Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2300
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dc.contributor.authorBasappa, Geetha-
dc.contributor.authorMadhusudana, N.V.-
dc.date.accessioned2007-04-26T10:13:01Z-
dc.date.available2007-04-26T10:13:01Z-
dc.date.issued1996-09-
dc.identifier.citationMolecular Crystals and Liquid Crystals, 1996, Vol.288 ,p161-174en
dc.identifier.issn1058-725X-
dc.identifier.urihttp://hdl.handle.net/2289/2300-
dc.descriptionRestricted Access.en
dc.description.abstractAn electric field couples to the orientational order in liquid crystals through dielectric anisotropy and is conjugate to the order. However the ionic flow produced by the field causes a dissipation of energy in the medium rendering an experimental study of the effect of the field on the order difficult. We have devised a method of measuring the local temperature of the sample, and both the dielectric constant whose value depends on the orientational order and the conductivity which is sensitive to the short range order in the medium. We report the electric field temperature phase diagrams of pentyl cyanobiphenyl (5CB) and octyloxy cyanobiphenyl (8OCB). The results include (a) the field induced enhancement of the orientational order (b) the critical field beyond which the nematic paranematic transition is continuous and (c) the effect of the field on the nematic-smectic A transition in 8OCB. The results are analysed using the appropriate Landau theories.en
dc.format.extent476670 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherGordon and Breach Science Publishers.en
dc.relation.urihttp://dx.doi.org/10.1080/10587259608034593en
dc.rights1996 OPA (Overseas Publishers Association) N.V.en
dc.titleEffect of strong electric fields on phase transitions in some liquid crystalsen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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