2016 Fiscal Year Final Research Report
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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| 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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| Free Research Field |
物性物理学
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