Molecular mechanism for the cross-nucleation between polymorphs.
We use molecular simulations to study the early stages of crystallization in a supercooled liquid of Lennard-Jones particles. We observe the onset of concomitant polymorphism and demonstrate that this phenomenon results from the cross-nucleation of a metastable polymorph on the stable polymorph. We also show that cross-nucleation is selective as it only takes place between polymorphs of almost equivalent free energy. Our simulations provide detailed insights into the molecular mechanism underlying concomitant polymorphism and cross-nucleation between polymorphs.
Desgranges
Caroline
C
Department of Chemical Engineering, University of South Carolina, 301 South Main Street, Columbia, South Carolina 29201, USA.
Delhommelle
Jerome
J