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PreprintCC BY-NC-SA 4.0arXiv

Enhanced anomalous Nernst effect in Pr-doped kagome and honeycomb magnet LaCo5

  • Zheng Li
  • Yueyang Wu
  • Tianhao Li
  • Jun-jian Mi
  • Shu-Xiang Li
  • Jiang Ma
  • Qian Tao
  • Xiaofeng Xu
  • Sheng Xu
  • Zhu-An Xu
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Abstract

In this work, we report the successful synthesis of La1−xPrxCo5 (x = 0.09, 0.21, 0.45) single crystals. Magnetic field-dependent magnetization measurements reveal that Pr substitution induces negligible changes in the magnetic properties of LaCo5, with the ferromagnetic ordering predominantly governed by the Co sublattices. Remarkably, the doped systems exhibit significant enhancements in the anomalous Nernst effect. At 300~K, the anomalous Nernst thermopower SAyx reaches 6.5~μV/K in La0.55Pr0.45Co5, corresponding to a ∼ 40 \% enhancement compared to the parent compound. This significant improvement can be predominantly attributed to Pr-doping-induced Fermi level modification, which directly leads to a redistribution of Berry curvature across the Fermi surface. This work highlights the effectiveness of Pr doping in boosting the anomalous Nernst effect of La1−xPrxCo5, offering a practical strategy to design advanced materials for room-temperature energy-harvesting technologies and high-efficiency thermal sensing devices.

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Cite

BibTeXRIS
BibTeX
@misc{li2026enhanced,
  title = {{Enhanced anomalous Nernst effect in Pr-doped kagome and honeycomb magnet LaCo$_5$}},
  author = {Zheng Li and Yueyang Wu and Tianhao Li and Jun-jian Mi and Shu-Xiang Li and Jiang Ma and Qian Tao and Xiaofeng Xu and Sheng Xu and Zhu-An Xu},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.12452},
  eprint = {2609.12452},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.12452},
  note = {CC BY-NC-SA 4.0},
}
RIS
TY  - UNPB
TI  - Enhanced anomalous Nernst effect in Pr-doped kagome and honeycomb magnet LaCo_5
AU  - Zheng Li
AU  - Yueyang Wu
AU  - Tianhao Li
AU  - Jun-jian Mi
AU  - Shu-Xiang Li
AU  - Jiang Ma
AU  - Qian Tao
AU  - Xiaofeng Xu
AU  - Sheng Xu
AU  - Zhu-An Xu
PY  - 2026
DA  - 2026/09/11
PB  - arXiv
DO  - 10.48550/arxiv.2609.12452
UR  - https://arxiv.org/abs/2609.12452
AB  - In this work, we report the successful synthesis of La_1−xPr_xCo_5 (x = 0.09, 0.21, 0.45) single crystals. Magnetic field-dependent magnetization measurements reveal that Pr substitution induces negligible changes in the magnetic properties of LaCo_5, with the ferromagnetic ordering predominantly governed by the Co sublattices. Remarkably, the doped systems exhibit significant enhancements in the anomalous Nernst effect. At 300~K, the anomalous Nernst thermopower S^A_yx reaches 6.5~μV/K in La_0.55Pr_0.45Co_5, corresponding to a ∼ 40 \% enhancement compared to the parent compound. This significant improvement can be predominantly attributed to Pr-doping-induced Fermi level modification, which directly leads to a redistribution of Berry curvature across the Fermi surface. This work highlights the effectiveness of Pr doping in boosting the anomalous Nernst effect of La_1−xPr_xCo_5, offering a practical strategy to design advanced materials for room-temperature energy-harvesting technologies and high-efficiency thermal sensing devices.
ER  -