34 citations · 143 across the 29 of their papers we have counts for
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Topological phase rectification via Aharonov-Bohm interference in a Majorana--quantum-dot interferometer
Jia Liu, Hao-Yuan Yang, Yuan Hong +5
We propose and theoretically investigate a topological superconducting rectifier based on a quantum-dot--Majorana interferometer. The Aharonov-Bohm phase, controlled by a magnetic…
Resonant-impurity scanning tunneling spectroscopy in altermagnets: dual Fano resonance and Landau-quantization-induced nodal spin contrast
Yuan Hong, Zhigang Wang, Zhen-Guo Fu +4
Using a Green's-function formalism, we study the spin-resolved local spectral function of a resonant impurity coupled to a two-dimensional % -wave altermagnetic substrate. It is…
Selective Trapping of Hexagonally Warped Topological Surface States in a Triangular Quantum Corral
Mu Chen, Yeping Jiang, Junping Peng +10
The surface of a three-dimensional topological insulator (TI) hosts two-dimensional massless Dirac fermions (DFs), the gapless and spin-helical nature of which yields many exotic p…
Anisotropic Fabry-Pérot resonant states confined within nano-steps on the topological insulator surface
Zhen-Guo Fu, Ping Zhang, Mu Chen +3
The peculiar nature of topological surface states, such as absence of backscattering, weak anti-localization, and quantum anomalous Hall effect, has been demonstrated mainly in bul…
Direct observation of quantum confinement of massless Dirac fermions in a topological insulator
Mu Chen, Zhen-Guo Fu, Jun-Ping Peng +9
Since the discovery of topological insulators (TIs)1,2, the peculiar nature of their chiral surface states has been experimentally demonstrated both in bulk and in film materials w…
The effect of the warping term on the fractional quantum Hall states in topological insulators
Fawei Zheng, Zhigang Wang, Zhen-Guo Fu +1
The warping effect on the fractional quantum Hall (FQH) states in topological insulators is studied theoretically. Based on the perturbed wavefunctions, which include contributions…
Fractional quantum Hall effect of topological surface states under a strong tilted magnetic field
Fawei Zheng, Zhigang Wang, Zhen-Guo Fu +1
The fractional quantum Hall effect (FQHE) of topological surface-state particles under a tilted strong magnetic field is theoretically studied by using the exact diagonalization me…
Pseudo-magnetoexcitons in strained graphene bilayers without external magnetic fields
Zhigang Wang, Zhen-Guo Fu, Fawei Zheng +1
The structural and electronic properties of graphene leads its charge carriers to behave like relativistic particles, which is described by a Dirac-like Hamiltonian. Since graphene…
Theory of multiple magnetic scattering for quasiparticles on a gapless topological insulator surface
Zhen-Guo Fu, Ping Zhang, Zhigang Wang +2
We develop a general low-energy multiple-scattering partial-wave theory for gapless topological insulator (TI) surfaces in the presence of magnetic impurities. As applications, we…
Superfluidity and effective mass of magnetoexcitons in topological insulator bilayers: Effect of inter-Landau-level Coulomb interaction
Zhigang Wang, Zhen-Guo Fu, Ping Zhang
The effective mass and superfluidity-normal phase transition temperature of magnetoexcitons in topological insulator bilayers are theoretically investigated. The intra-Landau-level…
Magnetoexcitons and optical absorption of bilayer-structured topological insulators
Zhigang Wang, Zhen-Guo Fu, Ping Zhang
Optical absorption properties of magnetoexcitons in topological insulator bilayers under a strong magnetic field are theoretically studied. A general analytical formula of optical…
Probing crossover from analogous weak antilocalization to localization by an Aharonov-Bohm interferometer on topological insulator surface
Zhen-Guo Fu, Ping Zhang, Shu-Shen Li
We propose a scanning tunneling microscopy Aharonov-Bohm (AB) interferometer on the surface of a topological insulator (TI) to probe the crossover from analogous weak antilocalizat…
Multiple scattering theory of quasiparticles on a topological insulator surface
Zhen-Guo Fu, Ping Zhang, Zhigang Wang +1
A general partial-wave multiple scattering theory for scattering from cylindrically symmetric potentials on a topological insulator (TI) surface is developed. As an application, th…
Excitonic condensation for the surface states of topological insulator bilayers
Zhigang Wang, Ningning Hao, Zhen-Guo Fu +1
We propose a generic topological insulator bilayer (TIB) system to study the excitonic condensation with self-consistent mean-field (SCMF) theory. We show that the TIB system prese…
Aharonov-Bohm oscillations in the local density of topological surface states
Zhen-Guo Fu, Ping Zhang, Shu-Shen Li
We study Aharonov-Bohm (AB) oscillations in the local density of states (LDOS) for topological insulator (TI) and conventional metal Au(111) surfaces with spin-orbit interaction, w…
Quantum Corrals and Quantum Mirages on the Surface of a Topological Insulator
Zhen-Guo Fu, Ping Zhang, Zhigang Wang +1
We study quantum corrals on the surface of a topological insulator (TI). Different resonance states induced by nonmagnetic (NM), antiferromagnetic (AFM), and ferromagnetic (FM) cor…
Magnetic quantum oscillations of the topological insulator surface states
Zhigang Wang, Zhen-Guo Fu, Shuang-Xi Wang +1
We study quantum oscillations of the magnetization in BiSe(111) surface system in the presence of a perpendicular magnetic field. The combined spin-chiral Dirac cone an…
Orbital magnetization of the electron gas on a two-dimensional kagome lattice under a perpendicular magnetic field
Zhigang Wang, Zi-Gang Yuan, Zhen-Guo Fu +2
The orbital magnetization of the electron gas on a two-dimensional kagome lattice under a perpendicular magnetic field is theoretically investigated. The interplay between the latt…