Abstract
A possible solution to Kauzzman entropy crisis in a supercooled
liquid is the presence of a kinetic spinodal temperature Tsp below
which the liquid relaxation time exceeds the crystal nucleation time
and the liquid itself is ill defined. We revisit classical nucleation
theory taking into account the viscoelastic response of the liquid. We show
that supercooled liquids can be classified according to the importance
of viscoelastic effects.
When viscoelastic effects are small Kauzzman entropy crisis is avoided
whereas when they dominate the kinetic spinodal can be totally
suppressed and Kauzzman entropy crisis arises 1. We present Monte
Carlo simulations on a lattice system which support our conclusions2.\\
1) PRL 95, 115702 (2005)\\
2) Phyl. Mag. 87, 3-5, 441-448 (2007)
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