Figure 3 | Scientific Reports

Figure 3

From: Synthetic ferrimagnet nanowires with very low critical current density for coupled domain wall motion

Figure 3

Nonadiabatic driving of anisotropically coupled DWs in a SyF nanowire. (a) Nonadiabatic driving pushes spins out of the wire plane in the direction where the perpendicular interlayer coupling is ferromagnetic. The angles of the spins with respect to the wire plane are denoted ϕ i , i = 1, 2, and the positions of the walls in the 1-D model are Z i , i = 1, 2. (b) DW velocity in the 1-D model as a function of in-plane interlayer coupling \({{\rm{\Delta }}}_{\parallel }=-\,\mathrm{(1}/\mathrm{4)}{{\rm{\Delta }}}_{\perp }\) and driving current density, J, in the wire. The red dashed line indicates the threshold current for the DW motion. Walker breakdown occurs in the triangular region in the center.

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