Magneto-optical studies of magnetization reversal of an Au/Co/Au sandwich

Dynamic Hysteresis Loop of a Ferromagnetic Layer: Effect of the High Second Order of the Anisotropy Constant.

“…On the other hand the τ(H=0) values are weaker than those found in bibliography [9]. Since this last parameter describes the stability of the remanent magnetization, we see that these values are under estimated and not considered like absolute but relative because of the fact that the model used considers that the energy barrier is unique however it would not true in real layers.…”

“…6(3), 1215-1220 1216 (12 Oe/s) to fast regime (3750 Oe/s). An interpretation of the magnetization reversal dynamics using two theoretical models is proposed flowing previous works [9,15].…”

“…A lot of fundamental work have been devoted to the study of these processes in Au/Co/Au(111) sandwiches with perpendicular anisotropy for extended range of cobalt thickness [2,8,9]. It has shown that in sandwiches deposited in high vacuum chamber on several supports in accordance with standard techniques [10][11][12] the magnetization reversal is mainly controlled by domain motion initiated by a few micrometer size magnetic domain in the thickness range about 0.7 [13] nm where the magnetic anisotropy is relatively strong.…”