INVESTIGADORES
VEGA Daniel Alberto
artículos
Título:
Lifshitz-Safran coarsening dynamics in a 2D hexagonal system
Autor/es:
GOMEZ LR; VALLES EM; VEGA DA
Revista:
PHYSICAL REVIEW LETTERS
Referencias:
Año: 2006 vol. 97 p. 188302 - 188306
ISSN:
0031-9007
Resumen:
The coarsening process in a two-dimensional hexagonal system in the region close to both spinodal and
order-order transitions was investigated through the Cahn-Hilliard model.We found a distinctive region of
the phase diagram where the pinning of dislocations plays only a minor role and the dynamics is led by the
triple points. In this region, we found configurations of domains with the same features as those proposed
by Lifshitz. As a consequence, different correlation lengths grow logarithmically in time, in good
agreement with the predictions of coarsening at low temperatures proposed by Safran.
