217 citations · 919 across the 24 of their papers we have counts for
6 papers · 1 filter
Deformation Potentials and Electron-Phonon Coupling in Silicon Nanowires
F. Murphy-Armando, G. Fagas, J. C. Greer
The role of reduced dimensionality and of the surface on electron-phonon (e-ph) coupling in silicon nanowires is determined from first principles. Surface termination and chemistry…
Ballistic Conductance in Oxidized Si Nanowires
Giorgos Fagas, James C. Greer
The influence of local oxidation in silicon nanowires on hole transport, and hence the effect of varying the oxidation state of silicon atoms at the wire surface, is studied using…
Silicon nanowire band gap modification
Michael Nolan, Sean O'Callaghan, Giorgos Fagas +2
Band gap modification for small-diameter (1 nm) silicon nanowires resulting from the use of different species for surface termination is investigated by density functional theory c…
Tunnelling in alkanes anchored to gold electrodes via amine end groups
Giorgos Fagas, James C. Greer
For investigation of electron transport on the nanoscale, a system possessing a simple to interpret electronic structure is composed of alkane chains bridging two electrodes via en…
Independent particle descriptions of tunneling from a many-body perspective
Giorgos Fagas, Paul Delaney, James C. Greer
Currents across thin insulators are commonly taken as single electrons moving across classically forbidden regions; this independent particle picture is well-known to describe most…
Complex-band structure: a method to determine the off-resonant electron transport in oligomers
Giorgos Fagas, Agapi Kambili, Marcus Elstner
We validate that off-resonant electron transport across {\it ultra-short} oligomer molecular junctions is characterised by a conductance which decays exponentially with length, and…