2.4k citations · 6.4k across the 28 of their papers we have counts for
9 papers · 1 filter
Design monolayer iodinenes based on halogen bond and tiling theory
Kejun Yu, Botao Fu, Runwu Zhang +5
Xenes, two-dimensional (2D) monolayers composed of a single element, with graphene as a typical representative, have attracted widespread attention. Most of the previous Xenes, X f…
From Node-Line Semimetals to Large Gap QSH States in New Family of Pentagonal Group-IVA Chalcogenide
Run-Wu Zhang, Cheng-Cheng Liu, Da-Shuai Ma +1
Two-dimensional (2D) topological insulators (TIs) have attracted tremendous research interest from both theoretical and experimental fields in recent years. However, it is much les…
Discovery of two-dimensional Dirac nodal line fermions in monolayer Cu2Si
Baojie Feng, Botao Fu, Shusuke Kasamatsu +18
Topological nodal line semimetals, a novel quantum state of materials, possess topologically nontrivial valence and conduction bands that touch at a line near the Fermi level. The…
Valley-polarized quantum anomalous Hall phases and tunable topological phase transitions in half-hydrogenated Bi honeycomb monolayers
Cheng-Cheng Liu, Jin-Jian Zhou, Yugui Yao
Based on first-principles calculations, we find novel valley-polarized quantum anomalous Hall (VP-QAH) phases with a large gap-0.19 eV at an appropriate buckled angle and tunable t…
Large-Gap Quantum Spin Hall Insulator in single layer bismuth monobromide BiBr
Jin-Jian Zhou, Wanxiang Feng, Cheng-Cheng Liu +2
Quantum spin Hall (QSH) insulators have gapless topological edge states inside the bulk band gap, which can serve as dissipationless spin current channels protected by the time-rev…
Low-Energy Effective Hamiltonian for Giant-Gap Quantum Spin Hall Insulators in Honeycomb X-Hydride/Halide (X=N-Bi) Monolayers
Cheng-Cheng Liu, Shan Guan, Zhigang Song +3
Using the tight-binding method in combination with first-principles calculations, we systematically derive a low-energy effective Hilbert subspace and Hamiltonian with spin-orbit c…
Quantum spin Hall insulators and quantum valley Hall insulators of BiX/SbX (X = H, F, Cl, and Br) monolayers with a record bulk band gap
Zhigang Song, Cheng-Cheng Liu, Jinbo Yang +7
Large bulk band gap is critical for application of the quantum spin Hall (QSH) insulator or two dimensional (2D) topological insulator (TI) in spintronic device operating at room t…
Low-energy effective Hamiltonian involving spin-orbit coupling in Silicene and Two-Dimensional Germanium and Tin
Cheng-Cheng Liu, Hua Jiang, Yugui Yao
Starting from the symmetry aspects and tight-binding method in combination with first-principles calculation, we systematically derive the low-energy effective Hamiltonian involvin…
Quantum Spin Hall Effect in Silicene
Cheng-Cheng Liu, Wanxiang Feng, Yugui Yao
Recent years have witnessed great interest in the quantum spin Hall effect (QSHE) which is a new quantum state of matter with nontrivial topological property due to the scientific…