Isotope Effect on the Dielectric Phase Transitions of 5-Bromo-9-Hydroxyphenalenone
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概要
- 論文の詳細を見る
Dielectric properties have been investigated for proton-deuteron mixed crystals of 5-bromo-9-hydroxyphenalenone with strong intramolecular hydrogen bonds. The fully deuterated compound shows two successive structural transitions, i.e., incommensurate (IC) transition (T_<IC>〜37 K) and lock-in transition (T_C〜20 K). With increasing proton concentration (x), both of the critical temperatures decrease and the transitions disappear at x_<IC>〜0.65 and x_C〜0.25, respectively. This observation suggests that intramolecular tunneling motion of the protons significantly influences the structural phase transitions via the molecular tautomerization process.
- 社団法人日本物理学会の論文
- 1995-06-15
著者
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MOCHIDA Tomoyuki
Department of Chemistry, Faculty of Science, Kobe University
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SUGAWARA Tadashi
Department of Basic Science, Graduate School of Arts and Science, The University of Tokyo
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TOKURA Yoshinori
Joint Research Center for Atom Technology (JRCAT)
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Moritomo Yutaka
Joint Research Center For Atom Technology (jrcat)
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Tokura Yoshinori
Joint Research Center For Atom Technology (jrcat):department Of Physics University Of Tokyo
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Izuoka Akira
Department of Pure and Applied Sciences, University of Tokyo
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Izuoka A
Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo
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Izuoka Akira
Department Of Basic Science Graduate School Of Arts & Sciences The University Of Tokyo
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Sugawara T
Graduate School Of Arts And Sciences The University Of Tokyo
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Sugawara T
Department Of Basic Science Graduate School Of Arts And Science The University Of Tokyo
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Sugawara Tadashi
Department Of Basic Science Graduate School Of Arts And Sciences The University Of Tokyo
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Mochida T
Department Of Chemistry Faculty Of Science Kobe University
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Mochida Tomoyuki
Department Of Chemistry Faculty Of Science Toho University
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Sugawara Tadashi
Department Of Basic Science Graduate School Of Arts & Sciences The University Of Tokyo
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