Carrier scattering by intercalated Fe spin ordering in 2H-NbS2 van der Waals gap

We have measured the electrical resistivity and the Hall coefficient of the metallic intercalation compounds Fe x NbS 2 (0.159 ≤ x ≤ 0.325). The magnetic scattering by the spin fluctuation of Fe superstructure was observed in the electrical resistivity. The anomalous Hall coefficient due to the asymmetric carrier scattering changes its sign from positive to negative at the critical content x=1/4. These results indicate that the electronic properties of the system strongly depend on the spin ordering of the Fe ions in the van der Waals gap.