548 citations · 4.5k across the 56 of their papers we have counts for
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From Multiple Nodal Chain to Dirac/Weyl Semimetal and Topological Insulator in Ternary Hexagonal Materials
Cong Chen, Zefeng Su, Xiaoming Zhang +2
Dirac semimetal (DSM) hosts four-fold degenerate isolated band-crossing points with linear dispersion, around which the quasiparticles resemble the relativistic Dirac Fermions. It…
Nodal surface semimetals: Theory and material realization
Weikang Wu, Ying Liu, Si Li +5
We theoretically study the three-dimensional topological semimetals with nodal surfaces protected by crystalline symmetries. Different from the well-known nodal-point and nodal-lin…
Nonsymmorphic-symmetry-protected hourglass Dirac loop, nodal line, and Dirac point in bulk and monolayer SiTe ( Ta, Nb)
Si Li, Ying Liu, Shan-Shan Wang +5
Nonsymmorphic space group symmetries can generate exotic band-crossings in topological metals and semimetals. Here, based on symmetry analysis and first-principles calculations, we…
Graphdiyne Nanoribbons with Open Hexagonal Rings: Existence of Topological Unprotected Edge States
Cong Chen, Jin Li, Xian-Lei Sheng
Using first principles calculations, we studied a new class of graphdiyne nanoribbons (GDYNR) with open hexagonal rings on the edges.To avoid the effects from dangling bond, hydrog…
Hybrid Dirac Semimetal in CaAgBi Materials Family
Cong Chen, Shan-Shan Wang, Lei Liu +4
Based on their formation mechanisms, Dirac points in three-dimensional systems can be classified as accidental or essential. The former can be further distinguished into type-I and…
Origin of nonlocal resistance in multiterminal graphene on hexagonal-boron-nitride: Fermi surface edge currents rather than Fermi sea topological valley currents
J. M. Marmolejo-Tejada, J. H. García, M. Petrović +6
The recent observation [R. V. Gorbachev et al., Science {\bf 346}, 448 (2014)] of nonlocal resistance near the Dirac point (DP) of multiterminal graphene on aligned…
Hourglass Dirac Chain Metal in Rhenium Dioxide
Shan-Shan Wang, Ying Liu, Zhi-Ming Yu +2
Nonsymmorphic symmetries, which involve fractional lattice translations in crystalline materials, can generate exotic types of fermionic excitations that are robust against spin-or…
Coexistence of four-band nodal rings and triply-degenerate nodal points in centrosymmetric metal diborides
Xiaoming Zhang, Zhi-Ming Yu, Xian-Lei Sheng +2
Topological metals with protected band-crossing points have been attracting great interest. Here we report novel topological band features in a family of metal diboride materials.…
-Orbital Topological Insulator and Semimetal in Antifluorite CuS Family: Contrasting Spin Helicities, Nodal Box, and Hybrid Surface States
Xian-Lei Sheng, Zhi-Ming Yu, Rui Yu +2
We reveal a class of three-dimensional -orbital topological materials in the antifluorite CuS family. Derived from the unique properties of low-energy states, their…