• Structural study of Novel (superhard) material: NiO

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      https://www.ias.ac.in/article/fulltext/pram/070/02/0307-0311

    • Keywords

       

      Phase transition; volume collapse; transition metal compounds.

    • Abstract

       

      We have investigated the pressure-induced phase transition of NiO and other structural properties using three-body potential approach. NiO undergoes phase transition from B1 (rocksalt) to B2 (CsCl) structure associated with a sudden collapse in volume showing first-order phase transition. A theoretical study of high pressure phase transition and elastic behaviour in transition metal compounds using a three-body potential caused by the electron shell deformation of the overlapping ion was carried out. The phase transition pressure and other properties predicted by our model is closer to the phase transition pressure predicted by Eto et al.

    • Author Affiliations

       

      Raja Chauhan1 Sadhna Singh2

      1. Truba Institute of Engineering and Information Technology, Karod-Gandhinagar Bypass Road, Bhopal 462 038, India
      2. Centre for Basic Sciences and M.P. Bhoj (Open) University, Gas Rahat Bhavan, Govindpura, Bhopal 462 023, India
    • Dates

       
  • Pramana – Journal of Physics | News

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