Bulashenko, OlegRubí Capaceti, José Miguel2010-01-252010-01-2520010163-1829https://hdl.handle.net/2445/10877We 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.7 p.application/pdfeng(c) The American Physical Society, 2001Estructura electrònicaPropietats elèctriquesSuperfícies (Física)Electronic structureSurfaces (Physics)Electric propertiesinfo:eu-repo/semantics/article514151info:eu-repo/semantics/openAccess