Figure 4: Magnetization process of conical helices for the Dzyaloshinskii model.
From: The quantum nature of skyrmions and half-skyrmions in Cu2OSeO3

(a) For fields in the easy axis direction [100], the transition to the field-enforced plateau state is discontinuous at a field Hp(100). (b) For fields in the hard axis direction [111], a continuous transition takes place at Hp(111).