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

D. L. Sidebottom; B. V. Rodenburg; J. R. Changstrom

doi:10.1103/PhysRevB.75.132201

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

D. L. Sidebottom, B. V. Rodenburg, J. R. Changstrom

Department of Physics

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20 Scopus citations

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.

Original language	English (US)
Article number	132201
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	75
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.75.132201
State	Published - Apr 11 2007

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.75.132201

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AU - Rodenburg, B. V.

AU - Changstrom, J. R.

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N2 - 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.

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

Abstract

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