Artículo
Davidovich, M.A.; Anda, E.V.; Büsser, C.A.; Chiappe, G. "Quantum dot spin effect on the conductance of a quantum wire" (2002) Physical Review B - Condensed Matter and Materials Physics. 65(23):1-4
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Abstract:
A numerically exact calculation of the (formula presented) transport properties of a quantum wire interacting with a lateral two-level quantum dot is presented. The wire conductance is calculated for all different states of charge and spin of the quantum dot. For a dot with two electrons we obtain an enhancement of the Kondo temperature at the singlet-triplet transition and a nonuniversal scaling law for its dependence upon the dot energy spacing. We find that the Kondo correlation is stronger for a dot spin (formula presented) than for (formula presented) In both cases the wire current is totally quenched by the Kondo effect. When the dot is in the mixed-valence regime and (formula presented) the wire conductance is partially quenched except in a very small region of gate potential where it reaches the maximum value (formula presented). © 2002 The American Physical Society.
Registro:
| Documento: | Artículo |
| Título: | Quantum dot spin effect on the conductance of a quantum wire |
| Autor: | Davidovich, M.A.; Anda, E.V.; Büsser, C.A.; Chiappe, G. |
| Filiación: | Departamento de Física, Pontificia Universidade Católica do Rio de Janeiro, Caixa Postal 38071-970, Rio de Janeiro, RJ, Brazil Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires Ciudad Universitaria, Buenos Aires, 1428, Argentina |
| Año: | 2002 |
| Volumen: | 65 |
| Número: | 23 |
| Página de inicio: | 1 |
| Página de fin: | 4 |
| DOI: | http://dx.doi.org/10.1103/PhysRevB.65.233310 |
| Título revista: | Physical Review B - Condensed Matter and Materials Physics |
| Título revista abreviado: | Phys. Rev. B Condens. Matter Mater. Phys. |
| ISSN: | 10980121 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v65_n23_p1_Davidovich |
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Citas:
---------- APA ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A. & Chiappe, G. (2002) . Quantum dot spin effect on the conductance of a quantum wire. Physical Review B - Condensed Matter and Materials Physics, 65(23), 1-4.http://dx.doi.org/10.1103/PhysRevB.65.233310
---------- CHICAGO ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A., Chiappe, G. "Quantum dot spin effect on the conductance of a quantum wire" . Physical Review B - Condensed Matter and Materials Physics 65, no. 23 (2002) : 1-4.http://dx.doi.org/10.1103/PhysRevB.65.233310
---------- MLA ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A., Chiappe, G. "Quantum dot spin effect on the conductance of a quantum wire" . Physical Review B - Condensed Matter and Materials Physics, vol. 65, no. 23, 2002, pp. 1-4.http://dx.doi.org/10.1103/PhysRevB.65.233310
---------- VANCOUVER ----------
Davidovich, M.A., Anda, E.V., Büsser, C.A., Chiappe, G. Quantum dot spin effect on the conductance of a quantum wire. Phys. Rev. B Condens. Matter Mater. Phys. 2002;65(23):1-4.http://dx.doi.org/10.1103/PhysRevB.65.233310
