• Electronic structure and high pressure phase transition in LaSb and CeSb

    • Fulltext

       

        Click here to view fulltext PDF


      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/042/01/0015-0022

    • Keywords

       

      Electronic structure; high pressure phase transition; lanthanum antimonide; cerium antimonide

    • Abstract

       

      The electronic structure and high pressure structural phase transition in lanthanum and cerium antimonides have been investigated using the tight binding LMTO method. Calculation of the total energy reveals that the simple tetragonal structure is stable at high pressure for both the compounds. In LaSb, the calculated values of the equilibrium cell volume and the cell volume at which phase transition occurs agree with the experimental results. However, in CeSb, the agreement is not so good. We have also predicted the most favouredc/a value in the simple tetragonal phase for these compounds. Further, we present the calculated results on the electronic structure of these systems at the equilibrium as well the reduced cell volumes.

    • Author Affiliations

       

      Sankar P Sanyal1 2 S Mathi Jaya1 3

      1. International Centre for Theoretical Physics, P.O. Box No. 586, Trieste, Italy
      2. Department of Physics, Bhopal University, Bhopal - 462 026, India
      3. Department of Physics, Anna University, Madras - 600 025, 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

© 2017-2019 Indian Academy of Sciences, Bengaluru.