Study on dynamic properties of molten noble metal halides by sound absorption

S. Takeda; N. Shigyo; Y. Kawakita; T. Enosaki

doi:10.1016/S0022-3093(02)01713-1

Study on dynamic properties of molten noble metal halides by sound absorption

S. Takeda, N. Shigyo, Y. Kawakita, T. Enosaki

Applied Nuclear Physics

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	454-458
Number of pages	5
Journal	Journal of Non-Crystalline Solids
Volume	312-314
DOIs	https://doi.org/10.1016/S0022-3093(02)01713-1
Publication status	Published - Oct 1 2002

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Materials Chemistry

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10.1016/S0022-3093(02)01713-1

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title = "Study on dynamic properties of molten noble metal halides by sound absorption",

abstract = "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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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.

PY - 2002/10/1

Y1 - 2002/10/1

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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