1. RRI Digital Repository
  2. 06. Soft Condensed Matter
  3. Research Papers (SCM)
Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3118
Full metadata record
DC FieldValueLanguage
dc.contributor.authorChandrasekhar, S.-
dc.contributor.authorSavithramma, K.L.-
dc.contributor.authorMadhusudana, N.V.-
dc.date.accessioned2007-06-25T09:03:39Z-
dc.date.available2007-06-25T09:03:39Z-
dc.date.issued1984-
dc.identifier.citationProceedings of the 4th international symposium on liquid crystals & ordered fluids, Las Vegas, 1982, Eds. A C Griffin & J F Johnson, Plenum, 1984, p299-309en
dc.identifier.urihttp://hdl.handle.net/2289/3118-
dc.descriptionRestricted Access.en
dc.description.abstractMcMillan’s mean field model of smectic A is extended so that the translational order parameter is now periodic in two dimensions. The theory is developed for a face-centered rectangular lattice composed of liquid-like columns, taking the molecular cores to be circular discs normal to the columnar axes but with an asymmetrical disposition of the chains. When the axial ratio b/a =square root 3, the rectangular lattice reduces to a hexagonal one and the theory becomes essentially identical to that. proposed very recently by Feldkamp , Handschy and Clark. When b/a = square root 3 or departs from it only slightly, it turns out that the transition from the columnar to the isotropic phase may take place either directly or via a nematic phase, depending on the model potential parameters (a). Interpreting a to be a measure of the chain lengths as in McMillanls theory, the phase diagram is in broad agreement with the trends exhibited by the hexa-n-alkoxybenzoates of triphenylene. For higher values of b/a the theory predicts a columnar-smectic A transition as well. The new smectic A phase is biaxial. The possibility of such a phase occurring in real systems is discussed brieflyen
dc.format.extent334405 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherPlenumen
dc.rights1984 Plenumen
dc.titleExtension of McMillan's model to liquid crystals of disc-like moleculesen
dc.typeArticleen
Appears in Collections:Research Papers (SCM)

Files in This Item:
File Description SizeFormat 
1984 Proc 4th Int sym on LC & ordered fluids p299.pdf
  Restricted Access		Restricted Access326.57 kBAdobe PDFView/Open Request a copy
Show simple item record


Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.