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Magnetoelectric domain engineering from micrometer to Ångstrøm scales

Magnetoelectric domain engineering from micrometer to Ångstrøm scales

Authors :
Marcela Giraldo
Arkadiy Simonov
Hasung Sim
Ahmed Samir Lotfy
Martin Lilienblum
Lea Forster
Elzbieta Gradauskaite
Morgan Trassin
Je-Geun Park
Thomas Lottermoser
Manfred Fiebig
Source :
Physical Review Research, Vol 6, Iss 3, p 033139 (2024)
Publication Year :
2024
Publisher :
American Physical Society, 2024.

Abstract

The functionality of magnetoelectric multiferroics depends on the formation, size, and coupling of their magnetic and electric domains. Knowing the parameters guiding these criteria is a key effort in the emerging field of magnetoelectric domain engineering. Here we show, using a combination of piezoresponse-force microscopy, nonlinear optics, and x-ray scattering, that the correlation length setting the size of the ferroelectric domains in the multiferroic hexagonal manganites can be engineered from the micron range down to a few unit cells under the substitution of Mn^{3+} ions with Al^{3+} ions. The magnetoelectric coupling mechanism between the antiferromagnetic Mn^{3+} order and the distortive-ferroelectric order remains intact even at substantial replacement of Mn^{3+} by Al^{3+}. Hence, chemical substitution proves to be an effective tool for domain-size engineering in one of the most studied classes of multiferroics.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
26431564
Volume :
6
Issue :
3
Database :
Directory of Open Access Journals
Journal :
Physical Review Research
Publication Type :
Academic Journal
Accession number :
edsdoj.524be3de75dd41399ec4ca2b88c9ae3d
Document Type :
article
Full Text :
https://doi.org/10.1103/PhysRevResearch.6.033139