23 citations · 42 across the 5 of their papers we have counts for
3 papers · 1 filter
Recovery of harmonic-like behaviour of the polar mode in BaTiO at high pressure
A. Herlihy, T. A. Bird, C. J. Ridley +3
The local structure of high pressure BaTiO has been interrogated by neutron total scattering methods, up to pressures of 4.18 GPa at ambient temperature. Competitive refinement…
Large dynamic scissoring mode displacements coupled to band gap opening in Hybrid Perovskites
Tobias A. Bird, Jungshen Chen, Manila Songvilay +4
Hybrid perovskites are a rapidly growing research area, having reached photovoltaic power conversion efficiencies of over 25 \%. We apply a symmetry-motivated analysis method to an…
Soft mode anisotropy in negative thermal expansion material ReO
Tobias A. Bird, Mark G. L. Wilkinson, David A. Keen +5
We use a symmetry-motivated approach to analyse neutron pair distribution function data to investigate the mechanism of negative thermal expansion (NTE) in ReO. This analysis s…