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Real-space observation of ferroelectrically induced magnetic spin crystal in SrRuO3

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Seddon, S. D., Dogaru, D. E., Holt, S. J. R., Rusu, D., Peters, J. J. P., Sanchez, A. M. and Alexe, M. (Marin) (2021) Real-space observation of ferroelectrically induced magnetic spin crystal in SrRuO3. Nature Communications, 12 (1). 2007. doi:10.1038/s41467-021-22165-5

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Official URL: https://doi.org/10.1038/s41467-021-22165-5

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Abstract

Unusual features in the Hall Resistivity of thin film systems are frequently associated with whirling spin textures such as Skyrmions. A host of recent investigations of Hall Hysteresis loops in SrRuO3 heterostructures have provided conflicting evidence for different causes for such features. We have constructed an SrRuO3-PbTiO3 (Ferromagnetic – Ferroelectric) bilayer that exhibits features in the Hall Hysteresis previously attributed to a Topological Hall Effect, and Skyrmions. Here we show field dependent Magnetic Force Microscopy measurements throughout the key fields where the ‘THE’ presents, revealing the emergence to two periodic, chiral spin textures. The zero-field cycloidal phase, which then transforms into a ‘double-q’ incommensurate spin crystal appears over the appearance of the ‘Topological-like’ Hall effect region, and develop into a ferromagnetic switching regime as the sample reaches saturation, and the ‘Topological-like’ response diminishes. Scanning Tunnelling Electron Microscopy and Density Functional Theory is used to observe and analyse surface inversion symmetry breaking and confirm the role of an interfacial Dzyaloshinskii–Moriya interaction at the heart of the system.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
SWORD Depositor: Library Publications Router
Journal or Publication Title: Nature Communications
Publisher: Springer Nature
ISSN: 2041-1723
Official Date: 31 March 2021
Dates:
DateEvent
31 March 2021Published
4 March 2021Accepted
Volume: 12
Number: 1
Article Number: 2007
DOI: 10.1038/s41467-021-22165-5
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access

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