Anisotropically large anomalous and topological Hall effect in a kagome magnet

Abstract

Recently, kagome materials have become an engrossing platform to study the interplay among symmetry, magnetism, topology, and electron correlation. The latest works on RMn6Sn6 (R = rare earth metal) compounds have illustrated that this family could be intriguing to investigate various physical phenomena due to large spin-orbit coupling and strong magnetic ordering. However, combined transport and spectroscopic studies in RMn6Sn6 materials are still limited. Here, we report magnetic, magneto-transport, and angle-resolved photoemission spectroscopy measurements of a kagome magnet ErMn6Sn6 that undergoes antiferromagnetic (TN = 345 K) to ferrimagnetic (TC = 68 K) phase transitions in the presence of field. We observe large anomalous and topological Hall effects serving as transport signatures of the nontrivial Berry curvature. The isothermal magnetization exhibits strong anisotropic nature and the topological Hall effect of the compound depends on the critical field of metamagnetic transition. Our spectroscopic results complemented by theoretical calculations show the multi-orbital kagome fermiology. This work provides new insight into the tunability and interplay of topology and magnetism in a kagome magnet.

arXiv comment18 pages, 18 figures; Supplementary Information included, To be published in PRB

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Cited by in corpus (30)

• Spectroscopic evidence of flat bands in breathing kagome semiconductor Nb3I8
• Quantum Interactions in Topological R166 Kagome Magnet
• Observation of Fermi arcs and Weyl nodes in a non-centrosymmetric magnetic Weyl semimetal
• Intrinsic Magnetic Topological Materials
• Origin of spin reorientation and intrinsic anomalous Hall effect in the kagome ferrimagnet TbMn6Sn6
• Unusual magnetic and transport properties in HoMn${}_6$Sn${}_6$ kagome magnet
• Observation of flat and weakly dispersing bands in a van der Waals semiconductor Nb3Br8 with breathing kagome lattice
• New insight into tuning magnetic phases of $R$Mn${}_6$Sn${}_6$ kagome metals
• Orbital character of the spin-reorientation transition in TbMn${}_6$Sn${}_6$
• Effect of magnetism and phonons on localized carriers in the ferrimagnetic kagome metals GdMn${}_6$Sn${}_6$ and TbMn${}_6$Sn${}_6$
• YbV${}_3$Sb${}_4$ and EuV${}_3$Sb${}_4$, vanadium-based kagome metals with Yb${}^{2+}$ and Eu${}^{2+}$ zig-zag chains
• Chiral and flat-band magnetic cluster excitations in a ferromagnetic kagome metal
• Kagome metals
• Diverse electronic landscape of the kagome metal YbTi3Bi4
• Electronic band structures of topological kagome materials
• Ground-state magnetic structures of topological kagome metals RV${}_6$Sn${}_6$ (R = Tb, Dy, Ho, Er)
• High-field magnetic phase diagrams of the $\text{R}$Mn${}_6$Sn${}_6$ kagome metals
• ErMn${}_6$Sn${}_6$: A Promising Kagome Antiferromagnetic Candidate for Room-Temperature Nernst Effect-based thermoelectrics
• In-Plane Magnetic Anisotropy and Large topological Hall Effect in Self-Intercalated Ferromagnet Cr1.61Te2
• Spin-flop quasi metamagnetic, anisotropic magnetic, and electrical transport behavior of Ho substituted kagome magnet ErMn${}_6$Sn${}_6$
• Observation of multiple flat bands and van Hove singularities in the distorted kagome metal NdTi3Bi4
• Incommensurate and commensurate antiferromagnetic orders in the kagome compound UV${}_6$Sn${}_6$
• Large room temperature anomalous Nernst effect coupled with topological Nernst effect from incommensurate spin structure in a Kagome antiferromagnet
• Magnetic order and physical properties of the Kagome metal UNb${}_6$Sn${}_6$
• Multiple topological corner states in the continuum of extended kagome lattice
• Observation of unexpected band splitting and magnetically-induced band structure reconstruction in TbTi${}_3$Bi${}_4$
• Diverse electronic topography in a distorted kagome metal LaTi3Bi4
• Structural modulation, physical properties, and electronic band structure of the kagome metal UCr${}_6$Ge${}_6$
• Chiral Magnon Mixing by Symmetry-Breaking in Collinear Ferrimagnets
• Spin order and excitations in the collinear kagome antiferromagnet Y${}_{0.5}$Fe${}_3$Sn${}_3$