98 citations · 793 across the 32 of their papers we have counts for
6 papers · 1 filter
From Atomic Semimetal to Topological Nontrivial Insulator
Xiao-Ping Li, Da-Shuai Ma, Cheng-Cheng Liu +2
Topological band insulators and (semi-) metals can arise out of atomic insulators when the hopping strength between electrons increases. Such topological phases are separated from…
Charge-4 Weyl point: Minimum lattice model and chirality-dependent properties
Chaoxi Cui, Xiao-Ping Li, Da-Shuai Ma +2
Topological Weyl semimetals have been attracting broad interest. Recently, a new type of Weyl point with topological charge of , termed as charge-4 Weyl point (C-4 WP), was prop…
Catalogue of Flat-Band Stoichiometric Materials
Nicolas Regnault, Yuanfeng Xu, Ming-Rui Li +11
Topological electronic flatten bands near or at the Fermi level are a promising avenue towards unconventional superconductivity and correlated insulating states. However, the relat…
Two-dimensional Dirac semiconductor and its material realization
Botao Fu, Chao He, Da-Shuai Ma +3
We propose a new concept of two-dimensional (2D) Dirac semiconductor which is characterized by the emergence of fourfold degenerate band crossings near the band edge and provide a…
Weyl Nodal Line-Surface Half-metal in CaFeO
Run-Wu Zhang, Da-Shuai Ma, Jian-Min Zhang +1
Manipulating the spin degrees of freedom of electrons affords an excellent platform for exploring novel quantum states in condensed-matter physics and material science. Based on fi…
Double Dirac Nodal Line Semimetal with Torus Surface State
Xiao-Ping Li, Botao Fu, Da-Shuai Ma +3
We propose a class of nodal line semimetals that host an eight-fold degenerate double Dirac nodal line (DDNL) with negligible spin-orbit coupling. We find only 5 of the 230 space g…