47 citations · 276 across the 13 of their papers we have counts for
13 papers
Ferroelectricity in oxygen-terminated 2D carbides of lanthanide elements
Lin Han, Wencong Sun, Pingwei Liu +3
We investigate the properties of oxygen-functionalized carbides of lanthanide elements with the composition M2CO2 (M=Gd, Tb,Dy) that form two-dimensional (2D) structures. Our ab in…
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 $…
Moiré effects in graphene--hBN heterostructures
Yongping Du, Ning Xu, Xianqing Lin +1
Encapsulating graphene in hexagonal Boron Nitride has several advantages: the highest mobilities reported to date are achieved in this way, and precise nanostructuring of graphene…
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…
Periodically Gated Bilayer Graphene as an Electronic Metamaterial
Xianqing Lin, David Tomanek
We study ballistic transport in periodically gated bilayer graphene as a candidate for a 2D electronic metamaterial. Our calculations use the equilibrium Green function formalism a…
Is Twisted Bilayer Graphene Stable under Shear?
Xianqing Lin, Dan Liu, David Tománek
In twisted bilayer graphene (TBLG), extremely small deviations from the magic twist angle change its electronic structure near the Fermi level drastically,…
Minimum model for the electronic structure of twisted bilayer graphene and related structures
Xianqing Lin, David Tománek
We introduce a minimum tight-binding model with only three parameters extracted from graphene and untwisted bilayer graphene. This model reproduces quantitatively the electronic st…
Microscopic Mechanism of the Helix-to-Layer Transformation in Elemental Group VI Solids
Dan Liu, Xianqing Lin, David Tomanek
We study the conversion of bulk Se and Te, consisting of intertwined a helices, to structurally very dissimilar, atomically thin two-dimensional (2D) layers of these elements. Our…
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…