Hauptseite > Publikationsdatenbank > Off-axis electron holography of Néel-type skyrmions in multilayers of heavy metals and ferromagnets > print

001     885907
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024 7 _ |a 10.1016/j.ultramic.2020.113155
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100 1 _ |a Denneulin, T.
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245 _ _ |a Off-axis electron holography of Néel-type skyrmions in multilayers of heavy metals and ferromagnets
260 _ _ |a Amsterdam
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520 _ _ |a Magnetic skyrmions are complex swirling spin structures that are of interest for applications in energy-efficient memories and logic technologies. Multilayers of heavy metals and ferromagnets have been shown to host magnetic skyrmions at room temperature. Lorentz transmission electron microscopy is often used to study magnetic domain structures in multilayer samples using mainly Fresnel defocus imaging. Here, off-axis electron holography is used to obtain in-focus electron optical phase images of Néel-type domains and skyrmions in an Ir/Fe/Co/Pt multilayer sample. The preparation of the sample, reconstruction of the holograms and influence of sample tilt angle on the signal-to-noise ratio in the phase images are discussed. A good agreement is found between images of individual skyrmions that are stabilized using an external magnetic field and simulated images based on theoretical models of Néel-type skyrmions.
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536 _ _ |a 3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538)
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536 _ _ |a DARPA, Phase 2 - Defense Advanced Research Projects Agency Manipulation of magnetic skyrmions for logicin- memory applications (Z1422.01.18)
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700 1 _ |a Lin, M.
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700 1 _ |a Tan, H. K.
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700 1 _ |a Kovacs, Andras
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700 1 _ |a Blügel, S.
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700 1 _ |a Dunin-Borkowski, Rafal
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