Dresden 2017 – scientific programme

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DF: Fachverband Dielektrische Festkörper

DF 9: Poster Session

DF 9.20: Poster

Tuesday, March 21, 2017, 14:00–16:00, P1C

Influence of ferroelectric domain walls on the dielectric permittivity of BiFeO₃ — Marek Pasciak, Pavel Marton, •Sabine Körbel, and Jiři Hlinka — Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic

BiFeO₃ with its coexistence of structural distortions (polar displacements, tilting of oxygen octahedra) and magnetic ordering has been a favourite playground for investigating structure-property relationships in multiferroics. Domain engineering adds another level of complexity, with many recent experimental and theoretical works showing rather spectacular changes in material properties. In this work we use a shell model to study how dynamics related to ferroelectric domain walls change the dielectric permittivity.