Kondo effect on tunneling currents in a mesoscopic ring

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We study the effect of the Kondo resonance on the tunneling current oscillations in a mesoscopic ring with a quantum dot, threaded by an external magnetic flux. Two situations are considered: the isolated ring and the ring connected to two external contacts. The system is described by an Anderson im...

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Autores principales: Davidovich, M.A., Anda, E.V., Iglesias, J.R., Chiappe, G.
Formato: JOUR
Materias:
Coulomb blockade
Kondo effect
Mesoscopic systems
Tunneling
Electric currents
Electron tunneling
Low temperature properties
Magnetic field effects
Mathematical models
Semiconductor quantum dots
Bohm-Aharonov effect
Magnetic flux
Tunneling currents
Magnetic resonance
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03048853_v177-181_nPART1_p313_Davidovich
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03048853_v177-181_nPART1_p313_Davidovich
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spelling todo:paper_03048853_v177-181_nPART1_p313_Davidovich2023-10-03T15:21:03Z Kondo effect on tunneling currents in a mesoscopic ring Davidovich, M.A. Anda, E.V. Iglesias, J.R. Chiappe, G. Coulomb blockade Kondo effect Mesoscopic systems Tunneling Electric currents Electron tunneling Low temperature properties Magnetic field effects Mathematical models Semiconductor quantum dots Bohm-Aharonov effect Coulomb blockade Kondo effect Magnetic flux Tunneling currents Magnetic resonance We study the effect of the Kondo resonance on the tunneling current oscillations in a mesoscopic ring with a quantum dot, threaded by an external magnetic flux. Two situations are considered: the isolated ring and the ring connected to two external contacts. The system is described by an Anderson impurity tight-binding Hamiltonian where the electron-electron interaction is restricted to the dot. It is shown that at low temperature, even with the system out of resonance, the Kondo peak provides a channel for the electron to tunnel through the dot giving rise to persistent currents, for the isolated ring and to the Bohm-Aharonov oscillations, for the ring electrically connected. © 1998 Elsevier Science B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03048853_v177-181_nPART1_p313_Davidovich
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Coulomb blockade
Kondo effect
Mesoscopic systems
Tunneling
Electric currents
Electron tunneling
Low temperature properties
Magnetic field effects
Mathematical models
Semiconductor quantum dots
Bohm-Aharonov effect
Coulomb blockade
Kondo effect
Magnetic flux
Tunneling currents
Magnetic resonance
spellingShingle Coulomb blockade
Kondo effect
Mesoscopic systems
Tunneling
Electric currents
Electron tunneling
Low temperature properties
Magnetic field effects
Mathematical models
Semiconductor quantum dots
Bohm-Aharonov effect
Coulomb blockade
Kondo effect
Magnetic flux
Tunneling currents
Magnetic resonance
Davidovich, M.A.
Anda, E.V.
Iglesias, J.R.
Chiappe, G.
Kondo effect on tunneling currents in a mesoscopic ring
topic_facet Coulomb blockade
Kondo effect
Mesoscopic systems
Tunneling
Electric currents
Electron tunneling
Low temperature properties
Magnetic field effects
Mathematical models
Semiconductor quantum dots
Bohm-Aharonov effect
Coulomb blockade
Kondo effect
Magnetic flux
Tunneling currents
Magnetic resonance
description We study the effect of the Kondo resonance on the tunneling current oscillations in a mesoscopic ring with a quantum dot, threaded by an external magnetic flux. Two situations are considered: the isolated ring and the ring connected to two external contacts. The system is described by an Anderson impurity tight-binding Hamiltonian where the electron-electron interaction is restricted to the dot. It is shown that at low temperature, even with the system out of resonance, the Kondo peak provides a channel for the electron to tunnel through the dot giving rise to persistent currents, for the isolated ring and to the Bohm-Aharonov oscillations, for the ring electrically connected. © 1998 Elsevier Science B.V. All rights reserved.
format JOUR
author Davidovich, M.A.
Anda, E.V.
Iglesias, J.R.
Chiappe, G.
author_facet Davidovich, M.A.
Anda, E.V.
Iglesias, J.R.
Chiappe, G.
author_sort Davidovich, M.A.
title Kondo effect on tunneling currents in a mesoscopic ring
title_short Kondo effect on tunneling currents in a mesoscopic ring
title_full Kondo effect on tunneling currents in a mesoscopic ring
title_fullStr Kondo effect on tunneling currents in a mesoscopic ring
title_full_unstemmed Kondo effect on tunneling currents in a mesoscopic ring
title_sort kondo effect on tunneling currents in a mesoscopic ring
url http://hdl.handle.net/20.500.12110/paper_03048853_v177-181_nPART1_p313_Davidovich
work_keys_str_mv AT davidovichma kondoeffectontunnelingcurrentsinamesoscopicring
AT andaev kondoeffectontunnelingcurrentsinamesoscopicring
AT iglesiasjr kondoeffectontunnelingcurrentsinamesoscopicring
AT chiappeg kondoeffectontunnelingcurrentsinamesoscopicring
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