Fig. 3. Scattering at the magnetic phase boundaries.

(A) A schematic of measurement configuration. The field angle θ is defined from the surface normal [111] direction. (B) A top-view photograph of the measured Hall bar device structure with a channel width of 100 μm. (C) The top denotes the corresponding crystallographic directions and expected magnetic structures of the Dy 4f moments under high-field limit: 2/2, 3/1, and 1/3 represent “2-in/2-out,” “3-in/1-out,” and “1-in/3-out” configurations, respectively. The bottom shows the ADMR [ADMR ≡ ρ_xx(θ)/ρ_xx(0°) – 1] for several temperatures at 9 T. (D) Schematic spin configurations while rotating magnetic field. Blue arrows represent flopped spins across the boundary in spin structures (black lines). Four distinct types of spin in a pair of tetrahedra are denoted as “Dy1,” “Dy2,” “Dy3,” and “Dy4.”