2009 Fiscal Year Final Research Report
Compton Scattering Measurements for Expanded Fluid Alkali Metals : Studies on the Instability of the Low-density Electron Gas
| Project/Area Number |
19204040
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Kyoto University |
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Principal Investigator |
TAMURA Kozaburo Kyoto University, 工学研究科, 名誉教授 (30155262)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUDA Kazuhiro 京都大学, 理学研究科, 准教授 (50362447)
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| Co-Investigator(Renkei-kenkyūsha) |
INUI Masanori 広島大学, 総合科学研究科, 教授 (40213136)
HOSHINO Kozo 広島大学, 総合科学研究科, 教授 (30134951)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 超臨界金属流体 / アルカリ金属 / 低密度電子ガス / コンプトン散乱 / 放射光 |
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| Research Abstract |
Many-electron theory since Wigner's pioneering work has predicted that interacting electron gas suffers a negative compressibility and the static dielectric-function (DF) becomes negative when electron density is sufficiently reduced. However, a problem has remained unsolved as to whether the low-density electron gas with negative DF really exists or not. To clarify it we have measured Compton scattering for fluid rubidium with reducing density of electron gas. It was clearly observed that the Compton profile deviates from the free-electron model at the theoretically predicted electron-density.
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Research Products
(39 results)
