de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2
de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2
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DOI：
10.1038/s41467-019-12822-1
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发表时间：
2018-09
影响因子：
16.6
通讯作者：
Linda Ye;M. Chan;R. McDonald;D. Graf;Mingu Kang;Junwei Liu;Takehito Suzuki;R. Comin;L. Fu-L.
中科院分区：
文献类型：
--
作者：
Linda Ye;M. Chan;R. McDonald;D. Graf;Mingu Kang;Junwei Liu;Takehito Suzuki;R. Comin;L. Fu-L.
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 Fe3Sn2are subject to intrinsic spin-orbit coupling in thedelectron 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.
