50 citations · 379 across the 27 of their papers we have counts for
8 papers · 1 filter
New class of 3D topological insulator in double perovskite
Shu-Ting Pi, Hui Wang, Jeongwoo Kim +3
We predict a new class of three-dimensional topological insulators (TIs) in which the spin-orbit coupling (SOC) can more effectively generate a large band gap at point. The ban…
Friedel oscillation near a van Hove singularity in two-dimensional Dirac materials
Chi-Ken Lu
We consider Friedel oscillation in the two-dimensional Dirac materials when Fermi level is near the van Hove singularity. Twisted graphene bilayer and the surface state of topologi…
Probing Layer Localization in Twisted Graphene Bilayers via Cyclotron Resonance
Chi-Ken Lu, H. A. Fertig
Electron wavefunctions in twisted bilayer graphene may have a strong single layer character or be intrinsically delocalized between layers, with their nature often determined by ho…
Zero modes of the generalized fermion-vortex system in magnetic field
Chi-Ken Lu, Babak Seradjeh
We show that Dirac fermions moving in two spatial dimensions with a generalized dispersion , subject to an external magnetic field and coupled to a complex scalar field…
Magnetic Breakdown in Twisted Bilayer Graphene
Chi-Ken Lu, H. A. Fertig
We consider magnetic breakdown in twisted bilayer graphene where electrons may hop between semiclassical -space trajectories in different layers. These trajectories within a dou…
Supersymmetric Runge-Lenz-Pauli vector for Dirac vortex in topological insulators and graphene
Chi-Ken Lu, Igor F. Herbut
The Dirac mass-vortex at the surface of a topological insulator or in graphene is considered. Within the linear approximation for the vortex amplitude's radial dependence, the spec…