7 papers
Straight nodal-line phonons in symmorphic space groups
Guang Liu, Yuanjun Jin, Zhongjia Chen +1
Based on first-principles calculations and effective model analysis, all possible straight nodal-line phonons in symmorphic space groups are uncovered. A classification of two-band…
Hybridization-Induced Gapped and Gapless States on the Surfaces of Magnetic Topological Insulators
Xiao-Ming Ma, Zhongjia Chen, Eike F. Schwier +25
The layered MnBi2nTe3n+1 family represents the first intrinsic antiferromagnetic topological insulator (AFM TI, protected by a combination symmetry ) ever discovered, providing an…
Quantum Confined Tomonaga-Luttinger Liquid in MoSe2 Twin Domain Boundaries
Yipu Xia, Junqiu Zhang, Yuanjun Jin +3
There have been conflicting reports on the electronic properties of twin domain boundaries (DBs) in MoSe2 monolayer, including the quantum well states, charge density wave, and Tom…
Large Band Gap Quantum Anomalous Hall Phase in Hexagonal Organometallic Frameworks
Yuanjun Jin, Zhongjia Chen, Bowen Xia +3
The nontrivial band gap plays a critical role in quantum anomalous Hall (QAH) insulators. In this work, we propose that the intrinsic QAH phase with sizable band gaps up to 367 meV…
Ideal Intersecting Nodal Ring Phonons in a Body-Centered Cubic C
Y. J. Jin, Z. J. Chen, B. W. Xia +3
Carbon, a basic versatile element in our universe, exhibits rich varieties of allotropic phases, most of which possess promising nontrivial topological fermions. In this work, we i…
Recipe for Dirac Phonon States with Quantized Valley Berry Phase in Two Dimensional Hexagonal Lattices
Yuanjun Jin, Rui Wang, Hu Xu
The topological quantum states in two-dimensional (2D) materials are fascinating subjects of research, which usually highlight electron-related systems. In this work, we present a…