7 papers
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,…
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…
Vortex frequency locking and Shapiro steps in superconductor open nanotubes
Igor Bogush, Vladimir M. Fomin, Oleksandr V. Dobrovolskiy
The movement of magnetic flux quanta (Abrikosov vortices) in superconductors leads to dissipation and is influenced by various ordering effects arising from vortex-vortex, vortex-d…
Conformal approach to physics simulations for thin curved 3D membranes
Igor Bogush, Vladimir M. Fomin, Oleksandr V. Dobrovolskiy
Three-dimensional nanoarchitectures are widely used across various areas of physics, including spintronics, photonics, and superconductivity. In this regard, thin curved 3D membran…
Vortex ratchet effect in superconductor open nanotubes and nanopetals
Igor Bogush, Rodrigo H. de Bragança, Vladimir M. Fomin +1
Advancements in the fabrication of superconducting 3D nanostructures and the creation of artificial pinning sites pave the way to novel applications and enhancement of nanosensors,…
Steering of vortices by magnetic-field tilting in superconductor nanotubes
Igor Bogush, Oleksandr V. Dobrovolskiy, Vladimir M. Fomin
In planar superconductor thin films, the places of nucleation and arrangements of moving vortices are determined by structural defects. However, various applications of superconduc…
Microwave generation and vortex jets in superconductor nanotubes
Igor Bogush, Oleksandr V. Dobrovolskiy, Vladimir M. Fomin
The dynamics of magnetic flux quanta (Abrikosov vortices) determine the resistive response of superconductors. In pinning-free planar thin films, the penetration and motion of vort…