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Imaging antiferromagnetic antiphase domain boundaries using magnetic Bragg diffraction phase contrast

Kim, MG; Miao, H; Gao, B; Cheong, S-W; Mazzoli, C; Barbour, A; Hu, W; ... Kiryukhin, V; + view all (2018) Imaging antiferromagnetic antiphase domain boundaries using magnetic Bragg diffraction phase contrast. Nature Communications , 9 , Article 5013. 10.1038/s41467-018-07350-3. Green open access

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Abstract

Manipulating magnetic domains is essential for many technological applications. Recent breakthroughs in Antiferromagnetic Spintronics brought up novel concepts for electronic device development. Imaging antiferromagnetic domains is of key importance to this field. Unfortunately, some of the basic domain types, such as antiphase domains, cannot be imaged by conventional techniques. Herein, we present a new domain projection imaging technique based on the localization of domain boundaries by resonant magnetic diffraction of coherent X rays. Contrast arises from reduction of the scattered intensity at the domain boundaries due to destructive interference effects. We demonstrate this approach by imaging antiphase domains in a collinear antiferromagnet Fe2Mo3O8, and observe evidence of domain wall interaction with a structural defect. This technique does not involve any numerical algorithms. It is fast, sensitive, produces large-scale images in a single-exposure measurement, and is applicable to a variety of magnetic domain types.

Type: Article
Title: Imaging antiferromagnetic antiphase domain boundaries using magnetic Bragg diffraction phase contrast
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1038/s41467-018-07350-3
Publisher version: https://doi.org/10.1038/s41467-018-07350-3
Language: English
Additional information: This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Keywords: Imaging techniques, Magnetic properties and materials
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/10064630
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