Micromagnetics of laminated Permalloy films

Crossed anisotropy magnetic cores for integrated inductors

“…The domain pattern displays no closure domains. Edge curling walls [13] are formed along the core edges. The net flux is guided in the ring.…”

High frequency characteristics of NiO/(FeCo/NiO)10 multilayers with exchange anisotropy

“…To overcome this limitation, a combination of antiferromagnetic/ferromagnetic (AF/FM) exchange coupled films is proposed [1,2], which can be used to raise the effective anisotropy field of high saturation magnetization materials [3,4]. These kinds of multilayer films [5][6][7][8][9] have shown enhanced effective anisotropy fields, which results in enhanced FMR frequency, due to exchange coupling between the AF and FM layers, and are promising candidates for RF and microwave applications [1,8,[10][11][12]. However it is known that a decrease of FMR frequency and effective anisotropy field are obviously observed in exchange coupled films as the thickness of the FM layer increases [13][14][15][16], which is undesired for real applications.…”

Dynamic response of NiFe bilayered strip thin films

“…However, magnetization of the triangular domains responded to the driving field, while negligible change in magnetization occurred for the triangular domain of a corresponding single-layered f i l m . At the Point P (W=5 pm) (W=2 pm) magnetization responded to the driving out the strip width and no wall could be observed, imp domain behavior in the dynamics.retically predicted by Slonczewski et al[4], and was exp tauy inspected [ 11. According to the theory, the closure state should be unstable regardless of the strip width.…”