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Small-Angle Excess Scattering: Glassy Freezing or Local Orientational Ordering?

H. Weber·W. Paul·W. Kob·K. Binder
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Abstract

We present Monte Carlo simulations of a dense polymer melt which shows glass-transition-like slowing-down upon cooling, as well as a build up of nematic order. At small wave vectors q this model system shows excess scattering similar to that recently reported for light-scattering experiments on some polymeric and molecular glass-forming liquids. For our model system we can provide clear evidence that this excess scattering is due to the onset of short-range nematic order and not directly related to the glass transition.

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H. Weber, W. Paul, W. Kob, K. Binder. 1996-12-24. Small-Angle Excess Scattering: Glassy Freezing or Local Orientational Ordering?. https://doi.org/10.1103/physrevlett.78.2136

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