The DOI matches its Crossref record; 49 of the 49 references it cites were found in a registry or an index.
Chiral topological semimetal with multifold band crossings and long Fermi arcs
Open accessAbstract
Topological semimetals in crystals with a chiral structure (which possess a handedness due to a lack of mirror and inversion symmetries) are expected to display numerous exotic physical phenomena, including fermionic excitations with large topological charge1, long Fermi arc surface states2,3, unusual magnetotransport4 and lattice dynamics5, as well as a quantized response to circularly polarized light6. So far, all experimentally confirmed topological semimetals exist in crystals that contain mirror operations, meaning that these properties do not appear. Here, we show that AlPt is a structurally chiral topological semimetal that hosts new four-fold and six-fold fermions, which can be viewed as a higher spin generalization of Weyl fermions without equivalence in elementary particle physics. These multifold fermions are located at high symmetry points and have Chern numbers larger than those in Weyl semimetals, thus resulting in multiple Fermi arcs that span the full diagonal of the surface Brillouin zone. By imaging these long Fermi arcs, we experimentally determine the magnitude and sign of their Chern number, allowing us to relate their dispersion to the handedness of their host crystal.AlPt is shown to be a chiral topological material with four-fold and six-fold degeneracies in the band structure. Fermi arc edge states span the whole Brillouin zone and their dispersion enables identification of the handedness of the chiral material.
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Cites
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Cited by
Helicity-dependent photocurrents in the chiral Weyl semimetal RhSi
Rees, D., Manna, K., Lu, B., Morimoto, T., Borrmann, H., Felser, C., Moore, J. E., Torchinsky, D. H., & Orenstein, J. (2020) · Science Advances · doi:10.1126/sciadv.aba0509 · Cited by 234
Self-citationGiant topological longitudinal circular photo-galvanic effect in the chiral multifold semimetal CoSi
Ni, Z., Wang, K., Zhang, Y., Pozo, O., Xu, B., Han, X., Manna, K., Paglione, J., Felser, C., Grushin, A. G., et al. (2021) · Nature Communications · doi:10.1038/s41467-020-20408-5 · Cited by 170
Self-citationTopology and Symmetry of Quantum Materials via Nonlinear Optical Responses
Orenstein, J., Moore, J. E., Morimoto, T., Torchinsky, D. H., Harter, J. W., & Hsieh, D. (2021) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031218-013712 · Cited by 145
Unconventional Photocurrents from Surface Fermi Arcs in Topological Chiral Semimetals
Chang, G., Yin, J.-X., Neupert, T., Sanchez, D. S., Belopolski, I., Zhang, S. S., Cochran, T. A., Chéng, Z., Hsu, M.-C., Huang, S.-M., et al. (2020) · Physical Review Letters · doi:10.1103/physrevlett.124.166404 · Cited by 72
Ramos, M. A. (2022) · doi:10.1142/q0371 · Cited by 56
Metadata
- Authors
- Schröter, N. B. M., Pei, D., Vergniory, M. G., Sun, Y., Manna, K., de Juan, F., Krieger, J. A., Süss, V., Schmidt, M., Dudin, P., Bradlyn, B., Kim, T. K., Schmitt, T., Cacho, C., Felser, C., Strocov, V. N., & Chen, Y.
- Venue
- Nature Physics
- Published
- 2019-05-06
- Volume
- 15
- Issue
- 8
- Pages
- 759-765
- ISSN
- 1745-2473 (ISSN-L)
- 1745-2481
- OpenAlex
- W2943261621
- Cited by
- 285
- References
- 49
- FWCI
- 18.67
- Type
- journal article
- Language
- en
- Open access
- green
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- Schröter, N. B. M., Pei, D., Vergniory, M. G., Sun, Y., Manna, K., de Juan, F., Krieger, J. A., Süss, V., Schmidt, M., Dudin, P., Bradlyn, B., Kim, T. K., Schmitt, T., Cacho, C., Felser, C., Strocov, V. N., & Chen, Y. (2019). Chiral topological semimetal with multifold band crossings and long Fermi arcs. Nature Physics. https://doi.org/10.1038/s41567-019-0511-y
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