The Kondo effect in Bohm-Aharonov resonant tunneling devices

The Bohm-Aharonov effect in a mesoscopic ring containing a double-barrier structure in its upper part is investigated. The interference between electrons propagating along different sides of the ring is modified by the presence of a double barrier. A local Coulomb interaction, U, is included to desc...

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Guardado en:
Detalles Bibliográficos
Publicado: 1997
Materias:
Bohm-Aharonov effect
Kondo effect
Kondo resonance
Mesoscopic ring
Electric currents
Electron resonance
Fermi level
Magnetic field effects
Thermal effects
Abrikosov Suhl resonance
Bohm Aharonov effect
Coulomb interactions
Kondo temperature
Magnetic flux
Resonant tunneling devices
Electron tunneling
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v230-232_n_p478_Iglesias
http://hdl.handle.net/20.500.12110/paper_09214526_v230-232_n_p478_Iglesias
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_09214526_v230-232_n_p478_Iglesias
record_format dspace
spelling paper:paper_09214526_v230-232_n_p478_Iglesias2023-06-08T15:50:19Z The Kondo effect in Bohm-Aharonov resonant tunneling devices Bohm-Aharonov effect Kondo effect Kondo resonance Mesoscopic ring Electric currents Electron resonance Fermi level Magnetic field effects Thermal effects Abrikosov Suhl resonance Bohm Aharonov effect Coulomb interactions Kondo effect Kondo resonance Kondo temperature Magnetic flux Resonant tunneling devices Electron tunneling The Bohm-Aharonov effect in a mesoscopic ring containing a double-barrier structure in its upper part is investigated. The interference between electrons propagating along different sides of the ring is modified by the presence of a double barrier. A local Coulomb interaction, U, is included to describe the highly localized electrons at the well and an Abrikosov-Suhl (AS) resonance appears at low temperatures. So, in this energy range the current is flux dependent. Above the Kondo temperature TK the AS resonance disappears and the flux-independent behavior is recovered. The current is studied as a function of magnetic flux, gate potential and position of the Fermi level. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v230-232_n_p478_Iglesias http://hdl.handle.net/20.500.12110/paper_09214526_v230-232_n_p478_Iglesias
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Bohm-Aharonov effect
Kondo effect
Kondo resonance
Mesoscopic ring
Electric currents
Electron resonance
Fermi level
Magnetic field effects
Thermal effects
Abrikosov Suhl resonance
Bohm Aharonov effect
Coulomb interactions
Kondo effect
Kondo resonance
Kondo temperature
Magnetic flux
Resonant tunneling devices
Electron tunneling
spellingShingle Bohm-Aharonov effect
Kondo effect
Kondo resonance
Mesoscopic ring
Electric currents
Electron resonance
Fermi level
Magnetic field effects
Thermal effects
Abrikosov Suhl resonance
Bohm Aharonov effect
Coulomb interactions
Kondo effect
Kondo resonance
Kondo temperature
Magnetic flux
Resonant tunneling devices
Electron tunneling
The Kondo effect in Bohm-Aharonov resonant tunneling devices
topic_facet Bohm-Aharonov effect
Kondo effect
Kondo resonance
Mesoscopic ring
Electric currents
Electron resonance
Fermi level
Magnetic field effects
Thermal effects
Abrikosov Suhl resonance
Bohm Aharonov effect
Coulomb interactions
Kondo effect
Kondo resonance
Kondo temperature
Magnetic flux
Resonant tunneling devices
Electron tunneling
description The Bohm-Aharonov effect in a mesoscopic ring containing a double-barrier structure in its upper part is investigated. The interference between electrons propagating along different sides of the ring is modified by the presence of a double barrier. A local Coulomb interaction, U, is included to describe the highly localized electrons at the well and an Abrikosov-Suhl (AS) resonance appears at low temperatures. So, in this energy range the current is flux dependent. Above the Kondo temperature TK the AS resonance disappears and the flux-independent behavior is recovered. The current is studied as a function of magnetic flux, gate potential and position of the Fermi level.
title The Kondo effect in Bohm-Aharonov resonant tunneling devices
title_short The Kondo effect in Bohm-Aharonov resonant tunneling devices
title_full The Kondo effect in Bohm-Aharonov resonant tunneling devices
title_fullStr The Kondo effect in Bohm-Aharonov resonant tunneling devices
title_full_unstemmed The Kondo effect in Bohm-Aharonov resonant tunneling devices
title_sort kondo effect in bohm-aharonov resonant tunneling devices
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v230-232_n_p478_Iglesias
http://hdl.handle.net/20.500.12110/paper_09214526_v230-232_n_p478_Iglesias
_version_ 1768544325591891968

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