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Nodal Manifolds Bounded by Exceptional Points on Non-Hermitian Honeycomb Lattices and Electrical-Circuit Realizations
Kaifa Luo, Jiajin Feng, Y. X. Zhao +1
Topological semimetals feature a diversity of nodal manifolds including nodal points, various nodal lines and surfaces, and recently novel quantum states in non-Hermitian systems h…
Large Fermi-arc and robust Weyl semimetal phase in AgS
Zhenwei Wang, Kaifa Luo, Jianzhou Zhao +1
Three-dimensional Dirac and Weyl semimetals have attracted widespread interest in condensed matter physics and material science. Here, based on first-principles calculations and sy…
Evidence of Coulomb interaction induced Lifshitz transition and robust hybrid Weyl semimetal in Td MoTe2
N. Xu, Z. W. Wang, A. Magrez +13
Using soft x-ray angle-resolved photoemission spectroscopy we probed the bulk electronic structure of Td MoTe2. We found that on-site Coulomb interaction leads to a Lifshitz transi…
Exotic Node Line in ternary MgSrSi-type crystals
Jinling Lian, Lixian Yu, Qi-Feng Liang +3
Node line (NL) band-touchings protected by mirror symmetry (named as -NL), the product of inversion and time reversal symmetry (-NL), or nonsymmorphic symmet…
Evidence for a Dirac nodal-line semimetal in SrAs
Shichao Li, Zhaopeng Guo, Dongzhi Fu +11
Dirac nodal-line semimetals with the linear bands crossing along a line or loop, represent a new topological state of matter. Here, by carrying out magnetotransport measurements an…
Topological nodal states in circuit lattice
Kaifa Luo, Rui Yu, Hongming Weng
The search for artificial structure with tunable topological properties is an interesting research direction of today's topological physics. Here, we introduce a scheme to realize…
Dirac semimetal in type IV magnetic space group
Guiyuan Hua, Simin Nie, Zhida Song +3
Analogues of the elementary particles, Dirac fermions in condensed matter have received extensive attention for both scientific interest and device applications. In this work, we g…