Fig. 5: MFM using a magnet-tipped NW at the surface of Cu2OSeO3.

a–d Images of Δf at T = 5 K under indicated magnetic fields applied along \(\left[001\right]\). e Inset of (d) showing the helix modulation.

a–d Images of Δf at T = 5 K under indicated magnetic fields applied along \(\left[001\right]\). e Inset of (d) showing the helix modulation.