TY - JOUR
T1 - Study on dynamic properties of molten noble metal halides by sound absorption
AU - Takeda, S.
AU - Shigyo, N.
AU - Kawakita, Y.
AU - Enosaki, T.
N1 - Funding Information:
The authors would like to thank the Japan Society for Promotion of Science for the financial support on this work.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/10
Y1 - 2002/10
N2 - Sound absorption was measured for molten AgBr-AgI mixtures to investigate the relation between dynamic properties and chemical ordering. The sound absorption for molten AgI shows a large value just above the melting temperature, and then decreases with increasing temperature. The sound absorption for molten AgBr-AgI mixtures increases with temperature from the melting point, shows a maximum around 600 °C, and decreases with increasing temperature. The frequency dependence of the sound absorption for molten AgI was also measured, and the relaxation time and relaxation strength are evaluated from the observed data by assuming a single Debye-type relaxation process. The evaluated relaxation time and relaxation strength are about 5.0 ns and 1.9 × 10-3. This relaxation time corresponds to a relatively slow motion compared with atomic motion, which may suggest a cooperated diffusive motion.
AB - Sound absorption was measured for molten AgBr-AgI mixtures to investigate the relation between dynamic properties and chemical ordering. The sound absorption for molten AgI shows a large value just above the melting temperature, and then decreases with increasing temperature. The sound absorption for molten AgBr-AgI mixtures increases with temperature from the melting point, shows a maximum around 600 °C, and decreases with increasing temperature. The frequency dependence of the sound absorption for molten AgI was also measured, and the relaxation time and relaxation strength are evaluated from the observed data by assuming a single Debye-type relaxation process. The evaluated relaxation time and relaxation strength are about 5.0 ns and 1.9 × 10-3. This relaxation time corresponds to a relatively slow motion compared with atomic motion, which may suggest a cooperated diffusive motion.
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U2 - 10.1016/S0022-3093(02)01713-1
DO - 10.1016/S0022-3093(02)01713-1
M3 - Article
AN - SCOPUS:0036787961
VL - 312-314
SP - 454
EP - 458
JO - Journal of Non-Crystalline Solids
JF - Journal of Non-Crystalline Solids
SN - 0022-3093
ER -