Abstract:
The T = 0 transport properties of a wire interacting with a lateral two-level quantum dot are studied by using an exact numerical calculation. The wire conductance, the spin-spin correlation and the Kondo temperature are obtained as a function of the dot level energy spacing. When the dot has two electrons and spin SD ∼ 1, the wire current is totally quenched by the S = 1 Kondo effect. The Kondo temperature is maximum at the singlet-triplet transition and its dependence upon the dot energy spacing follows a non-universal scaling law. © 2002 Elsevier Science B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Singlet-triplet transition in a quantum dot: Effect on mesoscopic transport |
Autor: | Davidovich, M.A.; Anda, E.V.; Büsser, C.A.; Chiappe, G. |
Filiación: | Departamento De Física, Pontificia Universidade Católica Do Rio De Janeiro, C.P. 38071-970, Rio de Janeiro, RJ, Brazil Departamento De Física, Universidad De Buenos Aires, Ciudad Universitaria, 1428, Buenos Aires, Argentina
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Palabras clave: | Kondo effect; Quantuam dot; Algorithms; Correlation methods; Electric conductance; Electric wire; Electron transport properties; Electrons; Hamiltonians; Quenching; Kondo effect; Semiconductor quantum dots |
Año: | 2002
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Volumen: | 320
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Número: | 1-4
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Página de inicio: | 366
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Página de fin: | 369
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DOI: |
http://dx.doi.org/10.1016/S0921-4526(02)00750-0 |
Título revista: | Physica B: Condensed Matter
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Título revista abreviado: | Phys B Condens Matter
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ISSN: | 09214526
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CODEN: | PHYBE
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09214526_v320_n1-4_p366_Davidovich |
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Citas:
---------- APA ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A. & Chiappe, G.
(2002)
. Singlet-triplet transition in a quantum dot: Effect on mesoscopic transport. Physica B: Condensed Matter, 320(1-4), 366-369.
http://dx.doi.org/10.1016/S0921-4526(02)00750-0---------- CHICAGO ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A., Chiappe, G.
"Singlet-triplet transition in a quantum dot: Effect on mesoscopic transport"
. Physica B: Condensed Matter 320, no. 1-4
(2002) : 366-369.
http://dx.doi.org/10.1016/S0921-4526(02)00750-0---------- MLA ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A., Chiappe, G.
"Singlet-triplet transition in a quantum dot: Effect on mesoscopic transport"
. Physica B: Condensed Matter, vol. 320, no. 1-4, 2002, pp. 366-369.
http://dx.doi.org/10.1016/S0921-4526(02)00750-0---------- VANCOUVER ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A., Chiappe, G. Singlet-triplet transition in a quantum dot: Effect on mesoscopic transport. Phys B Condens Matter. 2002;320(1-4):366-369.
http://dx.doi.org/10.1016/S0921-4526(02)00750-0