[EN] Current driven domain wall motion in curved Heavy Metal/Ferrimagnetic/Oxide multilayer
strips is investigated using systematic micromagnetic simulations which account for spinorbit
coupling phenomena. Domain wall velocity and characteristic relaxation times are
studied as functions of the geometry, curvature and width of the strip, at and out of the
angular momentum compensation. Results show that domain walls can propagate faster
and without a significant distortion in such strips in contrast to their ferromagnetic
counterparts. Using an artificial system based on a straight strip with an equivalent
current density distribution, we can discern its influence on the wall terminal velocity,
as part of a more general geometrical influence due to the curved shape. Curved and
narrow ferrimagnetic strips are promising candidates for designing high speed and fast
response spintronic circuitry based on current-driven domain wall motion.
