Figure 3

Magnetic scattering as a function of delay for capped (blue symbols) and uncapped (red symbols) samples at different pump fluences on a (a) long and (b) short timescale and (c) normalized to the maximum demagnetization. The solid lines are the best fit obtained for each curve. The demagnetization of the capped magnetic film is delayed compared to the uncapped film and also appears to be slower. The shifted curve of the capped film (light blue squares) clearly demonstrates these two points. It also shows that the partial recovery of this curve is similar to the one of the uncapped sample when weakly pumped.