Dendritic instability in thin superconducting films

 The research deals with the thermomagnetic dendritic flux-instability and its implication on superconducting practical devices. By exploiting a unique ultra-fast magneto-optical imaging system (up to 70,000 frames/sec) and its ultra-fast field sweep rates (up tp 3 kT/s), we are able to explore the conditions for flux stability in superconducting films.

                Dendritic flux structure in superconducting YBCO film acquired by our fast
magneto-optical system