Na-Dynamics in Solid Ionic Conductors: 11Al2O3-Na2O and Na2Ti3O7

Dr Ranjan Mittal, Dr Sanghamitra Mukhopadhyay, Mr BALTEJ SINGH GILL, Dr Samrath Lal Chaplot & Dr Sanghamitra Mukhopadhyay
We propose to measure the quasielastic neutron scattering (QENS) spectra to study the diffusion dynamics in beta- alumina (11Al2O3-Na2O) and Na2Ti3O7. The measurement of QENS spectra over 300-1000 K is required to understand diffusion pathways and timescales of Na atom dynamics in these compounds. By combining the phonon and QENS measurements with first-principles phonon calculations and temperature-dependent molecular dynamics simulations, we expect to gain deeper insights of the origin and mechanism of ionic conductivity and...
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