Berlin 2018 – wissenschaftliches Programm

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 6: Ferroelectric Domain Walls II (joint session KFM/TT)

KFM 6.4: Vortrag

Montag, 12. März 2018, 16:15–16:30, EMH 225

Electronic structure and optical absorption at ferroelectric domain walls in BiFeO3 from first principles — •Sabine Körbel1,2, Stefano Sanvito1, and Jirka Hlinka21School of Physics & CRANN, Trinity College, Dublin, Ireland — 2Institute of Physics, Academy of Sciences of the Czech Republic, Prague, Czech Republic

Recent publications on first principles electronic structure of ferroelectric domain walls (FE DW) in BiFeO3 show some variations concerning existence and magnitude of potential steps and band bending at pristine FE DW. We investigated these properties once more, trying to improve understanding by building on previous works in a systematic way. We also tested the hypothesis that FE DW modify the light absorption properties of BiFeO3.

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