• O P Kulshrestha

      Articles written in Pramana – Journal of Physics

    • Phonon spectra of Zn and Cd using a model pseudopotential approach

      O P Kulshrestha J C Upadhyaya

      More Details Abstract Fulltext PDF

      Recently Animalu has developed a model potential approach to study the electronic properties of transition metals. We have applied the transition metal model potential (TMMP) of Animalu in the local approximation to derive the phonon dispersion curves of Zn and Cd alongΓA,ΓM andΓKM symmetry directions. Our results differ widely from the experimental data. Further we have added the non-local contribution to the dynamical matrix following the scheme of Eschrig and Wonn and found the resuits comparable to the measured ones.

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