Mechanism of point-defect diffusion in a two-dimensional colloidal crystal
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
19/04/2012
19/04/2012
2011
|
| Resumo |
The dynamics and mechanism of migration of a vacancy point defect in a two-dimensional (2D) colloidal crystal are studied using numerical simulations. We find that the migration of a vacancy is always realized by topology switching between its different configurations. From the temperature dependence of the topology switch frequencies, we obtain the activation energies for possible topology transitions associated with the vacancy diffusion in the 2D crystal. (C) 2011 American Institute of Physics. [doi:10.1063/1.3615287] FAPESP CNPq Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) FUNAPE-UFG (Brazil) |
| Identificador |
APPLIED PHYSICS LETTERS, v.99, n.3, 2011 0003-6951 http://producao.usp.br/handle/BDPI/16406 10.1063/1.3615287 |
| Idioma(s) |
eng |
| Publicador |
AMER INST PHYSICS |
| Relação |
Applied Physics Letters |
| Direitos |
openAccess Copyright AMER INST PHYSICS |
| Palavras-Chave | #SELF-DIFFUSION #BROWNIAN DYNAMICS #TRANSITION #VACANCY #Physics, Applied |
| Tipo |
article original article publishedVersion |
