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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3109
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dc.contributor.authorPratibha, R.-
dc.contributor.authorBasappa, Geetha-
dc.contributor.authorMadhusudana, N.V.-
dc.date.accessioned2007-06-25T08:55:37Z-
dc.date.available2007-06-25T08:55:37Z-
dc.date.issued1995-
dc.identifier.citationKey Engineering Materials, 1995, Vol.103, p27-38en
dc.identifier.urihttp://hdl.handle.net/2289/3109-
dc.descriptionRestricted Access.en
dc.description.abstractSmectic liquid crystals have a layered arrangement of rod-like organic molecules. In the smectic A phase the average orientation direction of the molecules is parallel to the layer normal while in the smectic C, it is at an oblique angle. Usually when smectic A liquid crystals separate from the isotropic phase, they do so in the form of short rod-like structures called "batonnets" which are made of focal conic domains. It is now known that the batonnets arise because of the positive interfacial tension anisotropy γ11 - γ1 of the smectic, in which the subscripts refer to directions ~arallel and perpendicular to the layer normal.In the present article we summarise our recent studies on some binary systems in which γ11 - γl is negative, leading to some unusual structures like highly elongated cylinders which are stabilised by concentration gradients. We find other novel structures like discs, and 'ink-bottles' etc, when the interfacial tension anisotropy changes sign during the growth of smectics. In the smectic C phase, we find additional dynamics when the cylinders grow; soliton-like objects are generated at one end and propagate along the cylinder to the other end. Further, the cylinders as a whole have physical locomotion as they grow from the isotropic phase. We discuss the results in terms of simple physical models.en
dc.format.extent1155301 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherTransactions of Technical Publications, Swrtzerlanden
dc.rights1995 Transactions of Technical Publications, Swrtzerlanden
dc.subjectSmectic Aen
dc.subjectSmectic Cen
dc.subjectLiquid Crystalsen
dc.titleUnusual patterns in the growth of smectic liquid crystalsen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

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