Bonded Boojum-Colloids in Nematic Liquid Crystals
Source abstract
Abstract
We investigate bonded boojum-colloids in nematic liquid crystals, configurations where two colloids with planar degenerate anchoring are double-bonded through line defects connecting their surfaces. This bonded structure promotes the formation of linear chains aligned with the nematic director. We show that the bonded configuration is the global minimum in systems that favor twist deformations. In addition, we investigate the influence of confinement on the stability of bonded boojum-colloids. Although the unbonded colloid configuration, where the colloids bundle at oblique angles, is favored by confinement, the bonded configuration is again the global minimum for liquid crystals with sufficiently small twist elastic constants.
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Research context
OpenAlex topics: Liquid Crystal Research Advancements · Advanced Materials and Mechanics · Plant Reproductive Biology
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Affiliations
Centro de Física Teórica e Computacional, Universidade de Lisboa, Avenida Professor Gama Pinto 2, PT-1649-003 Lisboa, Portugal
Departamento de Física, Faculdade de Ciências, Universidade de Lisboa, Campo Grande, PT-1749-016 Lisboa, Portugal
Department of Physics, Sharif University of Technology, Post Office Box 11155-9161, Tehran, Iran
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