Loading...
Please wait, while we are loading the content...
Similar Documents
Excitonic properties of armchair graphene nanoribbons from exact diagonalization of the Hubbard model
| Content Provider | Semantic Scholar |
|---|---|
| Author | Alfonsi, Jessica Meneghetti, Moreno |
| Copyright Year | 2012 |
| Abstract | We report on excitonic spectra of armchair graphene nanoribbons (AGNRs) obtained from a full many-body exact diagonalization of the Hubbard model within low and intermediate correlation regimes and with a complete characterization of the spin multiplicity of the calculated eigenstates. Our results allow us to group these systems into three different families according to the sequence of the oneand two-photon allowed states and the magnitude of the respective optical oscillator strengths within the investigated correlation regime. The oscillator strengths for the one-photon allowed transitions are found to be lower than those obtained previously for zigzag semiconducting single-walled carbon nanotubes, pointing out a qualitatively different photophysical behaviour of AGNRs. S Online supplementary data available from stacks.iop.org/NJP/14/053047/ mmedia 1 Author to whom any correspondence should be addressed. New Journal of Physics 14 (2012) 053047 1367-2630/12/053047+10$33.00 © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.hpc.cineca.it/sites/default/files/1367-2630_14_5_053047.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |