Shot-noise suppression by Fermi and Coulomb correlations in ballistic conductors
| dc.creator | Bulashenko, O. M. | |
| dc.creator | Rubi, J. M. | |
| dc.date | 2000-06-30 | |
| dc.date | 2001-08-22 | |
| dc.date.accessioned | 2026-07-25T14:07:05Z | |
| dc.description | We investigate the injection of degenerate Fermi-Dirac electrons into a multimode ballistic conductor under the space-charge limited regime. The nonequilibrium current fluctuations were found to be suppressed by both Coulomb and Fermi correlations. We show that the Fermi shot-noise suppression factor is limited below by the value 2kT/epsilon_F, where T is the temperature and epsilon_F the Fermi energy of the injected electrons. The Coulomb noise suppression factor may attain much lower values epsilon_F/2qU, because of its dependence on the applied bias U >> kT/q. The asymptotic behaviour of the overall shot-noise suppression factor in a high degenerate limit was found to be kT/qU, independently of the material parameters. | |
| dc.description | 8 pages, 4 figures, minor changes, published version | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0006499 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0006499 | |
| dc.identifier | Phys. Rev. B 64, 045307 (2001) | |
| dc.identifier | doi:10.1103/PhysRevB.64.045307 | |
| dc.identifier.uri | https://dspace.dare.co.zw/handle/123456789/23206 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.title | Shot-noise suppression by Fermi and Coulomb correlations in ballistic conductors | |
| dc.type | text |