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Abstract
Topological defects and defect phases of rigid and flexibly bent-shaped liquid crystals are reviewed with emphasis on how they are affected by the departure of molecular shapes from a simple rod. The review discusses defects in bent-core uniaxial and hypothetical biaxial nematics, twist-bend nematic, and various frustrated layered bent-core liquid crystals, such as twist-grain boundary phase, nanoscale helical nanofilament phase, and the so-called B7 textures with helical ribbons.
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No potential conflict of interest was reported by the author(s).
Additional information
Funding
AJ acknowledges financial support by the National Science Foundation (NSF) [grant numbers DMR-1904167 and DMR-1904091]. YuN achnowledges support by Hetman Petro Sahaidachnyi National Army Academy (Ukraine). ODL research is supported by NSF [grant numbers DMR-1905053, DMS-2106675, ECCS-190610, ECCS-2122399], and by the Office of Sciences, Department of Energy, USA [grant number DESC0019105].