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Abstract:

We study the transport mechanisms taking place in a quantum spin Hall bar with an embedded quantum dot, where electrons localize and experience Coulomb interaction U as well as spin-flip processes λ. We solve the problem with nonequilibrium Green functions. We focus on the linear-response regime and treat the many-body interactions with quantum Monte Carlo. The effects of U and λ are competitive and the induced transport takes place through different channels. The two mechanisms can be switched by changing the occupation of the dot with a gate voltage. © 2016 American Physical Society.

Registro:

Documento: Artículo
Título:Transport in quantum spin Hall edges in contact to a quantum dot
Autor:Rizzo, B.; Camjayi, A.; Arrachea, L.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón i, Ciudad Universitaria, Buenos Aires, 1428, Argentina
International Center for Advanced Studies, UNSAM, Campus Miguelete, 25 de Mayo y Francia, Buenos Aires, 1650, Argentina
Año:2016
Volumen:94
Número:12
DOI: http://dx.doi.org/10.1103/PhysRevB.94.125425
Título revista:Physical Review B
Título revista abreviado:Phys. Rev. B
ISSN:24699950
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_24699950_v94_n12_p_Rizzo

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Citas:

---------- APA ----------
Rizzo, B., Camjayi, A. & Arrachea, L. (2016) . Transport in quantum spin Hall edges in contact to a quantum dot. Physical Review B, 94(12).
http://dx.doi.org/10.1103/PhysRevB.94.125425
---------- CHICAGO ----------
Rizzo, B., Camjayi, A., Arrachea, L. "Transport in quantum spin Hall edges in contact to a quantum dot" . Physical Review B 94, no. 12 (2016).
http://dx.doi.org/10.1103/PhysRevB.94.125425
---------- MLA ----------
Rizzo, B., Camjayi, A., Arrachea, L. "Transport in quantum spin Hall edges in contact to a quantum dot" . Physical Review B, vol. 94, no. 12, 2016.
http://dx.doi.org/10.1103/PhysRevB.94.125425
---------- VANCOUVER ----------
Rizzo, B., Camjayi, A., Arrachea, L. Transport in quantum spin Hall edges in contact to a quantum dot. Phys. Rev. B. 2016;94(12).
http://dx.doi.org/10.1103/PhysRevB.94.125425