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7 papers · 2 filters
Finite momentum condensation in a pumped microcavity
R. T. Brierley, P. R. Eastham
We calculate the absorption spectra of a semiconductor microcavity into which a non-equilibrium exciton population has been pumped. We predict strong peaks in the spectrum correspo…
Impurity segregation in graphene nanoribbons
S. R. Power, V. M. de Menezes, S. B. Fagan +1
The electronic properties of low-dimensional materials can be engineered by doping, but in the case of graphene nanoribbons (GNR) the proximity of two symmetry-breaking edges intro…
The magnetism of wurtzite CoO nanoclusters
Ruairi Hanafin, Thomas Archer, Stefano Sanvito
The possibility that the apparent room temperature ferromagnetism, often measured in Co-doped ZnO, is due to uncompensated spins at the surface of wurtzite CoO nanoclusters is inve…
Upper bound for the conductivity of nanotube networks
Luiz F. C. Pereira, C. G. Rocha, A. Latgé +2
Films composed of nanotube networks have their conductivities regulated by the junction resistances formed between tubes. Conductivity values are enhanced by lower junction resista…
Electron transport across electrically switchable magnetic molecules
Sujeet K. Shukla, Stefano Sanvito
We investigate the electron transport properties of a model magnetic molecule formed by two magnetic centers whose exchange coupling can be altered with a longitudinal electric fie…
Electronic transport calculations for rough interfaces in Al, Cu, Ag, and Au
M. M. Fadlallah, C. Schuster, U. Schwingenschloegl +2
We present results of electronic structure and transport calculations for metallic interfaces, based on density functional theory and the non-equilibrium Green's functions method.…