3 papers
cond-mat.mtrl-sci2026
Ferroelectric switching at edge dislocations in BaTiO modelled at the atomic scale
Himal Wijekoon, Pierre Hirel, Anna Grünebohm
Ferroelectric switching governs the functional properties of ferroelectric perovskites. It is widely accepted that this switching depends on domain nucleation and pinning and that…
cond-mat.mtrl-sci2025
Coupled electromigration-nanoindentation study on dislocation nucleation in SrTiO3
Chukwudalu Okafor, Ahmad Sayyadi-Shahraki, Sebastian Bruns +5
Modern functional oxides are mainly engineered by doping, essentially by tuning the defect chemistry. Recent studies suggest that dislocations offer a new perspective for enhancing…
cond-mat.mtrl-sci2025
Dislocations and plasticity of KTaO perovskite modeled with a new interatomic potential
Pierre Hirel, Franck Junior Kakdeu Yewou, Jiawen Zhang +3
Potassium tantalate KTaO3 is a cubic, paraelectric perovskite ceramic that exhibits surprising ductility at room temperature as most recently reported. Much like strontium titanate…