Figure 1

Illustration of DM vector for different tilt patterns.

Schematics of the DM vector correspond to the case of tilting axis along (a) [100], (b) [010] and (c) [001]. denotes the displacement of the oxygen ion and is a vector pointing from FM atom to AFM atom. Sketches of the G-AFM/FM interface are given for (d) inphase and (e) antiphase tilting about [100] (a axis), i.e., a⁺ and a⁻ respectively, with the sign of shown in the right simplified diagram for the whole interface. The direction of external magnetic field along [010] is marked with an arrow in the figure.