• R P S Rathore

      Articles written in Pramana – Journal of Physics

    • Lattice vibronics of bcc phase metals (Ti, Zr and Hf) at higher temperatures

      S K Saxena R M Agrawal R P S Rathore

      More Details Abstract Fulltext PDF

      Ashcroft’s analytic bare ion pseudopotential form factor with a modified Hartree dielectric function has been employed to represent the temperature dependent interionic potential. This potential includes both direct ion-ion interaction and indirect ion-electron-ion interaction with and without the effects of ‘d’ bands, in some scantily studied complexbcc metals vizbcc Ti, Zr and Hf. The ab initio radial and tangential force constants extending out to 15th nearest neighbours are computed for the metals. The said potential is used for predicting the binding energy, elastic constants and phonon dispersion of the above mentioned metals and the results are satisfactorily compared with the corresponding measured data.

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