272 citations · 2.7k across the 42 of their papers we have counts for
7 papers · 1 filter
First principle calculation of the effective Zeeman's couplings in topological materials
Zhi-Da Song, Song Sun, Yuan-Feng Xu +4
In this paper, we propose a first principle calculation method for the effective Zeeman's coupling based on the second perturbation theory and apply it to a few topological materia…
Band gap anomaly and topological properties in lead chalcogenides
Simin Nie, Xiao Yan Xu, Gang Xu +1
Band gap anomaly is a well-known issue in lead chalcogenides PbX (X=S, Se, Te, Po). Combining ab initio calculations and tight-binding (TB) method, we have studied the band evoluti…
Observation of Fermi arc spin texture in TaAs
B. Q. Lv, S. Muff, T. Qian +15
We have investigated the spin texture of surface Fermi arcs in the recently discovered Weyl semimetal TaAs using spin- and angle-resolved photoemission spectroscopy. The experiment…
Two-Dimensional Oxide Topological Insulator With Iron-Pnictide Superconductor LiFeAs Structure
Qiunan Xu, Zhida Song, Simin Nie +3
By using first-principles calculations, we propose that ZrSiO can be looked as a three-dimensional (3D) oxide weak topological insulator (TI) and its single layer is a long-sought-…
Quantum Spin Hall State on Square-like Lattice
Zhida Song, S. M. Nie, Hongming Weng +1
We find that quantum spin Hall (QSH) state can be obtained on a square-like or rectangular lattice, which is generalized from two-dimensional (2D) transition metal dichalcogenide (…
Direct spectroscopic evidence for completely filled Cu shell in BaCuAs and -BaCuSb
S. F. Wu, P. Richard, A. van Roekeghem +9
We use angle-resolved photoemission spectroscopy to extract the band dispersion and the Fermi surface of BaCuAs and -BaCuSb. While the Cu bands in both mate…
Quantum Spin Hall Effect in 2D Transition Metal Dichalcogenide Haeckelites
S. M. Nie, Zhida Song, Hongming Weng +1
By using first-principles calculation, we have found that a family of 2D transition metal dichalcogenide haeckelites with square-octagonal lattice -4-8 (=Mo, W and =S,…