40 citations · 178 across the 9 of their papers we have counts for
9 papers
Collective excitations of the Chern-insulator states in commensurate double moiré superlattices of twisted bilayer graphene on hexagonal boron nitride
Xianqing Lin, Quan Zhou, Cheng Li +1
We study the collective excitation modes of the Chern insulator states in magic-angle twisted bilayer graphene aligned with hexagonal boron nitride (TBG/BN) at odd integer fillings…
Energetic stability and spatial inhomogeneity in the local electronic structure of relaxed twisted trilayer graphene
Xianqing Lin, Cheng Li, Kelu Su +1
We study the energetic stability and the local electronic structure of the general twisted trilayer graphene (TTG) with the top and bottom layers rotated with respect to the middle…
Emergence of intrinsically isolated flat bands and their topology in fully relaxed twisted multi-layer graphene
Xianqing Lin, Haotian Zhu, Jun Ni
We study the electronic structure and band topology of fully relaxed twisted multi-layer graphene (TMLG). Isolated flat bands emerge in TMLG with the number of layers [ with $…
Misalignment instability in magic-angle twisted bilayer graphene on hexagonal boron nitride
Xianqing Lin, Kelu Su, Jun Ni
We study the stability and electronic structure of magic-angle twisted bilayer graphene on the hexagonal boron nitride (TBG/BN). Full relaxation has been performed for commensurate…
Symmetry breaking in the double moiré superlattices of relaxed twisted bilayer graphene on hexagonal boron nitride
Xianqing Lin, Jun Ni
We study the atomic and electronic structures of the commensurate double moiré superlattices in fully relaxed twisted bilayer graphene (TBG) nearly aligned with the hexagonal boron…
Pressure induced gap modulation and topological transitions in twisted bilayer and double bilayer graphene
Xianqing Lin, Haotian Zhu, Jun Ni
We study the electronic and topological properties of fully relaxed twisted bilayer (TBG) and double bilayer (TDBG) graphene under perpendicular pressure. An approach has been prop…
Topological p+ip superconductivity in doped graphene-like single-sheet materials BC
Xi Chen, Yugui Yao, Hong Yao +2
We theoretically study exotic superconducting phases in graphenelike single-sheet material BC doped to its type-II Van Hove singularity whose saddle point momenta are {\it not}…
Flat Bands near Fermi Level of Topological Line Defects on Graphite
Lei Feng, Xianqing Lin, Lan Meng +3
Flat bands play an important role in the study of strongly correlated phenomena, such as ferromagnetism, superconductivity, and fractional quantum Hall effect. Here we report direc…
Weighing Super-Massive Black Holes with Narrow Fe K Line
Peng Jiang, Junxian Wang, Xinwen Shu
It has been suggested that the narrow cores of the Fe K emission lines in Active Galactic Nuclei (AGNs) are likely produced in the torus, the inner radius of which can be measur…