Figure 5
From: Dynamical behaviour of ultrathin [CoFeB (tCoFeB)/Pd] films with perpendicular magnetic anisotropy
Apparent damping αapp as a function of the external applied magnetic field for CoFeB layer thickness of tCoFeB = 4 (a) and 3 Å (b), extracted from VNA-FMR spectra (blavk open circle) and pump-probe measurements (black filled circle). The red (blue) solid lines are the average of αapp determined from the VNA-FMR spectra (pump-probe measurements) for large applied fields and correspond to the αeff.
