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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/926
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dc.contributor.authorNarayan, R.-
dc.date.accessioned2005-12-28T08:44:08Z-
dc.date.available2005-12-28T08:44:08Z-
dc.date.issued1979-11-
dc.identifier.citationPramana, 1979, Vol. 13, p571-579.en
dc.identifier.issn0304-4289-
dc.identifier.urihttp://hdl.handle.net/2289/926-
dc.description.abstractThe problem of the relative stability of ionic structures is still unsolved current semi-empirical theories wrongly predict the caesium halides to have the NaCl structure. We point out here that these theories also predict some of the other alkali halides to occur in cubic ZnS structure. To understand these discrepancies, we study the effect of various interactions (such as second neighbour repulsion, van der Waals interaction and differences in ionic compressibilities) on the relative stability of simple structures. The results throw into question the radius ratio approach. It is suggested that one could allow for the presence of three-body interactions by relaxing the requirement that the repulsion interaction should be strictly proportional to the number of neighbours. Such an approach might explain the relative stability of simple ionic structures.en
dc.format.extent399559 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherIndian Academy of Sciences, Bangalore, India.en
dc.rightsIndian Academy of Sciences, Bangalore, India.en
dc.subjectIonic crystalsen
dc.subjectStability of structuresen
dc.subjectRadiua ratioen
dc.subjectBarn theoryen
dc.titleSome studies on the relative stabilities of the NaCl, CsCl and cubic ZnS structures in ionic crystalsen
dc.typeArticleen
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