Extrinsic anomalous Hall effect in four cerium-based heavy fermion ferromagnets
Phys. Rev. B 112, 165142 – Published 27 October, 2025
DOI: https://doi.org/10.1103/jl69-mpvr
Abstract
We investigate the anomalous Hall effect (AHE) in four ferromagnetic (FM) cerium-based heavy-fermion (HF) compounds. These ferromagnets are distinguished by relatively high Curie temperatures () and large residual resistivity ratios, which allowed us to disentangle the mechanisms of the AHE. Our results reveal a predominant skew-scattering contribution to the AHE within the FM region of all four compounds, with the anomalous Hall conductivity ranging from to at 2 K. Additionally, skew-scattering AHE also plays a significant role in the paramagnetic state, resulting in a distinct magnetic field dependence of the Hall resistivity when the temperatures are near the . We propose that the partially screened moments serve as scattering centers in the electrical transport of these four compounds.