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Updated: Dec 23, 2025

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
Defect-Enhanced Polarization Switching in the Improper Ferroelectric LuFeO3
Petrucio Barrozo1,2,3, Didrik René Småbråten4, Yun-Long Tang2,3
1Physics Department, Federal University of Sergipe, São Cristóvão, Sergipe, 49100-000, Brazil.
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.
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