Cofocal conics in smectics C
Résumé
Cofocal conics formed in a smectic A phase are observed below the A → C transition temperature. In the case of an isolated toric defect a new line appears joining the centre to two opposite points on the singular circle. It is shown from topological considerations, that this line is a S = - 1 disclination line for the τ-director.
Origine : Accord explicite pour ce dépôt