Field Dependence of the Vortex Core Size in a Multiband Superconductor
Field Dependence of the Vortex Core Size in a Multiband Superconductor
The magnetic field dependence of the vortex core size in the multi-band superconductor NbSe2 has been determined from muon spin rotation measurements. The spatially extended nature of the quasiparticle core states associated with the smaller gap leads to a rapid field-induced shrinkage of the core size at low fields, while …