24th International Young Scientists Conference Optics and High Technology Material Science - SPO 2023 "STAND WITH UKRAINE"

Multiferroics: controlling magnetism with electric fields

17 Nov 2023, 10:40

30m

248 (Taras Shevchenko National University of Kyiv and Shizuoka University)

Invited Talk Multiferroics and Magnetoelectric Coupling

Speaker

Dr Mads C. Weber (Le Mans University / Institute of Materials and Molecules Le Mans)

Description

Multiferroic materials, which exhibit multiple ferroic orders simultaneously, have garnered significant scientific interest thanks to their potential for electric-field control of magnetism. These materials present unique domain formations and poling behavior under external fields. Here, we will showcase a remarkable reversible transfer of domain patterns between magnetization and electric-polarization spaces in Dy$_{0.7}$Tb$_{0.3}$FeO$_3$ (DTFO) – the ideal multiferroic material. A magnetic field can impress a ferromagnetic domain pattern onto an identical ferroelectric domain pattern, effectively erasing the original magnetic domain. The process can be reversed, completing a cycle of domain transfer. This attribute of DTFO extends our understanding of domain coupling in multiferroics and opens up new possibilities for their application.
Ref.: Hassanpour.... Weber, Science 377, 1109–1112 (2022)