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    • Keywords


      Raman scattering; phase transition; ferroelectric

    • Abstract


      Raman scattering investigation of phase transition in the ferroelectric Ba0.95Ca0.05TiO3 is reported. The results suggest onset of significant dynamic disorder at 105°C. This corroborates findings of recent structural study regarding large positional disorder associated with Ti and O1 atoms well below the tetragonal to cubic transition temperature (∼150°C).

    • Author Affiliations


      Rekha Rao1 A P Roy2 B A Dasannacharya3 S Balakumar4 R Ilangovan4 P Ramasamy4

      1. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
      2. Spectroscopy Division, Bhabha Atomic Research Centre, Mumbai - 400 085, India
      3. Inter-University Consortium for DAE Facilities, University Campus, Khandwa Road, Indore - 452 001, India
      4. Crystal Growth Centre, Anna University, Madras - 600 025, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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