Publication: Crystal nucleation in a supercooled liquid with glassy dynamics

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Title	Crystal nucleation in a supercooled liquid with glassy dynamics
Authors/Editors*	Ivan Saika-Voivod, Richard K. Bowles, and Peter H. Poole
Where published*	Physical Review Letters
How published*	Journal
Year*	2009
Volume	103
Number
Pages	104502
Publisher
Keywords
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Abstract	In simulations of supercooled, high-density liquid silica we study a range of temperature T in which we ï¬nd both crystal nucleation as well as the characteristic dynamics of a glass forming liquid, including a breakdown of the Stokes-Einstein relation. We ï¬nd that the liquid cannot be observed below a homogeneous nucleation limit (HNL) at which the liquid crystallizes faster than it can equilibrate. We show that the HNL would occur at lower T, and perhaps not at all, if the Stokes-Einstein relation were obeyed, and hence that glassy dynamics plays a central role in setting a crystallization limit on the liquid state in this case. We also explore the relation of the HNL to the Kauzmann temperature, and test for spinodal-like effects near the HNL.