Illustration: Courtesy of V. V. Moshchalkov

Figure 1: Schematic of the spatial distribution of the superconducting order parameter $|ψ(x)|$ and the field profile $B(x)$ for two neighboring fluxons in (top) type-I, (middle) type-II, and (bottom) type-1.5 superconductors. The bottom sketch in each panel shows $|ψ(x)|$ in a color plot with darker regions indicating the smaller order parameter, and the stray field emanating from the sample surface.