Fig. 4: Anomalous transport in chlorine doped Co3Sn2S2.
From: Enhanced Weyl semimetal signature in Co3Sn2S2 Kagome ferromagnet by chlorine doping
a Field dependent anomalous Hall resistivities \({\rho }_{{yx}}^{A}\) of intrinsic Co3Sn2S2. b \({\rho }_{{yx}}^{A}\) of the Cl-doped Co3Sn2S2. The two crystals have identical behavior with a clear hysteresis loop near zero field. c Temperature dependence of the \({\rho }_{{yx}}^{A}\) of both crystals. After doping, the \({\rho }_{{yx}}^{A}\) becomes significantly lower below 60 K. Above 100 K, the two crystals show comparable \({\rho }_{{yx}}^{A}\). d Temperature dependent anomalous Hall conductivities (AHCs) of both crystals. At 2 K, the two crystals exhibit comparable AHC as a consequence of a comparable nodal ring. The AHC of the doped crystal shows a rapid increase with temperature, reflecting a greater contribution from the Weyl points. e Fitting of the AHC σxy vs σxx2. The intersection of the y-axis is taken to represent the intrinsic contribution. The separation of intrinsic and extrinsic contributions is illustrated in f. A negative skew scattering contribution has been resolved.
