Localized Spins on Graphene
| dc.creator | Cornaglia, P. S. | |
| dc.creator | Usaj, Gonzalo | |
| dc.creator | Balseiro, C. A. | |
| dc.date | 2008-10-22 | |
| dc.date | 2008-10-24 | |
| dc.date.accessioned | 2026-07-07T12:34:18Z | |
| dc.date.available | 2026-07-07T12:34:18Z | |
| dc.description | The problem of a magnetic impurity, atomic or molecular, absorbed on top of a carbon atom in otherwise clean graphene is studied using the numerical renormalization group. The spectral, thermodynamic, and scattering properties of the impurity are described in detail. In the presence of a small magnetic field, the low energy electronic features of graphene make possible to inject spin polarized currents through the impurity using a scanning tunneling microscope (STM). Furthermore, the impurity scattering becomes strongly spin dependent and for a finite impurity concentration it leads to spin polarized bulk currents and a large magnetoresistance. In gated graphene the impurity spin is Kondo screened at low temperatures. However, at temperatures larger than the Kondo temperature, the anomalous magnetotransport properties are recovered. | |
| dc.description | 4+ pages, 4 figures. Added references | |
| dc.identifier | https://arxiv.org/abs/0810.4140 | |
| dc.identifier | http://arxiv.org/abs/0810.4140 | |
| dc.identifier | Phys. Rev. Lett. 102, 046801 (2009) | |
| dc.identifier | doi:10.1103/PhysRevLett.102.046801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/217381 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Localized Spins on Graphene | |
| dc.type | text |