Observation of Magnetic Flux Generated Spontaneously During a Rapid Quench of Superconducting Films

A. Maniv, E. Polturak, G. Koren

We report observations of spontaneous formation of magnetic flux lines during a rapid quench of YBa${}_2$Cu${}_3$O${}_{7-\delta }$ films through T${}_c$. This effect is predicted according…