Interfacial confinement in core-shell nanowires due to high dielectric mismatch
Mesoscale and Nanoscale Physics
2012-09-13 v1 Materials Science
Computational Physics
Abstract
We theoretically investigate the role of the dielectric mismatch between materials on the energy levels and recombination energies of a core-shell nanowire. Our results demonstrate that when the dielectric constant of the core material is lower than that of the shell material, the self-image potential pushes the charge carriers towards the core-shell interface, in such a way that the ideal confinement model is no longer suitable. The effects of this interfacial confinement on the electronic properties of such wires, as well as on its response to applied magnetic fields, are discussed.
Keywords
Cite
@article{arxiv.1209.2701,
title = {Interfacial confinement in core-shell nanowires due to high dielectric mismatch},
author = {A. A. Sousa and T. A. S. Pereira and A. Chaves and J. S. de Sousa and G. A. Farias},
journal= {arXiv preprint arXiv:1209.2701},
year = {2012}
}
Comments
4 pages, 3 figures and 1 material Supplementary; Applied Physics Letters 2012