2009 Fiscal Year Final Research Report
Study of the coherent quantum fluctuations competed with formation of the long-range ferroelectric order
| Project/Area Number |
17104004
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| Research Category |
Grant-in-Aid for Scientific Research (S)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Hokkaido University |
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Principal Investigator |
TOSHIROU Yagi Hokkaido University, 名誉教授 (30002132)
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| Co-Investigator(Kenkyū-buntansha) |
TAKESADA Masaki 北海道大学, 大学院・理学研究科, 講師 (30311434)
ITOH Mitsuru 東京工業大学, 応用セラミックス研究所, 教授 (30151541)
TOKUNAGA Masaharu 北海道大学, 名誉教授 (60001682)
ONODERA Ajira 北海道大学, 大学院・理学研究科, 教授 (40142682)
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| Project Period (FY) |
2005 – 2009
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| Keywords | 量子常誘電体 / 量子ゆらぎ / ソフトモード / 極低温光散乱分光 / 時間-振動数結合広帯域分光法 / ミリケルビン領域 / 同位元素置換相転移 / 8)ERECクライオスタット |
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| Research Abstract |
For the observation of the dynamical property of the quantum fluctuations, utilizing a newly designed optical cryostat available with intensive incident radiation at ultra-low temperature, we have established an ultra-low temperature spectroscopic system of a wide dynamic range over 0～10^<11-12> Hz by combination of the time- and frequency domains. A theoretical investigation of the mass-effect on formation of the long-range ferroelectric order has been numerically given by the self-consistent phonon approximation.
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Research Products
(20 results)
