Multiband-Induced Complex Magnetotransport in the Kagome Metal LuNb6Sn6
Abstract
We report the electrical transport properties of the kagome metal LuNb6Sn6, which undergoes a charge density wave (CDW) transition at TCDW≈80 K. Similar to the kagome metals AV3Sb5 (A = K, Rb, Cs), LuNb6Sn6 develops complex magnetotransport behavior near and below the CDW transition. In particular, the longitudinal magnetoconductivity exhibits an approximately linear field dependence below about 1 T, whereas the field dependence of Hall conductivity displays pronounced nonlinearity and a field-induced sign reversal. Although an anomalous Hall-like contribution can be extracted by subtracting a local background from the Hall conductivity, mobility-spectrum analysis shows that the overall magnetotransport can be largely accounted for by multiband conduction involving high-mobility electronlike and holelike carriers. Nevertheless, sizable deviations from the multiband model emerge near TCDW, pointing to additional CDW-related scattering processes. These results demonstrate that high-mobility multiband transport, together with CDW-induced modifications of carrier scattering, play important roles in the complex magnetotransport of LuNb6Sn6.
Related
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- Quantum metric induced nonlinear transport in the hidden loop-current phase of kagome metal RbV3Sb5
- Electronic structure and anisotropic magnetotransport in the topological kagome ferromagnet MgMn6Sn6
- Pressure-induced double-dome superconductivity in doped kagome metal Cs(V0.86Ta0.14)3Sb5 without charge density wave
- Pressure-induced unconventional charge-density-wave states in kagome metal AV3Sb5 (A = K, Rb, Cs)
BibTeX
@misc{zhang2026multibandinduced,
title = {{Multiband-Induced Complex Magnetotransport in the Kagome Metal LuNb$_6$Sn$_6$}},
author = {Hongye Zhang and Xingyu Ma and Ying Zhu and Jingyang Zhu and Andreas Eich and Yuan Tang and Xiong Wang and Ningxi Yang and Aifeng Wang and Yisheng Chai and Xinrun Mi and Michael Merz and Quansheng Wu and Mingquan He},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.41409},
eprint = {2610.41409},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.41409},
note = {CC BY-NC-ND 4.0},
}
RIS
TY - UNPB
TI - Multiband-Induced Complex Magnetotransport in the Kagome Metal LuNb_6Sn_6
AU - Hongye Zhang
AU - Xingyu Ma
AU - Ying Zhu
AU - Jingyang Zhu
AU - Andreas Eich
AU - Yuan Tang
AU - Xiong Wang
AU - Ningxi Yang
AU - Aifeng Wang
AU - Yisheng Chai
AU - Xinrun Mi
AU - Michael Merz
AU - Quansheng Wu
AU - Mingquan He
PY - 2026
DA - 2026/10/30
PB - arXiv
DO - 10.48550/arxiv.2610.41409
UR - https://arxiv.org/abs/2610.41409
AB - We report the electrical transport properties of the kagome metal LuNb_6Sn_6, which undergoes a charge density wave (CDW) transition at T_CDW≈80 K. Similar to the kagome metals AV_3Sb_5 (A = K, Rb, Cs), LuNb_6Sn_6 develops complex magnetotransport behavior near and below the CDW transition. In particular, the longitudinal magnetoconductivity exhibits an approximately linear field dependence below about 1 T, whereas the field dependence of Hall conductivity displays pronounced nonlinearity and a field-induced sign reversal. Although an anomalous Hall-like contribution can be extracted by subtracting a local background from the Hall conductivity, mobility-spectrum analysis shows that the overall magnetotransport can be largely accounted for by multiband conduction involving high-mobility electronlike and holelike carriers. Nevertheless, sizable deviations from the multiband model emerge near T_CDW, pointing to additional CDW-related scattering processes. These results demonstrate that high-mobility multiband transport, together with CDW-induced modifications of carrier scattering, play important roles in the complex magnetotransport of LuNb_6Sn_6.
ER -