Small- and wide-angle scattering measurement of suppression of Peielrs distortion in liquids
| Project/Area Number |
21740265
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics II
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| Research Institution | Keio University |
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Principal Investigator |
CHIBA Ayano Keio University, 理工学部, 助教 (20424195)
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| Project Period (FY) |
2009 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
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| Keywords | 液体 / 金属 / 圧力誘起相転移 / パイエルス歪 / 液体液体相転移 / 静的構造 / 圧力 / 放射光 |
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| Research Abstract |
It is well-known that there are pressure-induced suppressions of distortions in crystalline systems. For liquids, same kinds of pressure-induced structural changes have been expected. To clarify the possibility of such structural changes and how pressure affect the structure in liquids, we performed x-ray diffraction measurements under high pressure and high temperature. We designed a new pressure cell to cover wide scale (i.e., low scattering angles) of fluctuations, and studied polymer melt and liquid GeTe mixtures. For the polymer melt, we found a pressure-induced second-order-like phase transition for the first time, and for the liquid GeTe, we clarified the phase diagram of this liquid system under pressure.
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Report
(3 results)
Research Products
(34 results)
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[Presentation] 溶融高分子の中距離秩序2011
Author(s)
千葉文野, 船守展正, 中山和也, 大石泰生, 辻和彦, 竹中幹人
Organizer
日本物理学会第66回年次大会
Place of Presentation
新潟大学五十嵐キャンパス
Year and Date
2011-03-26
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[Presentation] Pressure-Induced Structural Change of Liquid Group-V Elements and Liquid Group-IV-VI Compounds2009
Author(s)
A.Chiba, M.Tomomasa, T.Hayakawa, A.Hinzmann, R.Takahashi, J.Nakamura, T.Tsukatani, T.Kumazawa, K.Tsuji
Organizer
AIRAPT-22
Place of Presentation
Tokyo International Exchange Center, Odaiba, Tokyo, Japan
Year and Date
2009-07-31
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