Connecting structure and dynamics in glass forming materials by photon correlation spectroscopy

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Authors
Sidebottom, David L.
Rodenburg, B. V.
Changstrom, J. R.
Issue Date
2007
Type
Journal Article
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Abstract
We report photon correlation spectroscopy measurements of the α-relaxation in a series of glass forming liquids of widely varying fragility and demonstrate a correlation between the nonergodic level of the liquid and its fragility. This correlation, when combined with a previous correlation established between fragility and the stretching exponent that characterizes the nonexponentiality of the α-relaxation, implies that the α-relaxation should, in general, conform to scaling that is described by just two parameters: the nonergodic level and the glass transition temperature.
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Citation
Sidebottom, D. L., Rodenburg, B. B. & Changstrom, J.R. (2007). Connecting structure and dynamics in glass forming materials by photon correlation spectroscopy. Physical Review B, 75(13), 132201
Publisher
American Physical Society
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ISSN
1098-0121
0163-1829
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