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Chiral Symmetry Breaking during Crystallization: An Advection-Mediated Nonlinear Autocatalytic Process

AuthorsCartwright, Julyan H. E. ; García Ruiz, Juan Manuel ; Piro, Oreste ; Sainz-Díaz, C. Ignacio; Tuval, Idan
Keywords[PACS] Theory and models of crystal growth; physics of crystal growth, crystal morphology and orientation
[PACS] Chaos
[PACS] Multiphase and particle-laden flows
[PACS] Whiskers and dendrites (growth, structure, and nonelectronic properties)
Issue Date1-Apr-2004
PublisherAmerican Physical Society
CitationPhysical Review Letters 93(3): 035502 (1-4) (2004)
AbstractWhen a chiral chemical compound crystallizes from solution or from its melt, stirring often results in the formation of crystals of just one of the two possible enantiomers, while without fluid advection, both enantiomers are formed. We demonstrate with simulations of the dynamics of the system that secondary nucleation is a nonlinear autocatalytic phenomenon that can explain these observations. Furthermore, we present theoretical arguments and experimental results that suggest that at the microscale the mechanism of secondary nucleation is whisker crystal growth and dispersion in the fluid flow.
Description4 pages, 3 images.-- PACS nrs.: 81.10.Aj, 47.52.+j, 47.55.Kf, 68.70.+w.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.93.035502
Appears in Collections:(IACT) Artículos
(IFISC) Artículos
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