Density of states of disordered graphene
| dc.creator | Hu, Ben Yu-Kuang | |
| dc.creator | Hwang, E. H. | |
| dc.creator | Sarma, S. Das | |
| dc.date | 2008-05-14 | |
| dc.date | 2008-10-18 | |
| dc.date.accessioned | 2026-07-07T10:10:46Z | |
| dc.date.available | 2026-07-07T10:10:46Z | |
| dc.description | We calculate the average single particle density of states in graphene with disorder due to impurity potentials. For unscreened short-ranged impurities, we use the non-self-consistent and self-consistent Born and $T$-matrix approximations to obtain the self-energy. Among these, only the self-consistent $T$-matrix approximation gives a non-zero density of states at the Dirac point. The density of states at the Dirac point is non-analytic in the impurity potential. For screened short-ranged and charged long-range impurity potentials, the density of states near the Dirac point typically increases in the presence of impurities, compared to that of the pure system. | |
| dc.description | 8 pages, 5 figures | |
| dc.identifier | https://arxiv.org/abs/0805.2148 | |
| dc.identifier | http://arxiv.org/abs/0805.2148 | |
| dc.identifier | Phys. Rev. B 78, 165411 (2008) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/171688 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Density of states of disordered graphene | |
| dc.type | text |