Macroscopic order in a nematic liquid crystal: Perturbation by spontaneous 
director fluctuations

Hamasuna, Daichi; Hashim, Rauzah; Kasatani, Atsuhiro; Luckhurst, Geoffrey R.; Sugimura, Akihiko; Timimi, Bakir A.; Zimmermann, Herbert

doi:10.1103/PhysRevE.91.062502

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Macroscopic order in a nematic liquid crystal: Perturbation by spontaneous director fluctuations

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Zimmermann, Herbert
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Hamasuna, D., Hashim, R., Kasatani, A., Luckhurst, G. R., Sugimura, A., Timimi, B. A., et al. (2015). Macroscopic order in a nematic liquid crystal: Perturbation by spontaneous director fluctuations. Physical Review E, 91(6): 062502. doi:10.1103/PhysRevE.91.062502.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0027-81DE-5

Abstract

The dynamic alignment of the nematic director by near-orthogonal electric and magnetic fields has been investigated. The intermediate states during the relaxation process were found, with the aid of time-resolved deuterium NMR spectroscopy, to be markedly nonuniform. The macroscopic order was perturbed, although the initial and final states of the director appear to be essentially uniform. However, the initial state does have a profound influence on the uniformity of the director in the intermediate states. We have developed a fundamental model based on the effect of spontaneous director fluctuations to explain these unusual NMR observations