Current-induced self-organisation of mixed superconducting states

Abstract

Small-angle neutron scattering is used in combination with transport measurements to investigate the current-induced effects on the morphology of the intermediate mixed state domains in the intertype superconductor niobium. We report the robust self-organisation of the vortex lattice domains to elongated parallel stripes perpendicular to the applied current in a steady-state. The experimental results for the formation of the superstructure are supported by theoretical calculations, which highlight important details of the vortex matter evolution. The investigation demonstrates a mechanism of a spontaneous pattern formation that is closely related to the universal physics governing the intermediate mixed state in low-$\kappa$ superconductors.

15 pages, 9 figures

References in corpus (7)

• Imaging of super-fast dynamics and flow instabilities of superconducting vortices
• Ultra-fast vortex motion in dirty Nb-C superconductor with a close-to-perfect edge barrier
• Morphology of the Superconducting Vortex Lattice in Ultra-Pure Niobium
• Current-driven transformations of the intermediate state patterns in type-I superconductors
• Interaction between moving Abrikosov vortices in type-II superconductors
• Type-1.5 superconductivity in muliband and other multicomponent systems
• Pinning effects in a two-dimensional cluster glass

Cited by in corpus (1)

• The Type-II/Type-I Crossover in Dirty Ferromagnetic Superconductors