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    Extrinsic anomalous Hall effect in four cerium-based heavy fermion ferromagnets

    Longfei Li1,2,*, Jiawei Li1, Jia-Xin Yin2,3, Yi-feng Yang4,5, and Shuang Jia1,6,7,†

    • *Contact author: lilf@sustech.edu.cn
    • †Contact author: gwljiashuang@pku.edu.cn

    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 (TC) 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 100Ω−1cm−1 to 1.5×104Ω−1cm−1 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 TC. We propose that the partially screened f moments serve as scattering centers in the electrical transport of these four compounds.

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