Numéro
J. Phys. I France
Volume 3, Numéro 7, July 1993
Page(s) 1551 - 1567
DOI https://doi.org/10.1051/jp1:1993200
DOI: 10.1051/jp1:1993200
J. Phys. I France 3 (1993) 1551-1567

Topological defects in lamellar phases: passages, and their fluctuations

J. Goos and G. Gompper

Sektion Physik der Ludwig-Maximilians-Universität München, Theresienstr. 37, 8000 München 2, Germany


(Received 4 March 1993, accepted in final form 23 March 1993)

Abstract
In lamellar phases of ternary amphiphilic mixtures, passages are tube-like connections of neighboring oil- (or water-) layers. Passages form spontaneously due to the thermal fluctuations of the monolayers (or membranes), which separate oil and water. Analogous membrane conformations also exist in binary amphiphilic mixtures, where the membranes are amphiphilic bilayers. We study the shape and the fluctuations of passages. Our analysis is based on the curvature model of fluid membranes, both with and without spontaneous curvature. Passages have a very small bending energy, and show strong fluctuations. The mean radius, the fluctuations of the radius, and the asphericity of the passage are calculated. All these quantities are experimentally accessible.



© Les Editions de Physique 1993

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.