1.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics
; 61(5A): 5407-9, 2000 May.
Artigo
em Inglês
| MEDLINE
| ID: mdl-11031591
RESUMO
Free-standing films of 4-n-heptyloxybenzylidene-4-n-heptylaniline are known to exhibit multiple smectic-I surface layers in the presence of a smectic-A interior. The phase transitions leading to the crystallization of these films have been studied using electron diffraction. Our data are consistent with the scenario of the smectic-I surface layers first developing a crystal-B outermost layer before transforming entirely into the crystal-B phase, to be followed by the freezing of the smectic-A interior. The adjacent crystal-B and smectic-I layers show evidence of orientational epitaxy.