Dendritic flux avalanches

Type-II thin-film superconductors often exhibit magnetic instabilities in the form of dendritic flux avalanches, where abrupt bursts of magnetic flux invade the superconductor in narrow regions, forming dendritic structures. Exploiting the unique fast MOI system in our lab, which allows the measurements of dendritic avalanches generated by ultra-fast ramping fields  , we showed that as the ramping rate increases, avalanches appear at higher temperatures and under wider ranges of applied magnetic fields, potentially inducing permanent damages to the film. It is, therefore, essential to understand the phenomenon of dendritic avalanches under fast ramping fields and to explore possible ways of suppressing these instabilities.