Bi-defects of Nematic Surfactant Bilayers

Details Bi-defects of Nematic Surfactant Bilayers Bi-defects of Nematic Surfactant Bilayers

1998-06-18

arxiv.org/abs/cond-mat/9806212v1

Physics

Condensed Matter

Soft Condensed Matter

RevTeX, 4 pages, 3 figures

Scientific paper

10.1103/PhysRevE.58.R6919

We consider the effects of the coupling between the orientational order of the two monolayers in flat nematic bilayers. We show that the presence of a topological defect on one bilayer generates a nontrivial orientational texture on both monolayers. Therefore, one cannot consider isolated defects on one monolayer, but rather associated pairs of defects on either monolayer, which we call bi-defects. Bi-defects generally produce walls, such that the textures of the two monolayers are identical outside the walls, and different in their interior. We suggest some experimental conditions in which these structures could be observed.

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