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Growing Length Scales and Their Relation to Timescales in Glass-Forming Liquids

Karmakar, Smarajit and Dasgupta, Chandan and Sastry, Srikanth (2014) Growing Length Scales and Their Relation to Timescales in Glass-Forming Liquids. In: ANNUAL REVIEWS, 5 . pp. 255-284.

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Official URL: http://dx.doi.org/10.1146/annurev-conmatphys-03111...


The question of whether the dramatic slowing down of the dynamics of glass-forming liquids near the structural glass transition is caused by the growth of one or more correlation lengths has received much attention in recent years. Several proposals have been made for both static and dynamic length scales that may be responsible for the growth of timescales as the glass transition is approached. These proposals are critically examined with emphasis on the dynamic length scale associated with spatial heterogeneity of local dynamics and the static point-to-set or mosaic length scale of the random first order transition theory of equilibrium glass transition. Available results for these length scales, obtained mostly from simulations, are summarized, and the relation of the growth of timescales near the glass transition with the growth of these length scales is examined. Some of the outstanding questions about length scales in glass-forming liquids are discussed, and studies in which these questions may be addressed are suggested.

Item Type: Journal Article
Series.: Annual Review of Condensed Matter Physics
Additional Information: Copyright for this article belongs to the ANNUAL REVIEWS, 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
Keywords: glass transition; dynamic length scale; static length scale; dynamic heterogeneity; four-point susceptibility; configurational entropy; random first-order transition theory; point-to-set length scale
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 16 Jul 2014 09:39
Last Modified: 16 Jul 2014 09:39
URI: http://eprints.iisc.ac.in/id/eprint/49470

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