49 citations · 125 across the 6 of their papers we have counts for
16 papers
Phononic Obstructed Atomic Insulators with Robust Corner Modes
Da-Shuai Ma, Kejun Yu, Xiao-Ping Li +2
Higher-order topological insulators (HOTIs) are described by symmetric exponentially decayed Wannier functions at some unoccupied Wyckoff positions and classified as ob…
Inventory of high-quality flat-band van der Waals materials
Jingyi Duan, Da-Shuai Ma, Run-Wu Zhang +5
More is left to do in the field of flat bands besides proposing theoretical models. One unexplored area is the flat bands featured in the van der Waals (vdW) materials. Exploring m…
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…
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…
Fragile topology in line-graph lattices with two, three, or four gapped flat bands
Christie S. Chiu, Da-Shuai Ma, Zhi-Da Song +2
The geometric properties of a lattice can have profound consequences on its band spectrum. For example, symmetry constraints and geometric frustration can give rise to topologicial…