3 papers
cond-mat.supr-con2024
BKT phase transition in nanoporous films of superconducting NbN
A. Verma, R. Vedin, J. Jesudasan +3
We present a study of the Berezinskii-Kosterlitz-Thouless (BKT) transition in mildly disordered NbN nanoporous (NP) films. The measured superfluid stiffness, Js, is found to be muc…
cond-mat.supr-con2024
Switching current distributions in superconducting nanostrips
Robert Vedin, Jack Lidmar
We study switching current distributions in superconducting nanostrips using theoretical models and numerical simulations. Switching current distributions are commonly measured in…
cond-mat.supr-con2021
Current crowding in nanoscale superconductors within the Ginzburg-Landau model
Mattias Jönsson, Robert Vedin, Samuel Gyger +5
The current density in a superconductor with turnarounds or constrictions is non-uniform due to a geometrical current crowding effect. This effect reduces the critical current in t…