Semi-quantitative theory of the structures of simple ionic crystals

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DC Field	Value	Language
dc.contributor.author	Narayan, R.	-
dc.date.accessioned	2005-12-29T04:53:19Z	-
dc.date.available	2005-12-29T04:53:19Z	-
dc.date.issued	1981-07	-
dc.identifier.citation	Pramana, 1981, Vol. 17, p13-23.	en
dc.identifier.issn	0304-4289	-
dc.identifier.uri	http://hdl.handle.net/2289/941	-
dc.description.abstract	A simple theory is developed which shows that the regions of stability of the CsCl, NaCl and ZnS structures can be demarcated in a two-dimensional plot of the radius ratio versus the strength of the van der Waals interaction. There is good agreement with experiment. The effect of pressure on these structures is explained qualitatively. The increased occurrence of the ZnS structure and the decreased stability of the CsCl structure in the A²¯ B²¯ crystals compared to the A+B¯ crystals is also explained. Finally it is shown that the radius ratio and the polarizabilities of the ions are the important factors that determine the structures of AB2 crystals.	en
dc.format.extent	480956 bytes	-
dc.format.mimetype	application/pdf	-
dc.language.iso	en	en
dc.publisher	Indian Academy of Sciences, Bangalore, India.	en
dc.rights	Indian Academy of Sciences, Bangalore, India.	en
dc.subject	Ionic crystals	en
dc.subject	Crystal structures	en
dc.subject	Repulsion potential	en
dc.subject	van der Waals interactions	en
dc.title	Semi-quantitative theory of the structures of simple ionic crystals	en
dc.type	Article	en
Appears in Collections:	Research Papers (SCM)

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