Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors

We present a theoretical investigation of shot-noise suppression due to long-range Coulomb interaction in nondegenerate diffusive conductors. Calculations make use of an ensemble Monte Carlo simulator selfconsistently coupled with a one-dimensional ~1D! Poisson solver. We analyze the noise in a ligh...

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Detalles Bibliográficos
Autores: González, T., Mateos López, Javier, Pardo, D., Bulashenko, Oleg, Reggiani, L. (Lino), 1941-
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1999
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/10910
Acceso en línea:https://hdl.handle.net/2445/10910
Access Level:acceso abierto
Palabra clave:Teoria del transport
Fenòmens mesoscòpics (Física)
Semiconductors
Soroll electrònic
Transport theory
Mesoscopic phenomena (Physics)
Electronic noise
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spelling Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductorsGonzález, T.Mateos López, JavierPardo, D.Bulashenko, OlegReggiani, L. (Lino), 1941-Teoria del transportFenòmens mesoscòpics (Física)SemiconductorsSoroll electrònicTransport theoryMesoscopic phenomena (Physics)SemiconductorsElectronic noiseWe present a theoretical investigation of shot-noise suppression due to long-range Coulomb interaction in nondegenerate diffusive conductors. Calculations make use of an ensemble Monte Carlo simulator selfconsistently coupled with a one-dimensional ~1D! Poisson solver. We analyze the noise in a lightly doped active region surrounded by two contacts acting as thermal reservoirs. By taking the doping of the injecting contacts and the applied voltage as variable parameters, the influence of elastic and inelastic scattering in the active region is investigated. The transition from ballistic to diffusive transport regimes under different contact injecting statistics is analyzed and discussed. Provided significant space-charge effects take place inside the active region, long-range Coulomb interaction is found to play an essential role in suppressing the shot noise at qU@k BT. In the elastic diffusive regime, momentum space dimensionality is found to modify the suppression factor g, which within numerical uncertainty takes values respectively of about 1/3, 1/2, and 0.7 in the 3D, 2D, and 1D cases. In the inelastic diffusive regime, shot noise is suppressed to the thermal value.The American Physical Society201020101999info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion10 p.application/pdfapplication/pdfhttps://hdl.handle.net/2445/10910Articles publicats en revistes (Física de la Matèria Condensada)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.60.2670Physical Review B, 1999, vol. 60, núm. 4, p. 2670-2679http://dx.doi.org/10.1103/PhysRevB.60.2670(c) The American Physical Society, 1999info:eu-repo/semantics/openAccessoai:recercat.cat:2445/109102026-05-29T05:05:01Z
dc.title.none.fl_str_mv Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
title Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
spellingShingle Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
González, T.
Teoria del transport
Fenòmens mesoscòpics (Física)
Semiconductors
Soroll electrònic
Transport theory
Mesoscopic phenomena (Physics)
Semiconductors
Electronic noise
title_short Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
title_full Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
title_fullStr Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
title_full_unstemmed Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
title_sort Microscopic analysis of shot-noise suppression in nondegenerate diffusive conductors
dc.creator.none.fl_str_mv González, T.
Mateos López, Javier
Pardo, D.
Bulashenko, Oleg
Reggiani, L. (Lino), 1941-
author González, T.
author_facet González, T.
Mateos López, Javier
Pardo, D.
Bulashenko, Oleg
Reggiani, L. (Lino), 1941-
author_role author
author2 Mateos López, Javier
Pardo, D.
Bulashenko, Oleg
Reggiani, L. (Lino), 1941-
author2_role author
author
author
author
dc.subject.none.fl_str_mv Teoria del transport
Fenòmens mesoscòpics (Física)
Semiconductors
Soroll electrònic
Transport theory
Mesoscopic phenomena (Physics)
Semiconductors
Electronic noise
topic Teoria del transport
Fenòmens mesoscòpics (Física)
Semiconductors
Soroll electrònic
Transport theory
Mesoscopic phenomena (Physics)
Semiconductors
Electronic noise
description We present a theoretical investigation of shot-noise suppression due to long-range Coulomb interaction in nondegenerate diffusive conductors. Calculations make use of an ensemble Monte Carlo simulator selfconsistently coupled with a one-dimensional ~1D! Poisson solver. We analyze the noise in a lightly doped active region surrounded by two contacts acting as thermal reservoirs. By taking the doping of the injecting contacts and the applied voltage as variable parameters, the influence of elastic and inelastic scattering in the active region is investigated. The transition from ballistic to diffusive transport regimes under different contact injecting statistics is analyzed and discussed. Provided significant space-charge effects take place inside the active region, long-range Coulomb interaction is found to play an essential role in suppressing the shot noise at qU@k BT. In the elastic diffusive regime, momentum space dimensionality is found to modify the suppression factor g, which within numerical uncertainty takes values respectively of about 1/3, 1/2, and 0.7 in the 3D, 2D, and 1D cases. In the inelastic diffusive regime, shot noise is suppressed to the thermal value.
publishDate 1999
dc.date.none.fl_str_mv 1999
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/10910
url https://hdl.handle.net/2445/10910
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevB.60.2670
Physical Review B, 1999, vol. 60, núm. 4, p. 2670-2679
http://dx.doi.org/10.1103/PhysRevB.60.2670
dc.rights.none.fl_str_mv (c) The American Physical Society, 1999
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 1999
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 10 p.
application/pdf
application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física de la Matèria Condensada)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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