Valence Fluctuation and Domain-Wall Dynamics in Pressure-Induced Neutral-to-Ionic Phase Transition of Organic Charge-Transfer Crystal(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
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概要
- 論文の詳細を見る
A pressure-induced neutral-to-ionic (N-I) transition in tetrathiafulvalene-p-chroranil was studied by infrared vibration spectra. With increasing pressure, two CO stretching bands probing coexisting N and I states merge due to rapid valence fluctuations. From the spectral analyses with the exchange-narrowing model, we derive the pressure dependence of the N-I exchange rate related to the N-I domain-wall motions, which explains the anomalous increase in conductivity under pressure. We also demonstrate a para- to ferro-electric transition at 1.5GPa as well as the N-I transition at 0.95GPa.
- 社団法人日本物理学会の論文
- 2005-11-15
著者
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Okamoto Hiroshi
Department Of Cardiovascular Medicine Hokkaido University Hospital
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MATSUZAKI HIROYUKI
Department of Nuclear Engineering and Management, School of Engineering, The University of Tokyo, To
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KISHIDA Hideo
Department of Applied Physics, Graduate School of Engineering, Nagoya University
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Matsuzaki Hiroyuki
Department Of Advanced Materials Science Graduate School Of Frontier Sciences University Of Tokyo
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Kishida Hideo
Department Of Advanced Materials Science Graduate School Of Frontier Science The University Of Tokyo
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TAKAMATSU Hisashi
Department of Advanced Materials Science, Graduate School of Frontier Science, University of Tokyo
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Okamoto Hiroshi
Department Of Advanced Materials Science Graduate School Of Frontier Sciences University Of Tokyo:cr
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Okamoto Hiroshi
Department Of Advanced Biological Sciences For Regeneration (kotobiken Medical Laboratories) Tohoku
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Takamatsu Hisashi
Department Of Advanced Materials Science Graduate School Of Frontier Science University Of Tokyo
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MATSUZAKI Hiroyuki
Department of Advanced Materials Science, Graduate School of Frontier Science, University of Tokyo
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OKAMOTO Hiroshi
Department of Advanced Materials Science, Graduate School of Frontier Science, University of Tokyo:Correlated Electron Research Center (CERC), National Institute of Advanced Industrial Science and Technology (AIST)
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KISHIDA Hideo
Department of Advanced Materials Science, Graduate School of Frontier Science, University of Tokyo
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