Vortex avalanches with robust statistics observed in superconducting niobium
Vortex avalanches with robust statistics observed in superconducting niobium
In 1993 Tang proposed [1] that vortex avalanches should produce a self organized critical state in superconductors, but conclusive evidence for this has heretofore been lacking. In the present paper, we report extensive micro-Hall probe data from the vortex dynamics in superconducting niobium, where a broad distribution of avalanche sizes …