Phys. Rev. A 11, 684–690 (1975)Methods to measure the orientational order in cholesteric liquid crystalsReceived 11 June 1973; revised 11 July 1974; published in the issue dated February 1975 The relationship between a second-rank tensor anisotropy and the orientational order in a cholesteric liquid crystal is derived. The results are confirmed by nuclear-magnetic-resonance (NMR) second-moment measurements on both the cholesteric and nematic phases of a mixture of cholesteryl chloride and p-azoxyanisole. The dipole NMR line shape of this sample in the cholesteric phase is explained entirely by the static cholesteric structure. © 1975 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.11.684
DOI:
10.1103/PhysRevA.11.684
PACS:
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