possibilities of synchrotron studies with an ultra-high resolution of neV to μeV.
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| Academic Significance and Societal Importance of the Research Achievements |
ｎｅＶ～μｅＶ領域でバンド幅可変の放射光メスバウアーγ 線の生成とその応用は、世界的に例がなく、本研究で開発する放射光メスバウアー小角散乱法は、物質内部の微細構造や歪、欠陥や揺らいだ秩序相の電子－磁気構造解析を可能にする新しい量子ビーム利用技術である。開発された計測法は、鋼材、磁性体、超伝導体から地球惑星物質等の広い材料分野での応用が期待できる。ｎｅＶ～μｅＶ領域の放射光メスバウアーγ 線の高出力での生成の成功は、超高分解能放射光X線非弾性散乱を可能にするもので、新しい研究分野の開拓にも繋がる。
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Report
(4 results)
Research Products
(48 results)
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[Journal Article] Valence fluctuating compound Valence fluctuating compound α-YbAlB4 studied by 174Yb Mossbauer spectroscopy and X-ray diffraction using synchrotron radiation2018
Author(s)
Momoko Oura, Shugo Ikeda, Ryo Masuda, Yasuhiro Kobayashi, Makoto Seto, Yoshitaka Yoda, Naohisa Hirao, Saori I. Kawaguchi, Yasuo Ohishi, Shintaro Suzuki, Kentaro Kuga, Satoru Nakatsuji, Hisao Kobayashi
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Journal Title
Physica B
Volume: 536
Pages: 162-164
DOI
Related Report
Peer Reviewed
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[Journal Article] Emergence of a new valence-ordered structure and collapse of the magnetic order under high pressure in EuPtP2018
Author(s)
Akihiro Mitsuda, Shigeki Manabe, Masafumi Umeda, Hirofumi Wada, Kazuyuki Matsubayashi, Yoshiya Uwatoko, Masaichiro Mizumaki, Naomi Kawamura, Kiyofumi Nitta, Naohisa Hirao, Yasuo Ohishi, Naoki Ishimatsu
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Journal Title
J. Phys.: Condens. Matter.
Volume: 30
Issue: 10
Pages: 105603-105603
DOI
Related Report
Peer Reviewed
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[Journal Article] Evolution of synchrotron-radiation-based Mossbauer absorption spectroscopy for various isotopes2017
Author(s)
Makoto Seto, Ryo Masuda, Yasuhiro Kobayashi, Shinji Kitao, Masayuki Kurokuzu, Makina Saito, Shuuich Hosokawa, Hiroki Ishibashi, Takaya Mitsui, Yoshitaka Yoda, Ko Mibu
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Journal Title
Hyperfine Interactions
Volume: 238
Issue: 1
Pages: 78-78
DOI
Related Report
Peer Reviewed
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[Journal Article] Effect of cation substitution on bridgmanite elasticity: A key to interpret seismic anomalies in the lower mantle2016
Author(s)
Hiroshi Fukui, Akira Yoneda, Akihiko Nakatsuka, Noriyoshi Tsujino, Seiji Kamada, Eiji Ohtani, Anton Shatskiy, Naohisa Hirao, Satoshi Tsutsui, Hiroshi Uchiyama, Alfred Q. R. Baron
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Journal Title
Scientific Reports
Volume: 6
Issue: 1
Pages: 33337-33337
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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