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2014 MRS Fall Meeting


NN1.04 - Emergent Dynamical Symmetries Predict Universality beyond Power Laws


Dec 1, 2014 9:30am ‐ Dec 1, 2014 9:45am

Description

Emergent Lorentzian-, parity- and parabolic- symmetries are analytically proven to govern the facet statistics of slightly undercooled crystal-melt interfaces.  Novel translating fronts whose asymptotic inclinations are offset from the thermodynamic Wulff angles are proven to provide the motive ordering force here.

For each thermodynamically unstable crystal interface that undergoes thermo-kinetic spinodal decomposition, we predict and numerically validate that the characteristic facet length is governed by a universal coarsening law, which includes not only a power law dependency on time, but also the dependence on the orientation of the intial unstable interface.

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