期刊
SOFT MATTER
卷 8, 期 48, 页码 11982-11988出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2sm27048j
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- ARRS [P1-0099]
Frustration of chiral ordering is explored in cholesteric liquid crystal droplets with planar degenerate anchoring using numerical modeling. Droplets of variable pitches are studied, demonstrating the role of a gradually increasing cholesteric pitch and the corresponding equilibrium structures. All previously known structures are identified but with notable differences. The structures presented with director fields are complemented with a detailed description of the defect regions. The characteristic half-diameter +2 disclination from previous studies is found to be in fact a double-helix of two lambda(+1) disclination lines, whereas the full-diameter +1 disclination is composed of an alternating series of tau(-1/2) and lambda(+1/2) disclination rings. Finally, two new meta-stable cholesteric structures -Lyre and Yeti- are found, which are characterised by complex compositions of cholesteric disclinations.
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