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We experimentally investigate the current-induced magnetization reversal inPt/[Co/Ni]$_3$/Al multilayers combining the anomalous Hall effect andmagneto-optical Kerr effect techniques in crossbar geometry. The magnetizationreversal occurs through nucleation and propagation of a domain of oppositepolarity for a current density of the order of 0.3 TA/m$^2$. In theseexperiments we demonstrate a full control of each stage: i)the {\O}rsted fieldcontrols the domain nucleation and ii) domain-wall propagation occurs by spintorque from the Pt spin Hall effect. This scenario requires an in-planemagnetic field to tune the domain wall center orientation along the current forefficient domain wall propagation. Indeed, as nucleated, domain walls arechiral and N\'eel like due to the interfacial Dzyaloshinskii-Moriyainteraction.

Perpendicular magnetization reversal in Pt/[Co/Ni]$_3$/Al multilayers via the Spin Hall Effect of Pt