Figure 3
From: Controlling stable Bloch points with electric currents

Movement of Bloch points with applied spin current through uniform nanostrips. (a,b) Movement of a single Bloch point with current density \(J=0.7\times 10^{12}\,{\text {A/m}}^{2}\). The Bloch point is initialised near the left sample edge (a). When applying current, the Bloch point moves in \(+x\) direction until it reaches the right sample edge (b). (c) Movement of two Bloch points of opposite type. (d) Speed of a single Bloch point depending on the current strength. A linear speed increase can be observed above a certain depinning threshold.