The DOI matches its Crossref record; 45 of the 45 references it cites were found in a registry or an index.
Dirac fermions and flat bands in the ideal kagome metal FeSn
Open accessAbstract
A kagome lattice of 3 d transition metal ions is a versatile platform for correlated topological phases hosting symmetry-protected electronic excitations and magnetic ground states. However, the paradigmatic states of the idealized two-dimensional kagome lattice—Dirac fermions and flat bands—have not been simultaneously observed. Here, we use angle-resolved photoemission spectroscopy and de Haas–van Alphen quantum oscillations to reveal coexisting surface and bulk Dirac fermions as well as flat bands in the antiferromagnetic kagome metal FeSn, which has spatially decoupled kagome planes. Our band structure calculations and matrix element simulations demonstrate that the bulk Dirac bands arise from in-plane localized Fe-3 d orbitals, and evidence that the coexisting Dirac surface state realizes a rare example of fully spin-polarized two-dimensional Dirac fermions due to spin-layer locking in FeSn. The prospect to harness these prototypical excitations in a kagome lattice is a frontier of great promise at the confluence of topology, magnetism and strongly correlated physics. A prototypical kagome metal with magnetic and topological properties is identified.
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Cites
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Cited by
Cascade of correlated electron states in the kagome superconductor CsV3Sb5
Zhao, H., Li, H., Ortiz, B. R., Teicher, S. M. L., Park, T., Ye, M., Wang, Z., Balents, L., Wilson, S. D., & Zeljkovic, I. (2021) · Nature · doi:10.1038/s41586-021-03946-w · Cited by 513
Quantum-limit Chern topological magnetism in TbMn6Sn6
Yin, J.-X., Ma, W., Cochran, T. A., Xu, X., Zhang, S. S., Tien, H.-J., Shumiya, N., Cheng, G., Jiang, K., Lian, B., et al. (2020) · Nature · doi:10.1038/s41586-020-2482-7 · Cited by 503
Liang, Z., Hou, X., Zhang, F., Ma, W., Wu, P., Zhang, Z., Yu, F., Ying, J.-J., Jiang, K., Shan, L., et al. (2021) · Physical Review X · doi:10.1103/physrevx.11.031026 · Cited by 404
Kagome superconductors AV3Sb5 (A = K, Rb, Cs)
Jiang, K., Wu, T., Yin, J.-X., Wang, Z., Hasan, M. Z., Wilson, S. D., Chen, X., & Hu, J. (2023) · National Science Review · doi:10.1093/nsr/nwac199 · Cited by 259
Metadata
- Authors
- Kang, M., Ye, L., Fang, S., You, J.-S., Levitan, A., Han, M., Facio, J. I., Jozwiak, C., Bostwick, A., Rotenberg, E., Chan, M. K., McDonald, R. D., Graf, D., Kaznatcheev, K., Vescovo, E., Bell, D. C., Kaxiras, E., van den Brink, J., Richter, M., Prasad Ghimire, M., Checkelsky, J. G., & Comin, R.
- Venue
- Nature Materials
- Published
- 2019-12-09
- Volume
- 19
- Issue
- 2
- Pages
- 163-169
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W2948206825
- Cited by
- 687
- References
- 45
- FWCI
- 25.89
- Type
- journal article
- Language
- en
- Open access
- green
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- Kang, M., Ye, L., Fang, S., You, J.-S., Levitan, A., Han, M., Facio, J. I., Jozwiak, C., Bostwick, A., Rotenberg, E., Chan, M. K., McDonald, R. D., Graf, D., Kaznatcheev, K., Vescovo, E., Bell, D. C., Kaxiras, E., van den Brink, J., Richter, M., . . . Comin, R. (2020). Dirac fermions and flat bands in the ideal kagome metal FeSn. Nature Materials. https://doi.org/10.1038/s41563-019-0531-0
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