Published in
Royal Society of Chemistry, Soft Matter, 12(15), p. 2591-2604, 2019
DOI: 10.1039/c8sm02574f
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Lehmann rotation of cholesteric droplets driven by Marangoni convection
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Abstract
We show experimentally and theoretically that the Lehmann effect recently observed by Yoshioka and Araoka (Nat. Commun., 2018,9, 432) in emulsified cholesteric liquid crystal droplets under temperature gradients is due to Marangoni flows rather than to the thermomechanical or chemomechanical couplings often invoked to explain the phenomenon.