In superconductors, the motion of vortices introduces unwanted dissipation that is disruptive
to applications. Fortunately, material defects can immobilize vortices, acting as vortex …

A depinning transition is observed in a variety of contexts when a certain threshold force
must be applied to drive a system out of an immobile state. A well-studied example is the …

Superconductors can support large dissipation-free electrical currents only if vortex lines are
effectively immobilized by material defects. Macroscopic critical currents depend on …

The relaxation phenomena of a FeSe 0.5 Te 0.5 single crystal sample, with twinned
morphology, exhibiting a second magnetization peak effect have been analyzed by means …

The evolution of the vortex glass (VG) phase transition and vortex creep with decreasing film
thickness is studied in ultrathin, polycrystalline niobium films with thickness in the range 7.4 …

Dissipation-free current transport in type II superconductors requires vortices, the topological
defects of the superfluid, to be pinned by defects in the underlying material. The pinning …

Pinning and creep determine the current-voltage characteristics of a type-II superconductor
and thereby its potential for technological applications. The recent development of strong …

Applying the strong pinning formalism to the mixed state of a type-II superconductor, we
study the effect of thermal fluctuations (or creep) on the penetration of an ac magnetic field …

Type II superconductors exhibit a fascinating phenomenology that is determined by the
dynamical properties of the vortex matter hosted by the material. A crucial element in this …

The evolution of the vortex glass (VG) phase transition and vortex creep with decreasing film
thickness is studied in ultrathin, polycrystalline niobium films, with thickness in the range 7.4 …