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.
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We omit the index $_{\rm CR}$ since we always refer to cage-relative quantities in the following
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Mazoyer, S., Ebert, F., Maret, G. et al. Correlation between dynamical heterogeneities, structure and potential-energy distribution in a 2D amorphous solid. Eur. Phys. J. E 34, 101 (2011). https://doi.org/10.1140/epje/i2011-11101-1
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DOI: https://doi.org/10.1140/epje/i2011-11101-1