Correlation between dynamical heterogeneities, structure and potential-energy 
distribution in a 2D amorphous solid

Mazoyer, S.; Ebert, F.; Maret, G.; Keim, P.

doi:10.1140/Epje/I2011-11101-1

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Correlation between dynamical heterogeneities, structure and potential-energy distribution in a 2D amorphous solid

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Keim, P.
Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Mazoyer, S., Ebert, F., Maret, G., & Keim, P. (2011). Correlation between dynamical heterogeneities, structure and potential-energy distribution in a 2D amorphous solid. The European Physical Journal E, 34(9): 101. doi:10.1140/Epje/I2011-11101-1.

Cite as: https://hdl.handle.net/21.11116/0000-0009-84C0-8

Abstract

We investigate the collective properties of particles in a 2D experimental system which consists of a bi-disperse mixture of colloidal particles confined at an air/water interface. We find a direct correlation between structure and dynamical heterogeneities in this system: particles belonging to locally ordered structures have lower potential energy and are slower than other particles. In a more general way we show that particles with high potential energy are dominating the dynamics especially in the α-relaxation regime.