Dynamical heterogeneity and nonlinear susceptibility in supercooled liquids with short-range attraction
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2007-09-24
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Abstract
Recent work has demonstrated the strong qualitative differences between the dynamics near a glass transition driven by short-ranged repulsion and one governed by short-ranged attraction. Here we study in detail the behavior of nonlinear, higher-order correlation functions that measure the growth of length scales associated with dynamical heterogeneity in both types of systems. We find that this measure is qualitatively different in the repulsive and attractive cases with regards to the wave vector dependence as well as the time dependence of the standard nonlinear four-point dynamical susceptibility. We discuss the implications of these results for the general understanding of dynamical heterogeneity in glass-forming liquids. © 2007 The American Physical Society.
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Charbonneau, P, and DR Reichman (2007). Dynamical heterogeneity and nonlinear susceptibility in supercooled liquids with short-range attraction. Physical Review Letters, 99(13). 10.1103/PhysRevLett.99.135701 Retrieved from https://hdl.handle.net/10161/12586.
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Patrick Charbonneau
Patrick Charbonneau is Professor of Physics at Duke University. His research in soft matter and statistical physics uses theory and computer simulations to study glassy materials and frustrated systems. He also contributes to the history of science, curating projects on quantum and statistical physics as well as food history.
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