Figure 4
From: Coherent phonon control via electron-lattice interaction in ferromagnetic Co/Pt multilayers

(a) Time-resolved remanent magnetization for (6.3-Å Co/ 9.3-Å Pt)n samples with n = 5, n = 10 and n = 15 (circles) and their global fitting results (solid lines). (b) Fitting of coherent phonon frequency (as shown in Fig. 2(c)), based on function of , where γ is constant and d is total thickness of multilayer sample.