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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Detalles Bibliográficos
Autores principales:	Iglesias, J.R., Anda, E.V., Davidovich, M.A., Chiappe, G.
Formato:	JOUR
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:	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	todo:paper_09214526_v230-232_n_p478_Iglesias
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spelling	todo:paper_09214526_v230-232_n_p478_Iglesias2023-10-03T15:45:05Z The Kondo effect in Bohm-Aharonov resonant tunneling devices Iglesias, J.R. Anda, E.V. Davidovich, M.A. Chiappe, G. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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 Iglesias, J.R. Anda, E.V. Davidovich, M.A. Chiappe, G. 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.
format	JOUR
author	Iglesias, J.R. Anda, E.V. Davidovich, M.A. Chiappe, G.
author_facet	Iglesias, J.R. Anda, E.V. Davidovich, M.A. Chiappe, G.
author_sort	Iglesias, J.R.
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
url	http://hdl.handle.net/20.500.12110/paper_09214526_v230-232_n_p478_Iglesias
work_keys_str_mv	AT iglesiasjr thekondoeffectinbohmaharonovresonanttunnelingdevices AT andaev thekondoeffectinbohmaharonovresonanttunnelingdevices AT davidovichma thekondoeffectinbohmaharonovresonanttunnelingdevices AT chiappeg thekondoeffectinbohmaharonovresonanttunnelingdevices AT iglesiasjr kondoeffectinbohmaharonovresonanttunnelingdevices AT andaev kondoeffectinbohmaharonovresonanttunnelingdevices AT davidovichma kondoeffectinbohmaharonovresonanttunnelingdevices AT chiappeg kondoeffectinbohmaharonovresonanttunnelingdevices
_version_	1782027912021540864

The Kondo effect in Bohm-Aharonov resonant tunneling devices

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