Polarity vs Chirality: Functionality from competing magneto-structural instabilities

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Bibliographic Details
Main Authors:	Tardieux, M., Stylianidis, E., Behr, D., Liu, R., Yamaura, K., Khalyavin, D. D., Bowler, D. R., Belik, A. A., Johnson, R. D.
Format:	Preprint
Published:	2024
Subjects:	Materials Science
Online Access:	Acceder al recurso
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author	Tardieux, M. Stylianidis, E. Behr, D. Liu, R. Yamaura, K. Khalyavin, D. D. Bowler, D. R. Belik, A. A. Johnson, R. D.
author_facet	Tardieux, M. Stylianidis, E. Behr, D. Liu, R. Yamaura, K. Khalyavin, D. D. Bowler, D. R. Belik, A. A. Johnson, R. D.
contents	We report a phenomenological magneto-structural model based on competing free-energy terms that couple either polar or chiral distortions in cubic quadruple perovskites, depending on the global direction of magnetic moments. The model naturally explains why some compounds in this material system host magnetically-induced ferroelectricity at low temperature, while others such as CaMn$_3$(Cr$_3$Mn)O$_{12}$, which we characterise experimentally, do not. Importantly, our results suggest a new approach towards developing an applied multiferroic functionality, and can be generalised to other multi-sublattice systems where the magnetic interaction between sublattices is prohibited by spatial inversion.
format	Preprint
id	arxiv_https___arxiv_org_abs_2403_01889
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Polarity vs Chirality: Functionality from competing magneto-structural instabilities Tardieux, M. Stylianidis, E. Behr, D. Liu, R. Yamaura, K. Khalyavin, D. D. Bowler, D. R. Belik, A. A. Johnson, R. D. Materials Science We report a phenomenological magneto-structural model based on competing free-energy terms that couple either polar or chiral distortions in cubic quadruple perovskites, depending on the global direction of magnetic moments. The model naturally explains why some compounds in this material system host magnetically-induced ferroelectricity at low temperature, while others such as CaMn$_3$(Cr$_3$Mn)O$_{12}$, which we characterise experimentally, do not. Importantly, our results suggest a new approach towards developing an applied multiferroic functionality, and can be generalised to other multi-sublattice systems where the magnetic interaction between sublattices is prohibited by spatial inversion.
title	Polarity vs Chirality: Functionality from competing magneto-structural instabilities
topic	Materials Science
url	https://arxiv.org/abs/2403.01889

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