| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Pressure-Tunable Large Anomalous Hall Effect in Ferromagnetic Metal LiMn$_{{6}}$Sn$_{{6}}$ |
| Lingling Gao1†, Junwen Lai2†, Dong Chen3,4†, Cuiying Pei1, Qi Wang1,5, Yi Zhao1, Changhua Li1, Weizheng Cao1, Juefei Wu1, Yulin Chen1,5,6, Xingqiu Chen2,7, Yan Sun2,7*, Claudia Felser3*, and Yanpeng Qi1,5,8* |
1School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
2Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
3Max Planck Institute for Chemical Physics of Solids, Dresden 01187, Germany
4College of Physics, Qingdao University, Qingdao 266071, China
5ShanghaiTech Laboratory for Topological Physics, ShanghaiTech University, Shanghai 201210, China
6Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK
7School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
8Shanghai Key Laboratory of High-resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, China
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| Cite this article: |
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Lingling Gao, Junwen Lai, Dong Chen et al 2024 Chin. Phys. Lett. 41 057302 |
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Abstract Recently, giant intrinsic anomalous Hall effect (AHE) has been observed in the materials with kagome lattice. Here, we systematically investigate the influence of high pressure on the AHE in the ferromagnet LiMn$_{6}$Sn$_{6}$ with clean Mn kagome lattice. Our in situ high-pressure Raman spectroscopy indicates that the crystal structure of LiMn$_{6}$Sn$_{6}$ maintains a hexagonal phase under high pressures up to 8.51 GPa. The anomalous Hall conductivity (AHC) $\sigma_{xy}^{\rm A}$ remains around 150 $\Omega^{{-1}}\cdot$cm$^{{-1}}$, dominated by the intrinsic mechanism. Combined with theoretical calculations, our results indicate that the stable AHE under pressure in LiMn$_{6}$Sn$_{6}$ originates from the robust electronic and magnetic structure.
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Received: 17 January 2024
Published: 28 May 2024
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| PACS: |
07.35.+k
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(High-pressure apparatus; shock tubes; diamond anvil cells)
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73.43.-f
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(Quantum Hall effects)
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75.50.Cc
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(Other ferromagnetic metals and alloys)
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