Carregant...
Fitxers
Tipus de document
ArticleVersió
Versió publicadaData de publicació
Tots els drets reservats
Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/18911
Formation of disclinations line near a free nematic interface
Títol de la revista
Director/Tutor
ISSN de la revista
Títol del volum
Recurs relacionat
Resum
We have studied the nucleation and the physical properties of a -1/2 wedge disclination line near the free surface of a confined nematic liquid crystal. The position of the disclination line has been related to the material parameters (elastic constants, anchoring energy, and favored anchoring angle of the molecules at the free surface). The use of a planar model for the structure of the director field (whose predictions have been contrasted to those of a fully three-dimensional model) has allowed us to relate the experimentally observed position of the disclination line to the relevant properties of the liquid crystals. In particular, we have been able to observe the collapse of the disclination line due to a temperature-induced anchoring-angle transition, which has allowed us to rule out the presence of a real disclination line near the nematic/isotropic front in directional growth experiments.
Matèries (anglès)
Citació
Citació
IGNÉS I MULLOL, Jordi, BAUDRY, Jean, LEJCEK, Lubor, OSWALD, Patrick. Formation of disclinations line near a free nematic interface. _Physical Review e_. 1999. Vol. 59, núm. 568-577. [consulta: 23 de gener de 2026]. ISSN: 1063-651X. [Disponible a: https://hdl.handle.net/2445/18911]