111 citations · 310 across the 11 of their papers we have counts for
8 papers · 1 filter
Topological Surface-plasmon-polaritons on Corrugated Metal-dielectric Surfaces
Thomas Benjamin Smith, Coskun Kocabas, Alessandro Principi
We study topological surface-plasmon-polaritons at optical frequencies in diffraction gratings formed by bipartite corrugated metal-dielectric gratings. To do so we implement the t…
Emergent Non-Hermitian Edge Polarisation in an Hermitian Tight-binding Model
Thomas Benjamin Smith, Alessandro Principi
We study a bipartite Kronig-Penney model with negative Dirac-delta potentials that may be used, amongst other models, to interpret plasmon propagation in nanoparticle arrays. Such…
A Bipartite Kronig-Penney Model with Dirac Potential Scatterers
Thomas Benjamin Smith, Alessandro Principi
Here we present a simple extension to the age-old Kronig-Penney model, which is made to be bipartite by varying either the scatterer separations or the potential heights. In doing…
Breakdown of the Wiedemann-Franz law in AB-stacked bilayer graphene
Mohammad Zarenia, Giovanni Vignale, Thomas Benjamin Smith +1
We present a simple theory of thermoelectric transport in bilayer graphene and report our results for the electrical resistivity, the thermal resistivity, the Seebeck coefficient,…
Edge modes and Fabry-Perot Plasmonic Resonances in anomalous-Hall Thin Films
Thomas Benjamin Smith, Iacopo Torre, Alessandro Principi
We study plasmon propagation on a metallic two-dimensional surface partially coated with a thin film of anomalous-Hall material. The resulting three regions, separated by two sharp…
Fast spin exchange between two distant quantum dots
Filip K. Malinowski, Frederico Martins, Thomas B. Smith +8
The Heisenberg exchange interaction between neighboring quantum dots allows precise voltage control over spin dynamics, due to the ability to precisely control the overlap of orbit…
Enhanced photoenergy harvesting and extreme Thomson effect in hydrodynamic electronic systems
Trond I. Andersen, Thomas B. Smith, Alessandro Principi
The thermoelectric (TE) properties of a material are dramatically altered when electron-electron interactions become the dominant scattering mechanism. In the degenerate hydrodynam…
Spin of a multielectron quantum dot and its interaction with a neighboring electron
Filip K. Malinowski, Frederico Martins, Thomas B. Smith +8
We investigate the spin of a multielectron GaAs quantum dot in a sequence of nine charge occupancies, by exchange coupling the multielectron dot to a neighboring two-electron doubl…