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Abstract:

We investigate the behavior of the four-terminal resistance R4pt in a quantum wire described by a Luttinger liquid in two relevant situations: (i) in the presence of a single impurity within the wire and (ii) under the effect of asymmetries introduced by disordered voltage probes. In the first case, interactions leave a signature in a power-law behavior of R4pt as a function of the voltage V and the temperature T. In the second case interactions tend to mask the effect of the asymmetries. In both scenarios the occurrence of negative values of R4pt is explained in simple terms. © 2008 The American Physical Society.

Registro:

Documento: Artículo
Título:Voltage profile and four-terminal resistance of an interacting quantum wire
Autor:Arrachea, L.; Naón, C.; Salvay, M.
Filiación:Departamento de Física de la Materia Condensada, BIFI, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
Departamento de Física, FCEyN, Pabellón 1 Ciudad Universitaria, 1428 Buenos Aires, Argentina
Departamento de Física, Facultad de Ciencias Exactas, IFLP-CONICET, CC 67, 1900 La Plata, Argentina
Año:2008
Volumen:77
Número:23
DOI: http://dx.doi.org/10.1103/PhysRevB.77.233105
Título revista:Physical Review B - Condensed Matter and Materials Physics
Título revista abreviado:Phys. Rev. B Condens. Matter Mater. Phys.
ISSN:10980121
CODEN:PRBMD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10980121_v77_n23_p_Arrachea

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Citas:

---------- APA ----------
Arrachea, L., Naón, C. & Salvay, M. (2008) . Voltage profile and four-terminal resistance of an interacting quantum wire. Physical Review B - Condensed Matter and Materials Physics, 77(23).
http://dx.doi.org/10.1103/PhysRevB.77.233105
---------- CHICAGO ----------
Arrachea, L., Naón, C., Salvay, M. "Voltage profile and four-terminal resistance of an interacting quantum wire" . Physical Review B - Condensed Matter and Materials Physics 77, no. 23 (2008).
http://dx.doi.org/10.1103/PhysRevB.77.233105
---------- MLA ----------
Arrachea, L., Naón, C., Salvay, M. "Voltage profile and four-terminal resistance of an interacting quantum wire" . Physical Review B - Condensed Matter and Materials Physics, vol. 77, no. 23, 2008.
http://dx.doi.org/10.1103/PhysRevB.77.233105
---------- VANCOUVER ----------
Arrachea, L., Naón, C., Salvay, M. Voltage profile and four-terminal resistance of an interacting quantum wire. Phys. Rev. B Condens. Matter Mater. Phys. 2008;77(23).
http://dx.doi.org/10.1103/PhysRevB.77.233105