• Electric field gradient in transition metal — scandium

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      https://www.ias.ac.in/article/fulltext/pram/041/05/0443-0451

    • Keywords

       

      Electric field gradient; scandium metal; model potential

    • Abstract

       

      Electric field gradient inhcp transition metal scandium has been calculated as the sum of contributions from lattice ions and conduction electrons. For the lattice contributionqlatt, a point-charge model has been assumed. The contribution from conduction electronsqel, on the other hand, has been evaluated by carrying out an energy-band calculation using non-local transition-metal model potential. The results obtained are:qel=−106.11×1013 esu/cm3 andqlatt=122.17×1013 esu/cm3. The net field gradient (qel+qlatt) of 16.06×1013 esu/cm3 agrees quite well with the experimental result, |qexpt|=13×1013 esu/cm3. Directions of further improvement in the theory are discussed.

    • Author Affiliations

       

      B B Panigrahi1 N C Mohapatra1 2

      1. Department of Physics, Khallikote College, Berhampur - 760 001, India
      2. Department of Physics, Berhampur University, Berhampur - 760 007, India
    • Dates

       
  • Pramana – Journal of Physics | News

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