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Title: In-situ study of skyrmions at high resolution using differential phase contrast microscopy
Authors: Tan, Hui Ru
Andersen, Ingrid Marie
Lin, Ming
Chen, Xiaoye
Tan, Hang Khume
Soumyanarayanan, Anjan
Boothroyd, Chris
Keywords: Engineering::Materials
Issue Date: 2022
Source: Tan, H. R., Andersen, I. M., Lin, M., Chen, X., Tan, H. K., Soumyanarayanan, A. & Boothroyd, C. (2022). In-situ study of skyrmions at high resolution using differential phase contrast microscopy. Microscopy and Microanalysis, 28(S1), 842-844.
Journal: Microscopy and Microanalysis 
Abstract: Magnetic skyrmions are nanoscale topological spin structures that show great potential in future spintronic technology. In particular, skyrmions in multilayer systems open up the avenue to controlling and varying skyrmion properties for functional devices. Co/Pt-based multilayer systems have been shown to host magnetic skyrmions at room temperature, while incorporation of Ir and Fe further offers a materials platform with tunable magnetic properties [1]. In our previous studies on Ir/Fe/Co/Pt multilayers, we used Lorentz transmission electron microscopy (TEM) to characterize the chirality, formation mechanism, and evolution of room-temperature skyrmions [2]. This is the most direct imaging method for in-situ TEM studies of magnetic processes. However, as we work with multilayer films approaching the ultrathin (1 nm) limit, highly defocused Lorentz TEM images (Figure 1) prove limiting in both spatial resolution and magnetic sensitivity.
ISSN: 1431-9276
DOI: 10.1017/S1431927622003762
Schools: School of Materials Science and Engineering 
Organisations: Institute of Materials Research and Engineering, A*STAR
Research Centres: Facility for Analysis, Characterisation, Testing and Simulation 
Rights: © 2022 Microscopy Society of America. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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