Magnetic anisotropy and spin reorientation in Co/Pt multilayers: Influence of preparation

Tuning of the nucleation field in nanowires with perpendicular magnetic anisotropy

“…The first reason is the gradual reduction of the thickness of the Co layer as below t Co ≲ 0.5 nm the first order anisotropy constant K 1,eff decreases with decreasing t Co . 41 This behavior is in accordance with other studies, see, e.g., Refs. 42,43.…”

Perpendicular magnetic anisotropy of Co\Pt bilayers on ALD HfO2

“…Below t c , the K eff saturates at 0.25 6 0.03 mJ/m 2 , likely due to the decrease of interfacial anisotropy ascribed to the degradation of the interfaces when the Co thickness decreases. 39,40 This is comparable to values reported in the literature for similar Co-Pt thin film stacks, 3,4 which are on the order of 0.3-0.32 mJ/m 2 . An increased annealing temperature has been reported to decrease the K eff .…”

Employing soft x-ray resonant magnetic scattering to study domain sizes and anisotropy in Co/Pd multilayers

“…One possible explanation is that the out-of-plane component of the magnetization is reduced. Such behavior can be expected within the spin-reorientation transition when magnetization canting is effective [21,30,31,[47][48][49]. In addition, the fit via the model reveals that the shape parameter has to be changed from k = 4 to 3.3 [ Fig.…”

“…First, seed layers of 4-nm Pt (plasma-based ion-beam sputtering) and 3.5-nm Pd (dc magnetron sputtered) are grown. On the seed layer, the Co/Pd multilayer stack is deposited (dc magnetron sputtered) and capped by a 3.5-nm Pd layer [29][30][31] [ Fig. 1(b)].…”