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cond-mat.supr-con2026
Trapping magnetic flux quanta in superconducting 3D caps
Igor Bogush, Vladimir M. Fomin, Oleksandr Dobrovolskiy
Magnetic flux quanta in type-II superconductors are topological excitations of the order parameter whose sensitivity to the local environment makes them probes of current density,…
cond-mat.supr-con2026
Geometry-induced current decrowding in superconducting 3D constrictions
Igor Bogush, Oleksandr Dobrovolskiy
Current crowding is a ubiquitous limitation in nanoscale devices, where confinement and sharp features distort current flow, generating localized current-density hotspots and prema…