Effect of Many Body Interactions on the Isothermal Bulk Modulus of Alkali Halides

Md. Imran Aziz¹, Irfan Ahmed¹ and Ahmed Naeem²

¹Department of Physics,  Shibli National PG College, Azamgarh - 276 001 (India)

²Department of Chemistry, Shibli National PG College, Azamgarh - 276 001 (India)

DOI : http://dx.doi.org/10.13005/msri/050114

ABSTRACT:

The elastic shear stiffness constants of solids, correlated with other cohesive properties, provide a valuable insight into the nature of atomic binding forces. The deviations between calculated and measured values of isothermal bulk modulus of alkali halides have motivated us to frame a model for calculating the same for rock salt and cesium chloride structure alkali halides. The present approach shall include the effect of many body Coulombian, Born-Mayer type overlap repulsive and van der Waals (vdW) interactions in the framework of rigid shell model (R.S.M.). We hope that our results will show excellent agreement with measured isothermal bulk modulus for all the alkali halides.

KEYWORDS: Alkali halides; Elastic shear stiffness constants; Isothermal bulk modulus

Copy the following to cite this article: Aziz M. I, Ahmed I, Naeem A. Effect of Many Body Interactions on the Isothermal Bulk Modulus of Alkali Halides. Mat.Sci.Res.India;5(1)

Copy the following to cite this URL: Aziz M. I, Ahmed I, Naeem A. Effect of Many Body Interactions on the Isothermal Bulk Modulus of Alkali Halides. Mat.Sci.Res.India;5(1). Available from: http://www.materialsciencejournal.org/?p=1911

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