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Atomically resolved transmission electron microscopy and in-situ voltage driven dynamic response of domain walls in lead-free ferroelectrics
Ferroelectric domain walls (DWs) are nano-to-atomic-scale interfaces that separate domains of different polar order. What makes DWs so interesting is their dynamic nature in an electric field, which offers an exciting potential for nanoscale and atomic-scale applications, but, also, more generally, the dynamics of DWs is linked to a fundamental …