Andreas Glatz

TL;DR: It is shown by experiments and computational modeling that concentrated magnetic rollers self-organize into multivortex states in an unconfined environment and that the neighboring vortices more likely occur with the opposite sense of rotation.

TL;DR: In this article, the effect of pinning on the vortex dynamics in superconductors is studied and the critical current density for various geometries of the pinning centers and the influence of pattern distortion on the magnetic-field-dependent critical current is analyzed.

TL;DR: In this paper, the authors explored the case of vortex trapping by randomly distributed spherical inclusions using large-scale simulations of the time-dependent Ginzburg-Landau equations and found that for a small density of particles having diameters of two coherence lengths, the vortex lattice preserves its structure and the critical current $j_c$ decays with the magnetic field following a power-law.

TL;DR: The model reproduces most of the observed phenomenology, including spontaneous formation of magnetic snakelike structures, generation of large-scale vortex flows, complex ferromagnetic-antiferromagnetic ordering of the snake, and self-propulsion of bead-snake hybrids.