25-27 April 2018
Institut de mathématique Simion Stoilow de l'Académie Roumaine
Europe/Bucharest timezone

Sur les défauts du type "anneau de Saturne" des cristaux liquides nématiques/On Saturn-ring defects in a nematic liquid crystal

27 Apr 2018, 09:00


Lia Bronsard (McMaster University)


We consider energy minimizing configurations of a nematic liquid crystal, as described by the Landau-de Gennes model. We focus on an important model problem concerning a nematic surrounding a spherical colloid particle, with normal anchoring at the surface. For topological reasons, the nematic director must exhibit a defect (singularity), which may take the form of a point or line defect. We consider two physical regimes in which "Saturn-ring" configurations will be energetically favorable: the case of colloids of small radius, and the case of strong applied magnetic fields.

Primary author

Lia Bronsard (McMaster University)


Stan Alama (McMaster University, Canada) Xavier Lamy (U. Paul Sabatier, Toulouse, France)

Presentation Materials