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Observation of quantum spin Hall states in TaPdTe
Xuguang Wang, Daiyu Geng, Dayu Yan +14
Two-dimensional topological insulators (2DTIs), which host the quantum spin Hall (QSH) effect, are one of the key materials in next-generation spintronic devices. To date, experime…
Surface Charge Induced Dirac Band Splitting in a Charge Density Wave Material (TaSe4)2I
Hemian Yi, Zengle Huang, Wujun Shi +14
(TaSe4)2I, a quasi-one-dimensional (1D) crystal, shows a characteristic temperature-driven metal-insulator phase transition. Above the charge density wave (CDW) temperature Tc, (Ta…
Quantum Spin Hall Effect in TaMTe (M = Pd, Ni)
Zhaopeng Guo, Dayu Yan, Haohao Sheng +3
Quantum spin Hall (QSH) effect with great promise for the potential application in spintronics and quantum computing has attracted extensive research interest from both theoretical…
Application of topological quantum chemistry in electrides
Simin Nie, Yuting Qian, Jiacheng Gao +3
The recently developed theory of topological quantum chemistry (TQC) has built a close connection between band representations in momentum space and orbital characters in real spac…
Superconductivity and Fermi Surface Nesting in the Candidate Dirac Semimetal NbC
Dayu Yan, Daiyu Geng, Qiang Gao +18
We report the synthesis of single-crystal NbC, a transition metal carbide with various unusual properties. Transport, magnetic susceptibility, and specific heat measurements demons…
Topological electronic structure in the antiferromagnet HoSbTe
Shaosheng Yue, Yuting Qian, Meng Yang +11
Magnetic topological materials, in which the time-reversal symmetry is broken, host various exotic quantum phenomena, including the quantum anomalous Hall effect, axion insulator s…
Magnetic and electronic properties of a topological nodal line semimetal candidate: HoSbTe
Meng Yang, Yuting Qian, Dayu Yan +7
We report the experimental and theoretical studies of a magnetic topological nodal line semimetal candidate HoSbTe. Single crystals of HoSbTe are grown from Sb flux, crystallizing…
Observation of topological electronic structure in quasi-1D superconductor TaSe3
Cheng Chen, Aiji Liang, Shuai Liu +21
Topological superconductors (TSCs), with the capability to host Majorana bound states that can lead to non-Abelian statistics and application in quantum computation, have been one…
Crystalline symmetry-protected non-trivial topology in prototype compound BaAl
Kefeng Wang, Ryo Mori, Zhijun Wang +9
The BaAl prototype crystal structure is the most populous of all structure types, and is the building block for a diverse set of sub-structures including the famous ThCrSi$…
Six-fold Excitations in Electrides
Simin Nie, B. Andrei Bernevig, Zhijun Wang
Due to the lack of full rotational symmetry in condensed matter physics, solids exhibit new excitations beyond Dirac and Weyl fermions, of which the six-fold excitations have attra…
High-throughput screening for Weyl Semimetals with S Symmetry
Jiacheng Gao, Yuting Qian, Simin Nie +3
Based on irreducible representations (or symmetry eigenvalues) and compatibility relations, a material can be predicted to be a topological/trivial insulator [satisfying compatibil…
Irvsp: to obtain irreducible representations of electronic states in the VASP
Jiacheng Gao, Quansheng Wu, Clas Persson +1
We present an open-source program irvsp, to compute irreducible representations of electronic states for all 230 space groups with an interface to the Vienna ab-initio Simulation P…