• Bloch enhancement of electric field gradient in Fe and Cu host alloys

    • Fulltext


        Click here to view fulltext PDF

      Permanent link:

    • Keywords


      Radial antishielding; Bloch-enhancement field-gradient; cubic host-metals

    • Abstract


      The Bloch enhancement factor α(kf) of the electric field gradient has been evaluated for the half-filledd-core Fe host metal and completely filledd-core Cu host metal in single orthogonalized plane wave (OPW) approximation. For this purpose the radially-dependent antishielding factors,γ(r) have been calculated in non-orthogonal Hartree-Fock perturbation theory (NHFPT). The results show that the contributions of antishielding to α(kf) from the plane wave-plane wave part and the core part of the OPW state are individually large but opposite in sign and thereby lead to partial cancellation. The net effect of antishielding on α(kf) is found to be − 5.6% in Fe and 14% in Cu.

    • Author Affiliations


      P Tripathi1 N C Mohapatra1

      1. Department of Physics, Berhampur University, Berhampur - 760 007, India
    • Dates

  • Pramana – Journal of Physics | News

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.