Fig. 1
From: Chiral-induced switching of antiferromagnet spins in a confined nanowire

Schematics for antiferromagnetic spiral structure in Néel space. In a confined one-dimensional geometry, this spiral structure is formed by Dzyaloshinskii-Moriya (DM) interaction. When electric field is applied between two electrodes and DM interaction is induced, the DM vector between neighboring spins takes the form of Dij ∝ \(\widehat {\bf{x}}\)×eij, where eij is the unit vector linking neighbor spins i and j and therefore, Dij is parallel to the y axis. Here, spin–orbit torque with polarization along the y axis is applied to perturb the antiferromagnets