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Gate electrostatics and quantum capacitance in ballistic graphene devices
José M. Caridad, Stephen R. Power, Artsem A. Shylau +3
We experimentally investigate the charge induction mechanism across gated, narrow, ballistic graphene devices with different degrees of edge disorder. By using magnetoconductance m…
Symmetry of superconducting correlations in displaced bilayers of graphene
Mohammad Alidoust, Morten Willatzen, Antti-Pekka Jauho
Using a Green's function approach, we study phonon-mediated superconducting pairing symmetries that may arise in bilayer graphene where the monolayers are displaced in-plane with r…
Signatures of adatom effects in the quasiparticle spectrum of Li-doped graphene
Kristen Kaasbjerg, Antti-Pekka Jauho
We study the spectral function and quasiparticle scattering in Li-decorated graphene (Li@graphene) with an atomistic -matrix formalism and uncover adatom-induced spectral effect…
Control of superconducting pairing symmetries in monolayer black phosphorus
Mohammad Alidoust, Morten Willatzen, Antti-Pekka Jauho
Motivated by recent experimental progress, we study the effect of mechanical deformations on the superconducting pairing symmetries in monolayer black phosphorus (MBP). Starting wi…
Fraunhofer response and supercurrent spin switching in black phosphorus with strain and disorder
Mohammad Alidoust, Morten Willatzen, Antti-Pekka Jauho
We develop theory models for both ballistic and disordered superconducting monolayer black phosphorus devices in the presence of magnetic exchange field and strain. The ballistic c…
Probing the nanoscale origin of strain and doping in graphene-hBN heterostructures
Tom Vincent, Vishal Panchal, Tim Booth +4
We use confocal Raman microscopy and modified vector analysis methods to investigate the nanoscale origin of strain and carrier concentration in exfoliated graphene-hexagonal boron…
Electronic and transport properties of kinked graphene
Jesper Toft Rasmussen, Tue Gunst, Peter Bøggild +2
Local curvature, or bending, of a graphene sheet is known to increase the chemical reactivity presenting an opportunity for templated chemical functionalization. Using first princi…
Heat conductance is strongly anisotropic for pristine silicon nanowires
Troels Markussen, Antti-Pekka Jauho, Mads Brandbyge
We compute atomistically the heat conductance for ultra-thin pristine silicon nanowires (SiNWs) with diameters ranging from 1 to 5 nm. The room temperature thermal conductance is f…
Ab initio study of spin-dependent transport in carbon nanotubes with iron and vanadium adatoms
Joachim A. Fürst, Mads Brandbyge, Antti-Pekka Jauho +1
We present an ab initio study of spin dependent transport in armchair carbon nanotubes with transition metal adsorbates, iron or vanadium. We neglect the effect of tube curvature a…