期刊
LANGMUIR
卷 29, 期 33, 页码 10360-10367出版社
AMER CHEMICAL SOC
DOI: 10.1021/la4017195
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资金
- Portuguese Foundation for Science and Technology (FCT) [PEstOE/FIS/U10618/2011, PTDC/FIS/098254/2008, SFRH/BPD/40327/2007]
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/40327/2007] Funding Source: FCT
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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