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    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/045/0124

    • Keywords

       

      BiGaO$_3$ perovskite; optical absorption; first principle; band structure.

    • Abstract

       

      Some fundamental physical properties of BiGaO$_3$ were investigated under pressure and temperature effect using GGA and LDA. The effect of orientation on Debye temperature and sound wave velocities were estimated from elastic constants. The bulk modulus value of BiGaO$_3$ is a sign of its high hardness, because it is linked to an isotropic deformation. BiGaO$_3$ is a semiconductor and ductile material, with covalent (Ga–O) and ionic Bi-O bonding. The opticaltransitions were observed when electrons pass from the top of the valence band (O-2p) to the bottom of the conduction band (Ga-4p or Bi-6p). The thermodynamic parameters were determined in temperature and pressure ranging from 0 to 1800 K and 0 to 50 GPa.

    • Author Affiliations

       

      M A GHEBOULI1 2 B GHEBOULI3 L KRACHE4 SULTAN ALOMAIRY5 M FATMI2 T CHIHI2 M REFFAS2

      1. Department of Chemistry, Faculty of Technology, University of Mohamed Boudiaf, 28000 M’sila, Algeria
      2. Research Unit on Emerging Materials (RUEM), University of Setif 1, 19000 Sétif, Algeria
      3. Laboratory of Studies Surfaces and Interfaces of Solids Materials, Department of Physics, Faculty of Science, University Ferhat Abbas of Setif 1, 19000 Se´tif, Algeria
      4. PQSD Laboratory, Department of Physics, Faculty of Science, University Ferhat Abbas of Setif 1, 19000 Sétif, Algeria
      5. Department of Physics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia

    • Dates

       
      Published
      2 July 2022
      Manuscript received
      12 October 2021
      Accepted
      13 March 2022
      Final version published online
      2 July 2022

  • Bulletin of Materials Science | News

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    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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