s-electron ferromagnetism investigated by neutron scattering
| Project/Area Number |
26400334
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | 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 | Osaka University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
MATSUURA Masato 総合科学研究機構, 研究開発部, 副主任研究員 (30376652)
KAMIYAMA Takashi 高エネルギー加速器研究機構, 物質構造科学研究所, 教授 (60194982)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | ゼオライト / アルカリ金属 / ナノクラスター / 強磁性 / 中性子回折 / 磁気構造 |
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| Outline of Final Research Achievements |
K clusters arrayed in zeolite A are known to show ferromagnetic properties although they contain no magnetic elements. We synthesized a much amount of high quality sample and performed neutron diffraction experiments. We obtained magnetic diffraction data of this material for the first time. The Q-dependence of the magnetic form factor was examined. The results clearly indicate that the electrons delocalized over a nanometer size are responsible for the long-range magnetic order. We also found a periodic modulation of the size of the ferromagnetic moments. The obtained results are very fundamental and indispensable for understanding the mechanism of the magnetic ordering in the s-electron system.
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Report
(4 results)
Research Products
(34 results)
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[Journal Article] Magnetic moments and ordered states in pyrochlore iridates Nd2Ir2O7 and Sm2Ir2O7 studied by muon-spin relaxation2017
Author(s)
R. Asih, N. Adam, S. S. M. Tajudin, D. P. Sarid, K. Matsuhira, H. Guo, M. Wakeshima, Y. Hinatsu, T. Nakano, Y. Nozue, S. Sulaiman, M. I. M. Ibrahim, P. K. Biswas, I. Watanabe
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Journal Title
J. Phys. Soc. Jpn.
Volume: 86
Issue: 2
Pages: 0247051-7
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Magnetodielectric detection of magnetic quadrupole order in Ba(TiO)Cu4(PO4)4 with Cu4O12 square cupolas2016
Author(s)
K. Kimura, P. Babkevich, M. Sera, M. Toyoda, K. Yamauchi, G. S. Tucker, J. Martius, T. Fennell, P. Manuel, D. D. Khalyavin, R. D. Johnson, T. Nakano, Y. Nozue, H. M. Ronnow, T. Kimura
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Journal Title
Nat. Commun.
Volume: 7
Issue: 1
Pages: 130391-7
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Absence of Jahn-Teller transition in the hexagonal Ba3CuSb2O9 single crystal2015
Author(s)
Naoyuki Katayama, Kenta Kimura, Yibo Han, Joji Nasu, Natalia Drichko, Yoshiki Nakanishi, Mario Halim,Yuki Ishiguro, Ryuta Satake, Eiji Nishibori, Masahito Yoshizawa, Takehito Nakano, Yasuo Nozue, Yusuke Wakabayashi, Sumio Ishihara, Masayuki Hagiwara, Hiroshi Sawa, and Satoru Nakatsuji
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Journal Title
Proc. Natl. Acad. Sci. USA
Volume: 112
Issue: 30
Pages: 9305-9309
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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