Nonmonotonic evolution of density fluctuations during glass relaxation

John C. Mauro, Sezen Soyer Uzun, Wim Bras, Sabyasachi Sen

Research output: Contribution to journalArticlepeer-review

43 Scopus citations

Abstract

A fundamental understanding of glass relaxation behavior is vital to the glass and polymer science communities. While prior work has focused on relaxation of first-order thermodynamic properties such as enthalpy and density, we present theoretical and experimental results showing that fluctuations in enthalpy and density relax nonmonotonically. These results provide direct evidence for dynamical heterogeneities and their close association with density fluctuations. Our results imply that density fluctuations, and hence light scattering, can be minimized through design of thermal history.

Original languageEnglish (US)
Article number155506
JournalPhysical Review Letters
Volume102
Issue number15
DOIs
StatePublished - Apr 17 2009

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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