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Chattopadhyay S, Uysal A, Stripe B, et al. Structural signal of a dynamic glass transition. Phys Rev Lett. 2009;103(17):175701doi: 10.1103/PhysRevLett.103.175701.
Chattopadhyay, S., Uysal, A., Stripe, B., Evmenenko, G., Ehrlich, S., Karapetrova, E. A., & Dutta, P. (2009). Structural signal of a dynamic glass transition. Physical review letters, 103(17), 175701. https://doi.org/10.1103/PhysRevLett.103.175701
Chattopadhyay, Sudeshna, et al. "Structural signal of a dynamic glass transition." Physical review letters vol. 103,17 (2009): 175701. doi: https://doi.org/10.1103/PhysRevLett.103.175701
Chattopadhyay S, Uysal A, Stripe B, Evmenenko G, Ehrlich S, Karapetrova EA, Dutta P. Structural signal of a dynamic glass transition. Phys Rev Lett. 2009 Oct 23;103(17):175701. doi: 10.1103/PhysRevLett.103.175701. Epub 2009 Oct 22. PMID: 19905770.
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Phys Rev Lett. 2009 Oct 23;103(17):175701. doi: 10.1103/PhysRevLett.103.175701. Epub 2009 Oct 22.

Structural signal of a dynamic glass transition.

Physical review letters

Sudeshna Chattopadhyay, Ahmet Uysal, Benjamin Stripe, Guennadi Evmenenko, Steven Ehrlich, Evguenia A Karapetrova, Pulak Dutta

Affiliations

  1. Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, USA.

PMID: 19905770 DOI: 10.1103/PhysRevLett.103.175701

Abstract

Pentaphenyl trimethyl trisiloxane is an isotropic liquid at room temperature with a dynamic glass transition at 224 K. Using x-ray reflectivity, we see surface density oscillations (layers) develop below 285 K, similar to those seen in other metallic and dielectric liquids and in computer simulations. The layering threshold is approximately 0.23 times the liquid-gas critical temperature. Upon cooling further, there is a sharp increase at 224 K in the persistence of the surface layers into the bulk material, i.e., an apparently discontinuous change in static structure at the glass transition.

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