7 citations · 19 across the 5 of their papers we have counts for
5 papers
Topological Luttinger semimetallic phase accompanied with surface states realized in silicon
Ying Li, Chi-Ho Cheung, Gang Xu
By means of systematically first-principles calculations and model analysis, a complete phase diagram of the body-centered silicon(BC8-Si) via lattice constant a and internal atomi…
Tunable SSH model in ferromagnetic systems
Chi-Ho Cheung, Jinyu Zou
It is well known that the topology of Su-Schrieffer-Heeger(SSH) model, which belongs to AIII symmetry class, is protected by chiral symmetry. In this article, instead of chiral sym…
Systematic analysis for triple points in all magnetic symmorphic systems and symmetry-allowed coexistence of Dirac points and triple points
Chi-Ho Cheung, R. C. Xiao, Ming-Chien Hsu +3
Similar to Weyl fermions, a recently discovered topological fermion "triple point" can be generated from the splitting of Dirac fermion while the system has inversion symmetry (IS)…
Inversion symmetry breaking induced triply degenerate points in orderly arranged PtSeTe family materials
R. C. Xiao, C. H. Cheung, P. L. Gong +3
paths exactly with symmetry allow to find triply degenerate points (TDPs) in band structures. The paths that host the type-II Dirac points in PtSe family materials…
Inducing 3-component fermions in centrosymmetric system by breaking TRS
Chi-Ho Cheung, R. C. Xiao, Ming-Chien Hsu +3
Recent researches show that by breaking inversion symmetry Dirac fermions can split into new fermions with 3-component. In this article, we demonstrate that Dirac fermions can also…