Fig. 6
From: Imaging of super-fast dynamics and flow instabilities of superconducting vortices
Different morphologies of ultra-fast vortices at velocities significantly higher than in our experiment. a,b A snapshot a and time-averaged Cooper-pair density Δ 2(x, y) b as in Fig. 5, but for twice higher applied field and twice the current. Three vortex phases are found with distinctly different core structure, level of quasiparticle tailgating, velocities and resulting kinematic trajectories (see text and Supplementary Movies 7 and 8), namely the extremely fast Abrikosov-Josephson vortices (marked by green dot), the ultrafast slipstreamed vortices (black dot), and conventional Abrikosov moving vortices (red dot). c Spatial profiles of vortex velocities v(x) (scaled to v GL = ξ/τ GL, see Methods) for the three main vortex phases, and for one detected branch of vortices going through an in-motion transition (dynamic transition from slipstreamed vortices to conventional Abrikosov vortices, identified by a blue dot in a). The scale bar in a is 20 ξ
