1.
Phys Rev Lett
; 93(24): 247801, 2004 Dec 10.
Artigo
em Inglês
| MEDLINE
| ID: mdl-15697859
RESUMO
An intermediate surface hexatic phase between the liquid and the crystalline phases has been found for the first time in a lyotropic lamellar liquid-crystal system. This phase is highly unusual in that it has long-range sixfold bond-orientational order but liquidlike nearest-neighbor positional correlations, and could represent a significant departure from our current understanding of defect-mediated melting in two dimensions.