• A study on the vibrational frequencies, elastic properties and sound velocities of vanadium spinel oxides AV$_2$O$_4$ (A $=$ Mn, Fe and Zn) short-range non-Coulomb potential theoretical model

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      https://www.ias.ac.in/article/fulltext/boms/043/0263

    • Keywords

       

      Vanadium spinels; elastic constants; non-Coulomb interaction potential; vibrational modes; Debye temperature.

    • Abstract

       

      Owing to the fact of the AB$_2$O$_4$ spinel oxide’s chemical and thermal stability, and other intriguing properties make them suitable candidate materials for many applications, including chemical looping and catalytic reactions. To do our investigations, a short-range non-Coulomb potential theoretical model is used to calculate the zone-centre, elastic constants, infrared phonon mode frequencies, Raman phonon mode frequencies, velocities of the sound wave along the highly symmetric three crystallographic-axes and Debye temperature of the vanadium spinel oxides AV$_2$O$_4$ (A $=$ Mn, Fe and Zn). The preliminary results of our calculations show that the interaction inthe second neighbour (V–O) is much stronger than the interaction of the first neighbour (A–O). Moreover, from the analysis of the obtained results of elastic constants, the nature of the studied vanadium spinels are found to beductile.

    • Author Affiliations

       

      A K KUSHWAHA1 R KHENATA2 A BOUHEMADOU3 S AKBUDAK4 R AHMED5 6

      1. Department of Physics, K.N. Govt. P.G. College, Bhadohi 221304, India
      2. Laboratoire de Physique Quantique de la Matie`re et de Mode´lisation Mathe´matique (LPQ3M), Universite´ de Mascara, Mascara 29000, Algeria
      3. Laboratory for Developing New Materials and their Characterizations, University Ferhat Abbas Setif 1, Setif 19000, Algeria
      4. Faculty of Arts and Sciences, Department of Physics, Adiyaman University, Adiyaman 02100, Turkey
      5. Center for High Energy Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan
      6. Faculty of Science, Department of Physics, Universiti Teknologi Malaysia, Skudai 81310, Johor Bahru, Malaysia
    • Dates

       
  • Bulletin of Materials Science | News

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