Extended Data Fig. 2: Magneto-transport properties with H // c-axis.
From: Emergent electromagnetic induction in a helical-spin magnet
a–d, Magnetoresistivity for a thin-plate sample of Gd3Ru4Al12 at various temperatures. We determined the TC phase from the dip structure represented by the blue shading. e–h, Magnetic-field derivative of the magnetoresistivity at various temperatures. We ascribe the kinks to the fan-to-ferromagnetic transition (green triangles) and the phase boundaries of the V phase (light blue triangles). The kinks are also observed at the phase boundaries of the skyrmion phase (red squares). i–l, Magnetic-field dependence of Hall conductivity (σxy) at various temperatures. The red-shaded regions represent the contribution of the topological Hall effect due to the formation of skyrmions.
