Regimes of correlated hopping via a two-site interacting chain
| dc.creator | Ballard, A. D. | |
| dc.creator | Raikh, M. E. | |
| dc.date | 2006-02-06 | |
| dc.date | 2006-10-24 | |
| dc.date.accessioned | 2026-07-07T07:01:33Z | |
| dc.date.available | 2026-07-07T07:01:33Z | |
| dc.description | Inelastic transport of electrons through a two-impurity chain is studied theoretically with account of intersite Coulomb interaction, U. Both limits of ohmic transport (at low bias) and strongly non-ohmic transport (at high bias) are considered. We demonstrate that correlations, induced by a finite U, in conjunction with conventional Hubbard correlations, give rise to a distinct transport regime, with current governed by two-electron hops. This regime realizes when a single-electron hop onto the chain and a single-electron hop out of the chain are both ``blocked'' due to the finite U, so that conventional correlated sequential transport is impossible. The regime of two-electron hops manifests itself in the form of an additional step in the current-voltage characteristics, I(V). | |
| dc.description | 10 pages, 6 figures; final version, minor changes | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0602145 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0602145 | |
| dc.identifier | Phys. Rev. B 74, 035117 (2006) | |
| dc.identifier | doi:10.1103/PhysRevB.74.035117 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/108306 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Regimes of correlated hopping via a two-site interacting chain | |
| dc.type | text |