Size and orientation of polar nanoregions characterized by PDF analysis and using a statistical model in a Bi(Mg_1/2Ti_1/2)O₃–PbTiO₃ ferroelectric re-entrant relaxor

Abstract

Local structure information of relaxor ferroelectrics is key to a clear understanding of their structure–property relationships. The size of polar nanoregions is determined based on the local atomic displacement and dielectric response.