45 citations · 135 across the 10 of their papers we have counts for
7 papers · 1 filter
A general relation between stacking order and Chern index: a topological map of minimally twisted bilayer graphene
S. Theil, M. Fleischmann, R. Gupta +4
We derive a general relation between the stacking vector describing the relative shift of two layers of bilayer graphene and the Chern index. We find $C = ν- \text{sign}\…
Moiré ordered current loops in the graphene twist bilayer
D. Weckbecker, M. Fleischmann, R. Gupta +6
While a typical material exhibits field induced currents only at the boundary, a uniform out-of-plane magnetic field applied to two mutually rotated layers of graphene is shown to…
Moiré quantum well states in tiny angle two dimensional semi-conductors
M. Fleischmann, R. Gupta, S. Sharma +1
The valence band edge in tiny angle twist bilayers of MoS and phosphorene is shown to consist of highly localized energy levels created by a `moiré quantum well', i.e. trapped…
Straintronics beyond homogeneous deformation
R. Gupta, F. Rost, M. Fleischmann +2
We present a continuum theory of graphene treating on an equal footing both homogeneous Cauchy-Born (CB) deformation, as well as the microscopic degrees of freedom associated with…
Moiré edge states in twisted graphene nanoribbons
M. Fleischmann, R. Gupta, D. Weckbecker +4
The edge physics of graphene based systems is well known to be highly sensitive to the atomic structure at the boundary, with localized zero mode edge states found only on the zigz…
Electron-phonon scattering and in-plane electric conductivity in twisted bilayer graphene
N. Ray, M. Fleischmann, D. Weckbecker +3
We have surveyed the in-plane transport properties of the graphene twist bilayer using (i) a low-energy effective Hamiltonian for the underlying electronic structure, (ii) an isotr…
Going beyond k.p theory: a general method for obtaining effective Hamiltonians in both high and low symmetry situations
N. Ray, F. Rost, D. Weckbecker +5
We provide a method for the generation of effective continuum Hamiltonians that goes beyond the well known k.p method in being equally effective in both high, and low (or no) symme…