Large topological Hall effect in a geometrically frustrated kagome magnet Fe${}_3$Sn${}_2$

Abstract

We report on the observation of a large topological Hall effect (THE) over a wide temperature region in a geometrically frustrated Fe3Sn2 magnet with a kagome-bilayer structure. We found that the magnitude of the THE resistivity increases with temperature and reaches -0.875 μΩ.cm at 380 K. Moreover, the critical magnetic fields with the change of THE are consistent with the magnetic structure transformation, which indicates that the real-space fictitious magnetic field is proportional to the formation of magnetic skyrmions in Fe3Sn2. The results strongly suggest that the large THE originates from the topological magnetic spin textures and may open up further research opportunities in exploring emergent phenomena in kagome materials.

18 pages, 4 figures and Supplementary materials

References in corpus (6)

• Spontaneous Skyrmion Ground States in Magnetic Metals
• Robust formation of skyrmions and topological Hall effect in epitaxial thin films of MnSi
• Theoretical prediction of a strongly correlated Dirac metal
• Fractional Chern Insulators in Topological Flat bands with Higher Chern Number
• Anomalous Hall effect of ferromagnetic Fe3Sn2 single crystal with geometrically frustrated kagome lattice
• Controllable chirality-induced geometrical Hall effect in a frustrated highly-correlated metal

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