Raman Scattering Study of Rb_3D(SeO_4)_2 Single Crystal in High Temperature Phases : Condensed Matter: Structure, etc.
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概要
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Raman scattering from the deuterated compound Rb_3D(Se0_4)_2 single crystal is studied in the temperature range between 79.2 K and 480.0 K. A new Raman line appears at 827cm^<-1> as much as 60 K below the superionic phase transition temperature, and does not depend on temperature and deuteration. It has been suggested that this line is caused by the stretching motion of a single Se-O in Se0_4 tetrahedra accompanied by the destruction and reconstruction of a hydrogen bond. In low temperature region, the dielectric constant of Rb_3D(Se0_4)_2, measured at 100 KHz, shows a λ-type anomaly at 93 K, while the observed Raman spectra are almost the same above and below this temperature.
- 社団法人日本物理学会の論文
- 2001-01-15
著者
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Matsumoto Yoshiyuki
Department Of Electrical And Mechanical Engineering Faculty Of Science And Technology Kinki Universi
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Matsumoto Yoshiyuki
Department Electrical And Mechanical Engineering Faculty Of Science And Technology Kinki University
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