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The static lengthscale characterizing the glass transition at lower temperatures

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URI: https://hdl.handle.net/10016/32019
ISSN: 0295-5075
DOI: https://doi.org/10.1209/0295-5075/111/56009
UXXI: AR/0000025265
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Static_EPL(EL)_2015_ps.pdf (930.78 KB)
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2015-09
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IOP Science
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The existence of a static lengthscale that grows in accordance with the dramatic slowing-down observed at the glass transition is a subject of intense interest. Due to limitations on the relaxation times reachable by standard molecular-dynamics techniques (i.e. a range of about 4-5 orders of magnitude) it was until now impossible to demonstrate a significant enough increase in any proposed lengthscale. In this letter we explore the typical scale at unprecedented lower temperatures. A Swap Monte Carlo approach allows us to reach a lengthscale growth by more than 500%. We conclude by discussing the relationship between the observed lengthscale and various models of the relaxation time, proposing that the associated increase in relaxation time approaches experimental values.
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Glass transitions of specific systems, Glasses, Theory and modeling of the glass transition
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Gutiérrez, R., Karmakar, S., Pollack, Y. G., Procaccia, I. (2015). The static lengthscale characterizing the glass transition at lower temperatures. EPL (Europhysics Letters), 111(5), 56009.
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