Uniform arrays of centre-type topological domains in epitaxial ferroelectric thin films
Zhongwen Li, Hui Shen, Graham Dawson, Zhengzhong Zhang, Yanzong Wang, Feng Nan, Guang Song, Guannan Li, Yangjiang Wu, Hao Liu
Abstract
Spontaneous ferroelectric topological domains are observed in epitaxial BFO films using PFM. The uniform arrays of centre domain structures and their reversible switching are realized utilizing PFM tip-fields assisted by the mobile charges.
Topics & Concepts
FerroelectricityMaterials scienceEpitaxyDomain (mathematical analysis)Topology (electrical circuits)OptoelectronicsCondensed matter physicsNanotechnologyLayer (electronics)Electrical engineeringPhysicsMathematicsDielectricMathematical analysisEngineeringFerroelectric and Piezoelectric MaterialsMultiferroics and related materialsAcoustic Wave Resonator Technologies