• Unified study of lead: Energy-dependent pseudopotential calculation

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    • Keywords


      Effective mass; pseudopotential; unified study; non-locality; lead

    • Abstract


      A Unified study of lattice-mechanical properties of lead using energy-dependent pseudopotential is carried out. Energy dependence in pseudopotential is considered through the effective mass approximation; the pseudopotential model chosen is the local Heine-Abarenkov model potential. Properties studied include cohesive energy, equilibrium lattice parameter, second-order elastic constants, pressure derivative of second-order elastic constants, equation of state (atT=0 K), phonon-dispersion and effective two-body interaction. The results show fairly good agreement with experiment especially with a modified Heine-Abarenkov potential.

    • Author Affiliations


      A Sarkar1 D Sen1 S Sengupta1

      1. Physics Department, Presidency College, Calcutta - 700 073, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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