Fig. 2: Domain pattern obtained by sending two successive pulses: a first one and then, after moving the laser at a distance smaller than the spot size, a second one.
From: In-plane reorientation induced single laser pulse magnetization reversal
The two spots are then overlapping. The experiments were done on a [Tb(1.31 nm)]/Fe(1.89 nm)]4 multilayer. The color scale corresponds to magnetization pointing out of plane: M+ (respectively M−) along the perpendicular to the film plane, along +z (resp. −z) in red (resp. in blue). The sample is initially saturated along the M+ direction. The laser pulse has a fluence of 5.2 mJ/cm2 and a duration of 50 fs.
