Fig. 2: Temporal change of the degree of demagnetization (Ddemag) and temperatures.
From: Ultrafast dynamics of exchange stiffness in Co/Pt multilayer
For the case of wavelength of pump pulse λpump = 800 nm, a Time-resolved magneto-optical Kerr effect (TR-MOKE) data measured for 1.7 ≤ FP (pump fluence) ≤ 16.5 mJ cm−2; inset: hysteresis loops with probe-beam modulation measured at delay time t = -2 ps (dotted line) and 0.3 ps (solid line) at FP = 13.2 mJ cm−2. Spin temperature Ts (red), electron temperature Te (black), and lattice temperature Tl (blue) during the initial 30 ps for FP = b 3 and c 9.9 mJ cm−2. For the case of λpump = 400 nm, d TR-MOKE data measured for 4.1 ≤ FP ≤ 16.3 mJ cm−2. Ts (red), Te (black), and Tl (blue) during the initial 30 ps for FP = e 4.1, f 16.3 mJ cm−2.
