Dataset for "Vortex trapping and induced screening currents in superconducting moat arrays"
Dataset for the seven figures for "Vortex trapping and induced screening currents in superconducting moat arrays" in IoP Superconductor Science and Technology.
The primary data is a combination of low-temperature scanning Hall probe microscopy (SHPM) and magneto-optical imaging (MOI) undertaken at the University of Bath and University of Notre Dame, in addition to TDGL simulation data taken at the University of Antwerp. Additionally, there is data derived from the analysis of SHPM data, e.g. number of interstitial vortices and moat vortices. In addition, line scans and magnetisation loops have been taken through the SHPM scans and usage.
Cite this dataset as:
Leonard, O.,
Bending, S.,
2026.
Dataset for "Vortex trapping and induced screening currents in superconducting moat arrays".
Bath: University of Bath Research Data Archive.
Available from: https://doi.org/10.15125/BATH-01682.
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Data
Figure 1.zip
application/zip (698kB)
Creative Commons: Attribution 4.0
Optical image of the 200nm thin-film Nb moat array sample.
Figure 2.zip
application/zip (1MB)
Creative Commons: Attribution 4.0
Magneto-optical imaging of the Nb moat array sample for varying applied fields from zero-field cooled.
Figure 3.zip
application/zip (657kB)
Creative Commons: Attribution 4.0
Scanning Hall probe microscopy images (128 x 128 pixel scans); number of vortices calculated numerically in the moats as a function of applied field in Gauss; number of interstitial vortices as a function of applied field in Gauss; time-dependant Ginzburg-Landau simulation data for the number of interstitial vortices as a function of applied field in Oersted.
Figure 4.zip
application/zip (1MB)
Creative Commons: Attribution 4.0
Scanning Hall probe microscopy images (64 64 pixel scans) of a single vortex through a series of temperatures.
Figure 5.zip
application/zip (585kB)
Creative Commons: Attribution 4.0
Zero-field cooled MOI images, and a cycling routine under various applied fields.
Figure 6.zip
application/zip (1MB)
Creative Commons: Attribution 4.0
Scanning Hall probe microscopy images (128 x 128 pixel scans) from zero-field cooled taken through a series of applied fields dictated by the associated B-H loop; B-H loop taken above the white pole.
Figure 7.zip
application/zip (417kB)
Creative Commons: Attribution 4.0
Linescan of a scanning Hall probe image (128 x 128 pixel) going through the poles of the dipole pattern, in addtion to a model fit using a two-strip Biot fit; fit using the Brandt-Indenbom critical state model.
Contributors
Leonardo Cadorim
Data Collector
University of Antwerp
Milorad Milosevic
Project Manager
University of Antwerp
Tong Ren
Data Collector
Argonne National Laboratory
Vitalii Vlasko-Vlasov
Project Manager
University of Notre Dame
Samuel Pate
Data Collector
Northern Illinois University
Zhili Xiao
Researcher
Argonne National Laboratory
Ralu Divan
Researcher
Argonne National Laboratory
Valentine Novosad
Researcher
Argonne National Laboratory
University of Bath
Rights Holder
Documentation
Data collection method:
This dataset contains magnetisation, scanning Hall probe microscopy (SHPM), magneto-optical imaging (MOI), and time-dependant Ginzburg-Landau (TDGL) data, with measurements performed on sister samples of a 5um x 5um 200nm thick niobium thin film moat array sample, with Tc ~ 9.1 K. Magnetisation data was collected using a scanning Hall probe microscopy system at the University of Bath, at temperatures ranging from 5.0 to 10 K and magnetic fields ranging in magnitudes up to |80| Oe. The measurements were primarily taken in the form of magnetic hysteresis loops, in addition to 128 x 128 pixel SHPM magnetic scans. From this data, quantities such as interstitial vortex number, moat vortex number, and trapping window were derived. Line profiles were derived from these 2D scans. MOI data was collected using a classic system at the University of Notre Dame. Scan data was acquired in temperatures ranging from 5.0 to 10.0 K, and in magnetic fields ranging in magnitude up to |50| Oe. TDGL data was calculated at the University of Antwerp.
Technical details and requirements:
Data is in the form of .csv (comma separated values) with headers and units indicated. WSxM was used to process the SHPM images.
Additional information:
This data was produced by Oscar Leonard under Army Research Office (ARO) Award Number W911NF-24-1-0145. ARO, as the Federal awarding agency, reserves a royalty-free, nonexclusive and irrevocable right to reproduce, publish, or otherwise use this data for Federal purposes, and to authorize others to do so in accordance with 2 CFR 200.315(b).
Funders
United States Army Research Office
https://doi.org/10.13039/100000183
In-situ vortex manipulation and trapped flux removal in superconducting electronic devices
W911NF-24-1-0145
Publication details
Publication date: 21 September 2026
by: University of Bath
Version: 1
DOI: https://doi.org/10.15125/BATH-01682
URL for this record: https://researchdata.bath.ac.uk/1682
Related papers and books
Leonard, O., Ren, T., Vlasko-Vlasov, V., Cadorim, L. R., Milosevic, M. V., Pate, S., Xiao, Z. -L., Divan, R., Novosad, V., and Bending, S. J., 2026. Vortex trapping and induced screening currents in superconducting moat arrays. Superconductor Science and Technology. Available from: https://doi.org/10.1088/1361-6668/aeaa8b.
Contact information
Please contact the Research Data Service in the first instance for all matters concerning this item.
Contact person: Oscar Leonard
Faculty of Science
Physics
Research Centres & Institutes
Condensed Matter and Quantum Materials
