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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3683
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dc.contributor.authorGupta, Raj Kumar-
dc.contributor.authorSuresh, K.A.-
dc.contributor.authorKumar, Sandeep-
dc.contributor.authorLopatina, L.M.-
dc.contributor.authorSelinger, R.L.B.-
dc.contributor.authorSelinger, J.V.-
dc.date.accessioned2008-12-18T10:31:17Z-
dc.date.available2008-12-18T10:31:17Z-
dc.date.issued2008-10-07-
dc.identifier.citationPhysical Review E, 2008, Vol.78, p041703en
dc.identifier.issnE-ISSN: 1550-2376-
dc.identifier.issnP-ISSN: 1539-3755-
dc.identifier.urihttp://hdl.handle.net/2289/3683-
dc.description.abstractLangmuir monolayers of chiral liquid crystals on the surface of water exhibit orientational waves with complex spatiotemporal patterns. These patterns arise from a collective precession of the mesogenic molecules, driven by the evaporation of water through the monolayer. We investigate the behavior of these orientational waves around topological defects in the molecular orientation. Through Brewster angle microscopy, we find that the waves form a reversing spiral pattern, which rotates about the central vortex. With increasing relative humidity, the rotation slows and then stops. We model the system theoretically, and show that predicted patterns are in good agreement with the experiments.en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.urihttp://dx.doi.org/10.1103/PhysRevE.78.041703en
dc.rights2008 The American Physical Societyen
dc.titleSpatiotemporal patterns in a Langmuir monolayer due to driven molecular precessionen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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