522 citations · 1k across the 23 of their papers we have counts for
8 papers · 1 filter
Volkov-Pankratov states in a 2d material: excited states of a structural soliton
S. Theil, R. Gupta, F. Wullschlaeger +3
We show that partial dislocations, defects that naturally arise in bilayer graphene, host an analogue of the mass inversion Volkov-Pankratov (VP) states, the spectrum of excited st…
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…
Dislocation and node states in bilayer graphene systems
D. Weckbecker, R. Gupta, F. Rost +2
We investigate the electronic structure of realistic partial dislocation networks in bilayer graphene that feature annihilating, wandering, and intersecting partial lines. We find…
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…