161 citations · 749 across the 15 of their papers we have counts for
15 papers
Chiral plasmons with twisted atomic bilayers
Xiao Lin, Zifei Liu, Tobias Stauber +5
Van der Waals heterostructures of atomically thin layers with rotational misalignments, such as twisted bilayer graphene, feature interesting structural moiré superlattices. Due to…
Change of chirality at magic angles of twisted bilayer graphene
T. Stauber, J. González, G. Gómez-Santos
We derive a simple formula for the real-space chirality of twisted bilayer graphene that can be related to the cross-product of its sheet currents. This quantity shows well-defined…
Non-local quantum effects in plasmons of graphene superlattices
Luis Brey, T. Stauber, L. Martín-Moreno +1
By using a non-local, quantum mechanical response function we study graphene plasmons in a one-dimensional superlattice (SL) potential . The SL introduces a quantum…
Emergent magnetic texture in driven twisted bilayer graphene
D. A. Bahamon, G. Gómez-Santos, T. Stauber
The transport properties of a twisted bilayer graphene barrier are investigated for various twist angles. Remarkably, for small twist angles around the magic angle $θ_m \sim 1.05^{…
Unidirectional plasmonic edge modes on general two-dimensional materials
T. Stauber, A. Nemilentsau, T. Low +1
We investigate the field and spin-momentum coupling of edge plasmons hosted by general two-dimensional materials and identify sweet spots depending on the polarisation plane, ellip…
Linear response of twisted bilayer graphene: continuum vs. tight-binding models
T. Stauber, T. Low, G. Gómez-Santos
We present a linear response calculation for twisted bilayer graphene. The calculation is performed for both the continuum and tight-binding models, with the aim of assessing the v…
Inventory Management for High-Frequency Trading with Imperfect Competition
Sebastian Herrmann, Johannes Muhle-Karbe, Dapeng Shang +1
We study Nash equilibria for inventory-averse high-frequency traders (HFTs), who trade to exploit information about future price changes. For discrete trading rounds, the HFTs' opt…
Orbital magnetic susceptibility of graphene and MoS2
Ángel Gutiérrez-Rubio, Tobias Stauber, Guillermo Gómez-Santos +2
We calculate the orbital magnetic susceptibility for an 8-band tight-binding model of gapless and gapped graphene using Green's functions. Analogously, we study…
Spin-charge separation of plasmonic excitations in thin topological insulators
T. Stauber, G. Gómez-Santos, L. Brey
We discuss plasmonic excitations in a thin slab of a topological insulators. In the limit of no hybridization of the surface states and same electronic density of the two layers, t…
Plasmons in layered structures including graphene
T. Stauber, G. Gómez-Santos
We investigate the optical properties of layered structures with graphene at the interface for arbitrary linear polarization at finite temperature including full retardation by wor…
Graphene plasmons and retardation: strong light-matter coupling
G. Gómez-Santos, T. Stauber
We study the retardation regime of doped graphene plasmons, given by the nominal crossing of the unretarded plasmon and light-cone. In addition to modifications in the plasmon disp…
Plasmons and near-field amplification in double-layer graphene
T. Stauber, G. Gómez-Santos
We study the optical properties of double-layer graphene for linearly polarized evanescent modes and discuss the in-phase and out-of-phase plasmon modes for both, longitudinal and…
Fluorescence quenching in graphene: a fundamental ruler and evidence for transverse plasmons
G. Gómez-Santos, T. Stauber
Graphene's fluorescence quenching is studied as a function of distance. Transverse decay channels, full retardation and graphene-field coupling to all orders are included, extendin…
Dynamical current-current correlation of the hexagonal lattice and graphene
T. Stauber, G. Gómez-Santos
We discuss the dynamical current-current correlation function of the hexagonal lattice using a local current operator defined on a continuum-replica model of the original lattice m…
Thermal van der Waals Interaction between Graphene Layers
G. Gómez-Santos
The van de Waals interaction between two graphene sheets is studied at finite temperatures. Graphene's thermal length controls the force versus distance $…