Fig. 1: SDW domain switching.

a schematic diagram of the k-domains in the sample along with their amplitude modulated magnetic structures. The orange and blue arrows indicate the direction of the static magnetic moments (μ) pointing along the [001] direction and modulated with two orthogonal ordering vectors k⁺ and k⁻. The static moments are located on the rare earth site, indicated by the orange balls. Blue and green balls indicate the In and Co ions. A high resolution version of the spin structures is available in the Supplementary Fig. 1. b Shows the k⁺ and k⁻ domains. As the field is rotated in the ab-plane across the [100] crystallographic direction, the SDW domains switch, favoring the domain whose modulation is most perpendicular to the field direction. c The scans display the diffracted neutron intensity in counts per 16 minutes along (q, ± q, 0.5) in (r.l.u.). d Temperature dependences of the magnetic Bragg peak intensities of the two magnetic domains measured at μ₀H = 1 T in zero field cooled (ZFC) and field cooled (FC) conditions. The green data points (BG) indicate the background intensity obtained in the paramagnetic state.