Liquid-glass transformation as seen in m-TCP by depolarized light scattering

M. Soltwisch; A. Spiroski; A. Kisliuk; A. P. Sokolov; E. Rössler; D. Quitmann

doi:10.1080/01418639508238558

Liquid-glass transformation as seen in m-TCP by depolarized light scattering

M. Soltwisch
, A. Spiroski
, A. Kisliuk
, A. P. Sokolov
, E. Rössler
, D. Quitmann

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

5 Scopus citations

Abstract

Depolarized light-scattering spectra have been measured for the molecular glass-former m-tricresylphosphate (m-TCP), for which the slow relaxation behaviour was known between T_gand 1·5 T_g. Considering scattering from TA sound waves and from local fluctuations, and using a viscoelastic model, a good description of the spectra is achieved, including the central (quasielastic) line. The quasielastic part is compared with the slow α-relaxation measured by NMR. The damping of the TA modes is much stronger than one expects from α-relaxation only. Connection is made with the fast relaxation seen in low-frequency Raman scattering.

Original language	English
Pages (from-to)	683-691
Number of pages	9
Journal	Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties
Volume	71
Issue number	4
DOIs	https://doi.org/10.1080/01418639508238558
State	Published - Apr 1995
Externally published	Yes

Funding

This work was supported by DFG through SFG 337. We are obliged to A. Kudlik and F. Gall for making unpublished results available.

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10.1080/01418639508238558

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title = "Liquid-glass transformation as seen in m-TCP by depolarized light scattering",

abstract = "Depolarized light-scattering spectra have been measured for the molecular glass-former m-tricresylphosphate (m-TCP), for which the slow relaxation behaviour was known between Tgand 1·5 Tg. Considering scattering from TA sound waves and from local fluctuations, and using a viscoelastic model, a good description of the spectra is achieved, including the central (quasielastic) line. The quasielastic part is compared with the slow α-relaxation measured by NMR. The damping of the TA modes is much stronger than one expects from α-relaxation only. Connection is made with the fast relaxation seen in low-frequency Raman scattering.",

author = "M. Soltwisch and A. Spiroski and A. Kisliuk and Sokolov, \{A. P.\} and E. R{\"o}ssler and D. Quitmann",

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doi = "10.1080/01418639508238558",

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T1 - Liquid-glass transformation as seen in m-TCP by depolarized light scattering

AU - Soltwisch, M.

AU - Spiroski, A.

AU - Kisliuk, A.

AU - Sokolov, A. P.

AU - Rössler, E.

AU - Quitmann, D.

PY - 1995/4

Y1 - 1995/4

N2 - Depolarized light-scattering spectra have been measured for the molecular glass-former m-tricresylphosphate (m-TCP), for which the slow relaxation behaviour was known between Tgand 1·5 Tg. Considering scattering from TA sound waves and from local fluctuations, and using a viscoelastic model, a good description of the spectra is achieved, including the central (quasielastic) line. The quasielastic part is compared with the slow α-relaxation measured by NMR. The damping of the TA modes is much stronger than one expects from α-relaxation only. Connection is made with the fast relaxation seen in low-frequency Raman scattering.

AB - Depolarized light-scattering spectra have been measured for the molecular glass-former m-tricresylphosphate (m-TCP), for which the slow relaxation behaviour was known between Tgand 1·5 Tg. Considering scattering from TA sound waves and from local fluctuations, and using a viscoelastic model, a good description of the spectra is achieved, including the central (quasielastic) line. The quasielastic part is compared with the slow α-relaxation measured by NMR. The damping of the TA modes is much stronger than one expects from α-relaxation only. Connection is made with the fast relaxation seen in low-frequency Raman scattering.

UR - https://www.scopus.com/pages/publications/0043257587

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DO - 10.1080/01418639508238558

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SN - 1364-2812

VL - 71

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EP - 691

JO - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties

JF - Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties

IS - 4

ER -

Liquid-glass transformation as seen in m-TCP by depolarized light scattering

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