Crystallization dynamics on curved surfaces

Authors
García, Nicolás; Vega, Daniel Alberto; Gomez, Leopoldo Raimundo
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
We study the evolution from a liquid to a crystal phase in two-dimensional curved space. At early times, while crystal seeds grow preferentially in regions of low curvature, the lattice frustration produced in regions with high curvature is rapidly relaxed through isolated defects. Further relaxation involves a mechanism of crystal growth and defect annihilation where regions with high curvature act as sinks for the diffusion of domain walls. The pinning of grain boundaries at regions of low curvature leads to the formation of a metastable structure of defects, characterized by asymptotically slow dynamics of ordering and activation energies dictated by the largest curvatures of the system. These glassylike ordering dynamics may completely inhibit the appearance of the ground-state structures.
Fil: García, Nicolás. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Cientifico Tecnol.conicet - Bahia Blanca. Instituto de Fisica del Sur; Universidad Nacional del Sur;
Fil: Vega, Daniel Alberto. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Cientifico Tecnol.conicet - Bahia Blanca. Instituto de Fisica del Sur; Universidad Nacional del Sur;
Fil: Gomez, Leopoldo Raimundo. Consejo Nacional de Invest.cientif.y Tecnicas. Centro Cientifico Tecnol.conicet - Bahia Blanca. Instituto de Fisica del Sur; Universidad Nacional del Sur;
Subject
Crystallization
Hexagonal crystals
Curved Geometries
Ciencias Naturales y Exactas
Ciencias Físicas
Física de Los Materiales Condensados
Access level
Open access
License
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/688