期刊
PHYSICAL REVIEW X
卷 7, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevX.7.011027
关键词
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资金
- National Key Research and Development Program of China [2016YFA0300600]
- National 973 program of China [2013CB921700]
- National Natural Science Foundation of China [11674369, 11422428]
- Chinese Academy of Sciences [XDB07020100]
- Science Challenge Project
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, CeRu4Sn6, 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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