Fig. 2

Large positive magnetoresistance in CeSb for the magnetic field applied perpendicular to the current. a Temperature dependence of the electrical resistivity of CeSb in various applied fields with B ⊥ I. At low temperatures, the field leads to a significant enhancement of the resistivity indicating a large positive magnetoresistance. b Upper panel: Magnetoresistance as a function of applied field with B ⊥ I at various temperatures, demonstrating that the positive magnetoresistance becomes much more significant below 10 K. The arrows point to B _FM, the field at which there is a transition from an AFF to the FM state with increasing field. b Lower panel: Magnetoresistance as a function of applied field for different θ, where θ is the angle between the applied field and the current. As θ is reduced from 90°, the magnetoresistance decreases and becomes negative at high field near 0°