Dynamical Properties of Glass Transition in n-Propanol
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概要
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Temperature dependence of dynamical properties related to α-relaxation, fast relaxation and boson peak was studied in the liquid-glass trasntion of n-propanol. The depolarized Raman scattering spectra show the remarkable temperature variation related to the fast relaxation and boson peak. While as to the temperature dependence of internal Raman bands higher than 100cm^<-1>, no remarkable change was observed with the exception of the O-H stretching vibrational band. This band reflects inter-molecular hydrogen bonds and marked softening was observed on cooling. The temperature dependence of α-relaxation was studied by broadband dielectric measurements from 100mHz to 10MHz. It is found that the temperature dependence of the relaxation frequency obeys Vogel-Fulcher-Tammann law. The temperature dependence of the fast relaxation was also studied through viscoelastic coupling to longitudinal acoustic phonon by polarized Brillouin scattering. This relaxation is much higher than α-relaxation.
- 理論物理学刊行会の論文
- 1997-06-27
著者
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Jang Min
Research Center For Dielectric And Advanced Matter Physics Pusan National University
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Takagi Yasunari
Department Of Applied Physics And Chemistry The University Of Electro-communications
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Takagi Yasunari
Department O Engineering Physics The University Of Electro-communications:junior College The Univers
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Takagi Yutaka
Laboratory Of Plant Genetics And Breeding Faculty Of Agriculture Saga University
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Kojima Seiji
Institute For Solid State Physics University Of Tokyo
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Yamaura Takashi
Institute Of Applied Physics University Of Tsukuba
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Kojima Seiji
Atomic Energy Research Institute Nihon University
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Kojima Seiji
Department Of Physics Nagoya University
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YAMAURA Takashi
Institute of Applied Physics, University of Tsukuba
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