• H P Sharma

      Articles written in Pramana – Journal of Physics

    • The Born repulsive parameters and dielectric behaviour of alkali halides

      O P Sharma H P Sharma Jai Shanker

      More Details Abstract Fulltext PDF

      The dependence of the Born repulsive parameters of alkali halides on elastic and dielectric data has been discussed. The values of hardness parameter in alkali halides have been recalculated using the revised values of van der Waals energies. It is observed that the two sets of hardness parameter corresponding to elastic and dielectric data differ from each other but become compatible if an effective charge parameter for the ions is introduced. Its usefulness has been demonstrated by calculating the strain derivative of static dielectric constant of alkali halides.

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