Switching the spin cycloid in BiFeO3 with an electric field

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dc.citation.articleNumber2903
dc.citation.journalTitleNature Communications
dc.citation.volumeNumber15
dc.contributor.authorMeisenheimer, Peter
dc.contributor.authorMoore, Guy
dc.contributor.authorZhou, Shiyu
dc.contributor.authorZhang, Hongrui
dc.contributor.authorHuang, Xiaoxi
dc.contributor.authorHusain, Sajid
dc.contributor.authorChen, Xianzhe
dc.contributor.authorMartin, Lane W.
dc.contributor.authorPersson, Kristin A.
dc.contributor.authorGriffin, Sinéad
dc.contributor.authorCaretta, Lucas
dc.contributor.authorStevenson, Paul
dc.contributor.authorRamesh, Ramamoorthy
dc.contributor.orgRice Advanced Materials Institute
dc.date.accessioned2024-07-25T20:55:18Z
dc.date.available2024-07-25T20:55:18Z
dc.date.issued2024
dc.description.abstractBismuth ferrite (BiFeO3) is a multiferroic material that exhibits both ferroelectricity and canted antiferromagnetism at room temperature, making it a unique candidate in the development of electric-field controllable magnetic devices. The magnetic moments in BiFeO3 are arranged into a spin cycloid, resulting in unique magnetic properties which are tied to the ferroelectric order. Previous understanding of this coupling has relied on average, mesoscale measurements. Using nitrogen vacancy-based diamond magnetometry, we observe the magnetic spin cycloid structure of BiFeO3 in real space. This structure is magnetoelectrically coupled through symmetry to the ferroelectric polarization and this relationship is maintained through electric field switching. Through a combination of in-plane and out-of-plane electrical switching, coupled with ab initio studies, we have discovered that the epitaxy from the substrate imposes a magnetoelastic anisotropy on the spin cycloid, which establishes preferred cycloid propagation directions. The energy landscape of the cycloid is shaped by both the ferroelectric degree of freedom and strain-induced anisotropy, restricting the spin spiral propagation vector to changes to specific switching events.
dc.identifier.citationMeisenheimer, P., Moore, G., Zhou, S., Zhang, H., Huang, X., Husain, S., Chen, X., Martin, L. W., Persson, K. A., Griffin, S., Caretta, L., Stevenson, P., & Ramesh, R. (2024). Switching the spin cycloid in BiFeO3 with an electric field. Nature Communications, 15(1), 2903. https://doi.org/10.1038/s41467-024-47232-5
dc.identifier.digitals41467-024-47232-5
dc.identifier.doihttps://doi.org/10.1038/s41467-024-47232-5
dc.identifier.urihttps://hdl.handle.net/1911/117522
dc.language.isoeng
dc.publisherSpringer Nature
dc.rightsExcept where otherwise noted, this work is licensed under a Creative Commons Attribution (CC BY) license.  Permission to reuse, publish, or reproduce the work beyond the terms of the license or beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleSwitching the spin cycloid in BiFeO3 with an electric field
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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