152 citations · 1.4k across the 53 of their papers we have counts for
4 papers · 1 filter
Magnetostrictive behaviour of thin superconducting disks
Tom H. Johansen, Daniel V. Shantsev
Flux-pinning-induced stress and strain distributions in a thin disk superconductor in a perpendicular magnetic field is analyzed. We calculate the body forces, solve the magneto-el…
Single vortices observed as they enter NbSe
A. A. F. Olsen, H. Hauglin, T. H. Johansen +2
We observe single vortices as they penetrate the edge of a superconductor using a high-sensitivity magneto-optical microscope. The vortices leap across a gap near the edge, a dista…
Mesoscopic flux jumps in MgB2 films visualized by magneto-optical imaging
A. V. Bobyl, D. V. Shantsev, Y. M. Galperin +4
We report on the first spatially resolved observation of mesoscopic flux jumps in superconducting films. Magneto-optical imaging was used to visualize the flux penetration in MgB2…
Direct Demonstration of the Anisotropic Origin of the Macroturbulent Instability in Type-II Superconductors
L. M. Fisher, A. Bobyl, T. H. Johansen +4
The physical nature of the macroturbulence in the vortex matter in YBCO superconductors is verified by means of magnetooptic study of the instability in a single crystal prepared s…