Anomalous Hall effect in ferrimagnetic metal RMn6Sn6 (R = Tb, Dy, Ho) with clean Mn kagome lattice

Abstract

Kagome lattice, made of corner-sharing triangles, provides an excellent platform for hosting exotic topological quantum states. Here we systematically studied the magnetic and transport properties of RMn6Sn6 (R = Tb, Dy, Ho) with clean Mn kagome lattice. All the compounds have a collinear ferrimagnetic structure with different easy axis at low temperature. The low-temperature magnetoresistance (MR) is positive and has no tendency to saturate below 7 T, while the MR gradually declines and becomes negative with the increasing temperature. A large intrinsic anomalous Hall conductivity about 250 Ω-1cm-1, 40 Ω-1cm-1, 95 Ω-1cm-1 is observed for TbMn6Sn6, DyMn6Sn6, HoMn6Sn6, respectively. Our results imply that RMn6Sn6 system is an excellent platform to discover other intimately related topological or quantum phenomena and also tune the electronic and magnetic properties in future studies.

9 pages, 3 figures

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• Quantum Interactions in Topological R166 Kagome Magnet
• Interplay between magnetism and band topology in Kagome magnets $R$Mn${}_6$Sn${}_6$
• Intrinsic Magnetic Topological Materials
• Unusual magnetic and transport properties in HoMn${}_6$Sn${}_6$ kagome magnet
• Quantum oscillations in Noncentrosymmetric Weyl semimetals RAlSi (R = Sm and Ce)
• Magneto-Transport Properties of Kagome Magnet TmMn${}_6$Sn${}_6$
• Discovery of a magnetic Dirac system with large intrinsic non-linear Hall effect
• Effect of magnetism and phonons on localized carriers in the ferrimagnetic kagome metals GdMn${}_6$Sn${}_6$ and TbMn${}_6$Sn${}_6$
• Electronic band structures of topological kagome materials
• The role of electron correlations in the electronic structure of putative Chern magnet TbMn${}_6$Sn${}_6$
• Ground-state magnetic structures of topological kagome metals RV${}_6$Sn${}_6$ (R = Tb, Dy, Ho, Er)
• Pressure-tunable magnetic topological phases in magnetic topological insulator MnSb4Te7
• Competing Lattice Instability and Magnetism on the Surface of Kagome Metals
• Observation of multiple flat bands and van Hove singularities in the distorted kagome metal NdTi3Bi4
• Diverse Magnetic Phase Diagram and Anomalous Hall Effect in Antiferromagetic LuMn${}_6$Sn${}_6$
• Correlation-driven non-trivial phases in single bi-layer Kagome intermetallics
• Diverse electronic topography in a distorted kagome metal LaTi3Bi4
• Accessing quasi-flat $\text{f}$-bands to harvest large Berry curvature in NdGaSi