Research Data Leeds Repository

Dataset associated with 'Pinning and hysteresis in the field dependent diameter evolution of skyrmions in Pt/Co/Ir superlattice stacks'

Zeissler, Katharina and Mruczkiewicz, M and Finizio, Simone and Raabe, Joerg and Shepley, Philippa and Sadovnikov, Alexandr and Nikitov, SA and Fallon, K and McFadzean, S and McVitie, Stephen and Moore, Thomas and Burnell, Gavin and Marrows, CH (2017) Dataset associated with 'Pinning and hysteresis in the field dependent diameter evolution of skyrmions in Pt/Co/Ir superlattice stacks'. University of Leeds. [Dataset] https://doi.org/10.5518/261

Dataset description

We have imaged Néel skyrmion bubbles in perpendicularly magnetised polycrystalline multilayers patterned into 1 μm diameter dots, using scanning transmission x-ray microscopy. The skyrmion bubbles can be nucleated by the application of an external magnetic field and are stable at zero field with a diameter of 260 nm. Applying an out of plane field that opposes the magnetisation of the skyrmion bubble core moment applies pressure to the bubble and gradually compresses it to a diameter of approximately 100 nm. On removing the field the skyrmion bubble returns to its original diameter via a hysteretic pathway where most of the expansion occurs in a single abrupt step. This contradicts analytical models of homogeneous materials in which the skyrmion compression and expansion are reversible. Micromagnetic simulations incorporating disorder can explain this behaviour using an effective thickness modulation between 10 nm grain

Keywords:	Physics, Applied Physics, Solid State Physics
Subjects:	F000 - Physical sciences > F300 - Physics F000 - Physical sciences > F300 - Physics > F310 - Applied physics F000 - Physical sciences > F300 - Physics > F320 - Chemical physics > F321 - Solid-state physics
Divisions:	Faculty of Engineering and Physical Sciences > School of Physics and Astronomy
Related resources:	Location Type https://doi.org/10.1038/s41598-017-15262-3 Publication http://eprints.whiterose.ac.uk/122811/ Publication
License:	Creative Commons Attribution 4.0 International (CC BY 4.0)
Date deposited:	14 Feb 2018 12:35
URI:	http://archive.researchdata.leeds.ac.uk/id/eprint/312
Additional details Additional details Creators: Creators ORCID Other ID Email Primary affiliation Primary affiliation ID Primary affiliation ID type Secondary affiliation Secondary affiliation ID Secondary affiliation ID type Zeissler, Katharina https://orcid.org/0000-0002-2698-3493 University of Leeds https://doi.org/10.13039/501100000777 crossref Mruczkiewicz, M Slovak Academy of Sciences Finizio, Simone https://orcid.org/0000-0002-1792-0626 Paul Scherrer Institute Raabe, Joerg https://orcid.org/0000-0002-2071-6896 Paul Scherrer Institut Shepley, Philippa https://orcid.org/0000-0003-1240-593X University of Leeds https://doi.org/10.13039/501100000777 crossref Sadovnikov, Alexandr https://orcid.org/0000-0002-8847-2621 Russian Academy of Sciences https://doi.org/10.13039/501100002674 crossref Nikitov, SA Russian Academy of Sciences https://doi.org/10.13039/501100002674 crossref Fallon, K University of Glasgow https://doi.org/10.13039/501100000853 crossref McFadzean, S University of Glasgow https://doi.org/10.13039/501100000853 crossref McVitie, Stephen https://orcid.org/0000-0003-4511-6413 University of Glasgow https://doi.org/10.13039/501100000853 crossref Moore, Thomas https://orcid.org/0000-0001-6443-2556 University of Leeds https://doi.org/10.13039/501100000777 crossref Burnell, Gavin https://orcid.org/0000-0002-9486-0639 University of Leeds https://doi.org/10.13039/501100000777 crossref Marrows, CH https://orcid.org/0000-0003-4812-6393 University of Leeds https://doi.org/10.13039/501100000777 crossref Type of data: Dataset Research funders: EU, EPSRC, EU, Slovak Academy of Sciences, Russian Science Foundation, Grant of the President of RF Grant numbers: MAGicSky No. FET-Open-665095.103, EP/M000923/1, FP7 SASPRO 609427, 1244/02/01, No. 14-19-00760, MK-5837.2016.9 Publication date: 2017 Resource language: English Metadata language: English Publisher: University of Leeds Contact Email Address: K.Zeissler@leeds.ac.uk Last Modified: 14 Feb 2018 23:45

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