Diverse Magnetic Phase Diagram and Anomalous Hall Effect in Antiferromagetic LuMnSn
arXiv:2503.12359 · doi:10.1103/hwz4-z9mm
Abstract
The interactions between conduction electrons and magnetism can significantly enhance the Hall signal, a phenomenon known as the anomalous Hall effect (AHE). While the AHE is generally not expected in antiferromagnets, a large AHE is observed in certain antiferromagnets with noncollinear spin textures and nonvanishing Berry curvature. In this work, we present a rich temperature and magnetic phase diagram with eight distinct magnetic phases for the antiferromagnetic kagome compound LuMnSn. The Hall effect analysis in LuMnSn reveals both intriguing physical phenomena and methodological challenges. In the coplanar canted antiferromagnetic phase, we observe an AHE, which likely originates from the intrinsic effects. At low temperatures, upon entering the ferromagnetic phase, the AHE sharply increases and exceeds the conventional limits expected from intrinsic mechanisms. We also demonstrate the limitations of standard experimental methods in extracting the topological contribution to the Hall effect data. We show the importance of considering magnetoresistance anisotropy when estimating the anomalous and topological Hall effects. These shortcomings in current approaches in partitioning the Hall response necessitate new tools to interpret transport results in complex magnetic materials such as LuMnSn.
arXiv comment10 pages, 7 figures
References in corpus (33)
- Anomalous Hall effect
- Topological Hall effect in the A-phase of MnSi
- Altermagnetism: spin-momentum locked phase protected by non-relativistic symmetries
- Large anomalous Nernst effect at room temperature in a chiral antiferromagnet
- Skyrmion lattice with a giant topological Hall effect in a frustrated triangular-lattice magnet
- Large intrinsic anomalous Hall effect in half-metallic ferromagnet Co3Sn2S2 with magnetic Weyl fermions
- Universal Scaling Behavior of Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets
- Topological Hall effect and Berry phase in magnetic nanostructures
- Giant Anomalous Hall Effect in the Chiral Antiferromagnet Mn3Ge
- Strong, anisotropic anomalous Hall effect and spin Hall effect in chiral antiferromagnetic compounds Mn ( = Ge, Sn, Ga, Ir, Rh and Pt)
- Novel magnetic states and nematic spin chirality in the kagome lattice metal YMnSn
- Anomalous Hall effect of ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome lattice
- In-plane magnetic field induced double fan spin structure with -axis component in metallic kagome antiferromagnet YMnSn
- Near-room-temperature giant topological Hall effect in antiferromagnetic kagome metal YMn6Sn6
- Giant anomalous Hall resistivity of the room temperature ferromagnet Fe3Sn2 - a frustrated metal with the kagome-bilayer structure
- Chirality induced anomalous-Hall effect in helical spin crystals
- Anomalous Hall Effect in Kagome Ferrimagnet GdMnSn
- Anomalous Hall effect in ferrimagnetic metal RMn6Sn6 (R = Tb, Dy, Ho) with clean Mn kagome lattice
- Topological magnon bands in a room temperature Kagome magnet
- Emergent electromagnetic induction beyond room temperature
- Chiral properties of the zero-field spiral state and field-induced magnetic phases of the itinerant kagome metal YMnSn
- Quantum Interactions in Topological R166 Kagome Magnet
- Interplay between magnetism and band topology in Kagome magnets MnSn
- Skyrmion Topological Hall Effect near Room Temperature
- Origin of spin reorientation and intrinsic anomalous Hall effect in the kagome ferrimagnet TbMn6Sn6
- Unusual magnetic and transport properties in HoMnSn kagome magnet
- Large anomalous Hall effect in single crystals of the kagome Weyl ferromagnet FeSn
- Anisotropic magnetic properties and superzone gap formation in CeGe single crystal
- Topological Hall effect induced by chiral fluctuations in ErMn6Sn6
- Metamagnetic multiband Hall effect in Ising antiferromagnet ErGa
- Large Anomalous Hall Conductivity Derived from an -Electron Collinear Antiferromagnetic Structure
- High-field magnetic phase diagrams of the MnSn kagome metals
- Intrinsic anomalous Hall effect arising from antiferromagnetic structure revealed by high-quality NbMnP