Coherent approach to transport and noise in double-barrier resonant diodes
Autor(a) principal: | |
---|---|
Data de Publicação: | 2004 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.1/1186 |
Resumo: | We implement a quantum approach which includes long range Coulomb interaction and investigate current voltage characteristics and shot noise in double-barrier resonant diodes. The theory applies to the region of low applied voltages up to the region of the current peak and considers the wide temperature range from zero to room temperature. The shape of the current voltage characteristic is well reproduced and we confirm that even in the presence of Coulomb interaction the shot noise can be suppressed with a Fano factor well below the value of 0.5. This feature can be an indication of coherent tunneling since the standard sequential tunneling predicts in general a Fano factor equal to or greater than the value 0.5. This giant suppression is a consequence of Pauli principle as well as long range Coulomb interaction. The theory generalizes previous findings and is compared with experiments. |
id |
RCAP_b35da9d9dcdfaec7f41975f985b24dc2 |
---|---|
oai_identifier_str |
oai:sapientia.ualg.pt:10400.1/1186 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Coherent approach to transport and noise in double-barrier resonant diodesResonant tunneling diodeWe implement a quantum approach which includes long range Coulomb interaction and investigate current voltage characteristics and shot noise in double-barrier resonant diodes. The theory applies to the region of low applied voltages up to the region of the current peak and considers the wide temperature range from zero to room temperature. The shape of the current voltage characteristic is well reproduced and we confirm that even in the presence of Coulomb interaction the shot noise can be suppressed with a Fano factor well below the value of 0.5. This feature can be an indication of coherent tunneling since the standard sequential tunneling predicts in general a Fano factor equal to or greater than the value 0.5. This giant suppression is a consequence of Pauli principle as well as long range Coulomb interaction. The theory generalizes previous findings and is compared with experiments.SapientiaAleshkin, V. YaReggiani, L.Alkeev, N. V.Lyubchenko, V. E.Ironside, C. N.Figueiredo, J. M. L.Stanley, C. R.2012-05-31T18:49:33Z20042012-05-11T12:43:03Z2004-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.1/1186engAleshkin, V.; Reggiani, L.; Alkeev, N.; Lyubchenko, V.; Ironside, C.; Figueiredo, J.; Stanley, C.Coherent approach to transport and noise in double-barrier resonant diodes, Physical Review B, 70, 11, 1153211-11532113, 2004.1098-0121AUT: JLO01539;info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-24T10:12:11Zoai:sapientia.ualg.pt:10400.1/1186Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:55:23.987051Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Coherent approach to transport and noise in double-barrier resonant diodes |
title |
Coherent approach to transport and noise in double-barrier resonant diodes |
spellingShingle |
Coherent approach to transport and noise in double-barrier resonant diodes Aleshkin, V. Ya Resonant tunneling diode |
title_short |
Coherent approach to transport and noise in double-barrier resonant diodes |
title_full |
Coherent approach to transport and noise in double-barrier resonant diodes |
title_fullStr |
Coherent approach to transport and noise in double-barrier resonant diodes |
title_full_unstemmed |
Coherent approach to transport and noise in double-barrier resonant diodes |
title_sort |
Coherent approach to transport and noise in double-barrier resonant diodes |
author |
Aleshkin, V. Ya |
author_facet |
Aleshkin, V. Ya Reggiani, L. Alkeev, N. V. Lyubchenko, V. E. Ironside, C. N. Figueiredo, J. M. L. Stanley, C. R. |
author_role |
author |
author2 |
Reggiani, L. Alkeev, N. V. Lyubchenko, V. E. Ironside, C. N. Figueiredo, J. M. L. Stanley, C. R. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Sapientia |
dc.contributor.author.fl_str_mv |
Aleshkin, V. Ya Reggiani, L. Alkeev, N. V. Lyubchenko, V. E. Ironside, C. N. Figueiredo, J. M. L. Stanley, C. R. |
dc.subject.por.fl_str_mv |
Resonant tunneling diode |
topic |
Resonant tunneling diode |
description |
We implement a quantum approach which includes long range Coulomb interaction and investigate current voltage characteristics and shot noise in double-barrier resonant diodes. The theory applies to the region of low applied voltages up to the region of the current peak and considers the wide temperature range from zero to room temperature. The shape of the current voltage characteristic is well reproduced and we confirm that even in the presence of Coulomb interaction the shot noise can be suppressed with a Fano factor well below the value of 0.5. This feature can be an indication of coherent tunneling since the standard sequential tunneling predicts in general a Fano factor equal to or greater than the value 0.5. This giant suppression is a consequence of Pauli principle as well as long range Coulomb interaction. The theory generalizes previous findings and is compared with experiments. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004 2004-01-01T00:00:00Z 2012-05-31T18:49:33Z 2012-05-11T12:43:03Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.1/1186 |
url |
http://hdl.handle.net/10400.1/1186 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Aleshkin, V.; Reggiani, L.; Alkeev, N.; Lyubchenko, V.; Ironside, C.; Figueiredo, J.; Stanley, C.Coherent approach to transport and noise in double-barrier resonant diodes, Physical Review B, 70, 11, 1153211-11532113, 2004. 1098-0121 AUT: JLO01539; |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799133156073275392 |