Artículo
Defect dynamics in crystalline buckled membranes
Fecha de publicación:
07/2011
Editorial:
American Physical Society
Revista:
Physical Review E: Statistical, Nonlinear and Soft Matter Physics
ISSN:
1539-3755
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We study the dynamics of defect annihilation in flexible crystalline membranes suffering a symmetry-breaking phase transition. The kinetic process leading the system toward equilibrium is described through a Brazovskii-Helfrich-Canham Hamiltonian. In membranes, a negative disclination has a larger energy than a positive disclination. Here we show that this energetic asymmetry does not only affect equilibrium properties, like the Kosterlitz-Thouless transition temperature, but also plays a fundamental role in the dynamic of defects. Both unbinding of dislocations and Carraro-Nelson "antiferromagnetic" interactions between disclinations slow down the dynamics below the Lifshitz-Safran regime observed in flat hexagonal systems. © 2011 American Physical Society.
Palabras clave:
Polimeros
,
Films Delgados
,
Polymer
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Colecciones
Articulos(IFISUR)
Articulos de INSTITUTO DE FISICA DEL SUR
Articulos de INSTITUTO DE FISICA DEL SUR
Citación
Pezzutti, Aldo Daniel; Vega, Daniel Alberto; Defect dynamics in crystalline buckled membranes; American Physical Society; Physical Review E: Statistical, Nonlinear and Soft Matter Physics; 84; 1; 7-2011; 111231-111236
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