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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
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
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
Volumen:320
Número:1-4
Página de inicio:366
Página de fin:369
DOI: http://dx.doi.org/10.1016/S0921-4526(02)00750-0
Título revista:Physica B: Condensed Matter
Título revista abreviado:Phys B Condens Matter
ISSN:09214526
CODEN:PHYBE
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