Fig. 2: Comparison between theory and experiment for the ultrafast loss of magnetization M of an iron film upon laser excitation at t = 0.

Fig. 2: Comparison between theory and experiment for the ultrafast loss of magnetization M of an iron film upon laser excitation at t = 0. The full curves present the ultrafast demagnetization computed with the developed theory and the symbols give the experimental data for two different laser intensities.