Magnetoelectric coupling at the domain level in polycrystalline ErMnO3

• DOI: 10.48550/arxiv.2403.13168
• Publication Date: 2024-03-19
• Authors: Jan Schultheiß; Lukas Puntigam; Maximilian Winkler; S. Krohns; Dennis Meier; Hena Das; Donald M. Evans; I. Kézsmárki
• Keywords: Magnetoelectric effect

We explore the impact of a magnetic field on ferroelectric domain pattern in polycrystalline hexagonal ErMnO3 at cryogenic temperatures. Utilizing piezoelectric force microscopy measurements 1.65 K, we observe modifications topologically protected structure induced by field. These alterations likely result from strain field, facilitated intergranular coupling multiferroics. Our findings give insights into interplay between electric and properties local scale represent so far unexplored pathway for manipulating vortex patterns manganites.