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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2496
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dc.contributor.authorMadhusudana, N.V.-
dc.contributor.authorMoodithaya, K.P.L.-
dc.contributor.authorSuresh, K.A.-
dc.date.accessioned2007-05-28T05:32:50Z-
dc.date.available2007-05-28T05:32:50Z-
dc.date.issued1983-10-
dc.identifier.citationMolecular Crystals and Liquid Crystals, 1983, Vol.99, p239-247en
dc.identifier.issn1058-725X-
dc.identifier.urihttp://hdl.handle.net/2289/2496-
dc.descriptionRestricted Access. Paper presented at the 9th international conference on liquid crystals held at Bangalore in 1982.en
dc.description.abstractWe report an unusual thermal variation of the ordinary refractive index (no) of the nematogenic compound 2-cyano-4-heptyl-phenyl-4'-pentyl-4-biphenyl carboxylate, which has a cyano group making a large angle (~60°) with the molecular axis. As the sample is cooled from the NI transition point, no initially decreases as usual, but on further cooling it shows an increasing trend after reaching a broad minimum. On the other hand, the extraordinary index ne shows the normal temperature variation. X-ray investigations of a monodomain sample show that the nematic has a skewed cybotactic type of short-range order, the tilt angle increasing considerably as the temperature is lowered from the NI transition point. We have made a model calculation to explain the temperature variation of no in terms of the variation of the tilt angle.en
dc.format.extent277581 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherGordon and Breach Science Publishers.en
dc.relation.urihttp://dx.doi.org/10.1080/00268948308072045en
dc.rights1983 OPA (Overseas Publishers Association) N.V.en
dc.titleEffect of skew cybotactic structure on the optical properties of a nematogen with a lateral cyano substituenten
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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