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Large intrinsic anomalous Hall effect in the hexagonal ferromagnet NdCrGe3

Xiaojun Yang*, Junxiao Pan, and Dongliang Chu

  • *Contact author: xiaojunyang01@foxmail.com
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Phys. Rev. B 113, 104447 – Published 27 March, 2026

DOI: https://doi.org/10.1103/1mxv-fttm

Abstract

We report the intrinsic anomalous Hall effect of NdCrGe3 single crystals, which is a hexagonal ferromagnet metal with a one-dimensional crystal structure. The NdCrGe3 undergoes multimagnetic transitions with a ferromagnetic transition at TC∼101 K and a spin reorientation transition at ∼55 K. The Hall effect indicates that the dominant charge carriers shift from electrons to holes near TC. Large anomalous Hall conductivity ∼681.8 (600.3) Ω−1 cm−1 for H//ab (H//c) is observed, consistent with the theoretically anticipated value derived from the intrinsic Berry-curvature mechanism. The linear scaling relationships observed between the anomalous Hall resistivity and the longitudinal resistivity offer strong and convincing evidence indicating that the intrinsic Karplus-Luttinger mechanism, rather than extrinsic side-jump and skew-scattering mechanisms, assumes a dominant position in the anomalous Hall effect. The distinctive crystal structure, unconventional complex magnetic interactions, and the observed intrinsic anomalous Hall effect could make NdCrGe3 as a promising candidate for future electronic devices.

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Phys. Rev. B 113, 104447– Published 27 March, 2026
  • Received 23 December 2025
  • Revised 5 March 2026
  • Accepted 13 March 2026
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