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Glass Transition in Supercooled Liquids with Medium-Range Crystalline Order

Tah, Indrajit and Sengupta, Shiladitya and Sastry, Srikanth and Dasgupta, Chandan and Karmakar, Smarajit (2018) Glass Transition in Supercooled Liquids with Medium-Range Crystalline Order. In: PHYSICAL REVIEW LETTERS, 121 (8).

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Official URL: http://dx.doi.org/10.1103/PhysRevLett.121.085703

Abstract

The origin of the rapid dynamical slowdown in glass forming liquids in the growth of static length scales, possibly associated with identifiable structural ordering, is a much debated issue. Growth of medium range crystalline order (MRCO) has been observed in various model systems to be associated with glassy behavior. Such observations raise the question of whether molecular mechanisms for the glass transition in liquids with and without MRCO are the same. In this study we perform extensive molecular dynamics simulations of a number of glass forming liquids and show that the static and dynamic properties of glasses with MRCO are different from those of other glass forming liquids with no predominant local order. We also resolve an important issue regarding the so-called point-to-set method for determining static length scales, and demonstrate it to be a robust method for determining static correlation lengths in glass formers.

Item Type: Journal Article
Additional Information: Copy right for this article belong to AMER PHYSICAL SOC, ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Depositing User: Id for Latest eprints
Date Deposited: 24 Sep 2018 15:37
Last Modified: 24 Sep 2018 15:37
URI: http://eprints.iisc.ac.in/id/eprint/60697

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