Journal
NATURE COMMUNICATIONS
Volume 10, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-019-12822-1
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Funding
- Gordon and Betty Moore Foundation EPiQS Initiative [GBMF3848]
- NSF [DMR-1554891]
- Tsinghua Education Foundation
- Samsung Foundation of Culture
- Hong Kong Research Grants Council [ECS26302118]
- STC Center for Integrated Quantum Materials, NSF [DMR-1231319]
- U.S. Department of Energy BES Science at 100T grant
- National Science Foundation [DMR-1157490, DMR-1644779]
- State of Florida
- U.S. Department of Energy
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Primarily considered a medium of geometric frustration, there has been a growing recognition of the kagome network as a harbor of lattice-borne topological electronic phases. In this study we report the observation of magnetoquantum de Haas-van Alphen oscillations of the ferromagnetic kagome lattice metal Fe3Sn2. We observe a pair of quasi-two-dimensional Fermi surfaces arising from bulk massive Dirac states and show that these band areas and effective masses are systematically modulated by the rotation of the ferromagnetic moment. Combined with measurements of Berry curvature induced Hall conductivity, our observations suggest that the ferromagnetic Dirac fermions in Fe3Sn2 are subject to intrinsic spin-orbit coupling in the d electron sector which is likely of Kane-Mele type. Our results provide insights for spintronic manipulation of magnetic topological electronic states and pathways to realizing further highly correlated topological materials from the lattice perspective.
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