Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation

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The interplay between the Kondo effect and the interdot magnetic interaction in a coupled-dot system is studied. An exact result for the transport properties at zero temperature is obtained by diagonalizing a cluster, composed by the double dot and its vicinity, which is connected to leads. It is sh...

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Autores principales: Büsser, C.A., Anda, E.V., Lima, A.L., Davidovich, M.A., Chiappe, G.
Formato: JOUR
Materias:
article
conductance
electron
magnetic field
physics
quantum theory
semiconductor
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_01631829_v62_n15_p9907_Busser
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_01631829_v62_n15_p9907_Busser
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spelling todo:paper_01631829_v62_n15_p9907_Busser2023-10-03T15:01:49Z Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation Büsser, C.A. Anda, E.V. Lima, A.L. Davidovich, M.A. Chiappe, G. article conductance electron magnetic field physics quantum theory semiconductor The interplay between the Kondo effect and the interdot magnetic interaction in a coupled-dot system is studied. An exact result for the transport properties at zero temperature is obtained by diagonalizing a cluster, composed by the double dot and its vicinity, which is connected to leads. It is shown that the system goes continuously from the Kondo regime to an antiferromagnetic state as the interdot interaction is increased. The conductance, the charge at the dots, and the spin-spin correlation are obtained as a function of the gate potential. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01631829_v62_n15_p9907_Busser
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic article
conductance
electron
magnetic field
physics
quantum theory
semiconductor
spellingShingle article
conductance
electron
magnetic field
physics
quantum theory
semiconductor
Büsser, C.A.
Anda, E.V.
Lima, A.L.
Davidovich, M.A.
Chiappe, G.
Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation
topic_facet article
conductance
electron
magnetic field
physics
quantum theory
semiconductor
description The interplay between the Kondo effect and the interdot magnetic interaction in a coupled-dot system is studied. An exact result for the transport properties at zero temperature is obtained by diagonalizing a cluster, composed by the double dot and its vicinity, which is connected to leads. It is shown that the system goes continuously from the Kondo regime to an antiferromagnetic state as the interdot interaction is increased. The conductance, the charge at the dots, and the spin-spin correlation are obtained as a function of the gate potential.
format JOUR
author Büsser, C.A.
Anda, E.V.
Lima, A.L.
Davidovich, M.A.
Chiappe, G.
author_facet Büsser, C.A.
Anda, E.V.
Lima, A.L.
Davidovich, M.A.
Chiappe, G.
author_sort Büsser, C.A.
title Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation
title_short Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation
title_full Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation
title_fullStr Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation
title_full_unstemmed Transport in coupled quantum dots: Kondo effect versus antiferromagnetic correlation
title_sort transport in coupled quantum dots: kondo effect versus antiferromagnetic correlation
url http://hdl.handle.net/20.500.12110/paper_01631829_v62_n15_p9907_Busser
work_keys_str_mv AT busserca transportincoupledquantumdotskondoeffectversusantiferromagneticcorrelation
AT andaev transportincoupledquantumdotskondoeffectversusantiferromagneticcorrelation
AT limaal transportincoupledquantumdotskondoeffectversusantiferromagneticcorrelation
AT davidovichma transportincoupledquantumdotskondoeffectversusantiferromagneticcorrelation
AT chiappeg transportincoupledquantumdotskondoeffectversusantiferromagneticcorrelation
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