• Inelastic neutron scattering and lattice dynamics of minerals

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/071/04/0819-0828

    • Keywords

       

      Inelastic neutron scattering; lattice dynamics; thermodynamic properties; ab initio calculations.

    • Abstract

       

      We review current research on minerals using inelastic neutron scattering and lattice dynamics calculations. Inelastic neutron scattering studies in combination with first principles and atomistic calculations provide a detailed understanding of the phonon dispersion relations, density of states and their manifestations in various thermodynamic properties. The role of theoretical lattice dynamics calculations in the planning, interpretation and analysis of neutron experiments are discussed. These studies provide important insights in understanding various anomalous behaviour including pressure-induced amorphization, phonon and elastic instabilities, prediction of novel high pressure phase transitions, high pressure{temperature melting, etc.

    • Author Affiliations

       

      Narayani Choudhury1 S L Chaplot1

      1. Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
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