Interconversion of multiferroic domains and domain walls

E. Hassanpour, M. C. Weber (), Y. Zemp, L. Kuerten, A. Bortis, Y. Tokunaga, Y. Taguchi, Y. Tokura, A. Cano, Th. Lottermoser and M. Fiebig
Additional contact information
E. Hassanpour: ETH Zurich
M. C. Weber: ETH Zurich
Y. Zemp: ETH Zurich
L. Kuerten: ETH Zurich
A. Bortis: ETH Zurich
Y. Tokunaga: University of Tokyo
Y. Taguchi: RIKEN Center for Emergent Matter Science (CEMS)
Y. Tokura: RIKEN Center for Emergent Matter Science (CEMS)
A. Cano: ETH Zurich
Th. Lottermoser: ETH Zurich
M. Fiebig: ETH Zurich

Nature Communications, 2021, vol. 12, issue 1, 1-6

Abstract: Abstract Systems with long-range order like ferromagnetism or ferroelectricity exhibit uniform, yet differently oriented three-dimensional regions called domains that are separated by two-dimensional topological defects termed domain walls. A change of the ordered state across a domain wall can lead to local non-bulk physical properties such as enhanced conductance or the promotion of unusual phases. Although highly desirable, controlled transfer of these properties between the bulk and the spatially confined walls is usually not possible. Here, we demonstrate this crossover by confining multiferroic Dy0.7Tb0.3FeO3 domains into multiferroic domain walls at an identified location within a non-multiferroic environment. This process is fully reversible; an applied magnetic or electric field controls the transformation. Aside from expanding the concept of multiferroic order, such interconversion can be key to addressing antiferromagnetic domain structures and topological singularities.

Date: 2021
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DOI: 10.1038/s41467-021-22808-7

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