Real-space imaging of confined magnetic skyrmion tubes
| Autor: | Hans Fangohr, Angus Laurenson, Nick Träger, J. A. T. Verezhak, Joachim Gräfe, Murray Wilson, R. Fan, Markus Weigand, Horia Popescu, A. C. Twitchett-Harrison, James Loudon, P. Steadman, Feodor Y. Ogrin, Geetha Balakrishnan, Peter D. Hatton, Ondrej Hovorka, Gisela Schütz, Felix Groß, M. T. Birch, S. H. Moody, L. A. Turnbull, David Cortés-Ortuño, Nicholas Bukin |
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| Přispěvatelé: | Birch, M T [0000-0001-9320-8561], Cortés-Ortuño, D [0000-0003-3799-3141], Groß, F [0000-0002-2412-285X], Laurenson, A [0000-0003-1947-5797], Weigand, M [0000-0002-0325-2268], Balakrishnan, G [0000-0002-5890-1149], Fangohr, H [0000-0001-5494-7193], Gräfe, J [0000-0002-4597-5923], Hatton, P D [0000-0002-7651-3393], Apollo - University of Cambridge Repository, Birch, MT [0000-0001-9320-8561], Hatton, PD [0000-0002-7651-3393], Birch, M. T. [0000-0001-9320-8561], Cortés-Ortuño, D. [0000-0003-3799-3141], Groß, F. [0000-0002-2412-285X], Laurenson, A. [0000-0003-1947-5797], Weigand, M. [0000-0002-0325-2268], Balakrishnan, G. [0000-0002-5890-1149], Fangohr, H. [0000-0001-5494-7193], Gräfe, J. [0000-0002-4597-5923], Hatton, P. D. [0000-0002-7651-3393] |
| Jazyk: | angličtina |
| Předmět: |
Science
TK TN General Physics and Astronomy FOS: Physical sciences Large scale facilities for research with photons neutrons and ions 02 engineering and technology Magnetic skyrmion Space (mathematics) 01 natural sciences General Biochemistry Genetics and Molecular Biology Topological defects Condensed Matter - Strongly Correlated Electrons 639/766/119/2792/4129 Magnetic properties and materials Metastability 0103 physical sciences 010306 general physics lcsh:Science QC Spin-½ Physics Multidisciplinary Condensed matter physics Spintronics Strongly Correlated Electrons (cond-mat.str-el) Texture (cosmology) Skyrmion article General Chemistry 021001 nanoscience & nanotechnology Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Lamella (surface anatomy) lcsh:Q cond-mat.str-el 0210 nano-technology 639/766/119/997 |
| Zdroj: | Nature communications, 2020, Vol.11, pp.1726 [Peer Reviewed Journal] Nature Communications Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020) |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-020-15474-8 |
| Popis: | Magnetic skyrmions are topologically nontrivial particles with a potential application as information elements in future spintronic device architectures. While they are commonly portrayed as two dimensional objects, in reality magnetic skyrmions are thought to exist as elongated, tube-like objects extending through the thickness of the host material. The study of this skyrmion tube state (SkT) is vital for furthering the understanding of skyrmion formation and dynamics for future applications. However, direct experimental imaging of skyrmion tubes has yet to be reported. Here, we demonstrate the real-space observation of skyrmion tubes in a lamella of FeGe using resonant magnetic x-ray imaging and comparative micromagnetic simulations, confirming their extended structure. The formation of these structures at the edge of the sample highlights the importance of confinement and edge effects in the stabilisation of the SkT state, opening the door to further investigation into this unexplored dimension of the skyrmion spin texture. Magnetic skyrmions are thought to possess a tube-like structure in three dimensions, but this has not been directly observed in experiment. Here, Birch et al. report real-space imaging of skyrmion tubes in a lamella of FeGe. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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