Heavy Weyl Fermion State in CeRu_{4}Sn_{6}
A new type of topological state in strongly correlated condensed matter systems, the heavy Weyl fermion state, has been found in a heavy fermion material, CeRu_{4}Sn_{6}, which has no inversion symmetry. Two different types of Weyl points, types I and II, can be found in the quasiparticle band struc...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2017-03-01
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| Series: | Physical Review X |
| Online Access: | http://doi.org/10.1103/PhysRevX.7.011027 |
| Summary: | A new type of topological state in strongly correlated condensed matter systems, the heavy Weyl fermion state, has been found in a heavy fermion material, CeRu_{4}Sn_{6}, which has no inversion symmetry. Two different types of Weyl points, types I and II, can be found in the quasiparticle band structure obtained by the LDA+Gutzwiller calculations, which can treat the strong correlation effects among the f electrons from cerium atoms. The surface calculations indicate that the topologically protected Fermi arc states exist on the (010) but not on the (001) surface. |
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| ISSN: | 2160-3308 |