Defect-Enhanced Polarization Switching in the Improper Ferroelectric LuFeO3

Publication Type

Journal Article

Authors

DOI

Abstract

Results of switching behavior of the improper ferroelectric LuFeO3 are presented. Using a model set of films prepared under controlled chemical and growth-rate conditions, it is shown that defects can reduce the quasi-static switching voltage by up to 40% in qualitative agreement with first-principles calculations. Switching studies show that the coercive field has a stronger frequency dispersion for the improper ferroelectrics compared to a proper ferroelectric such as PbTiO3. It is concluded that the primary structural order parameter controls the switching dynamics of such improper ferroelectrics. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Journal

Advanced Materials

Year of Publication

2020

ISSN

09359648

Notes

cited By 0

Research Areas