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Abstract:

We calculate the distribution of the conductance G in a one-dimensional disordered wire at finite temperature T and bias voltage V in an independent-electron picture and assuming full coherent transport. At high enough temperature and bias voltage, where several resonances of the system contribute to the conductance, the distribution P (G (T,V)) can be represented with good accuracy by autoconvolutions of the distribution of the conductance at zero temperature and zero bias voltage. The number of convolutions depends on T and V. In the regime of very low T and V, where only one resonance is relevant to G (T,V), the conductance distribution is analyzed by a resonant tunneling conductance model. Strong effects of finite T and V on the conductance distribution are observed and well described by our theoretical analysis, as we verify by performing a number of numerical simulations of a one-dimensional disordered wire at different temperatures, voltages, and lengths of the wire. Analytical estimates for the first moments of P (G (T,V)) at high temperature and bias voltage are also provided. © 2006 The American Physical Society.

Registro:

Documento: Artículo
Título:Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage
Autor:Foieri, F.; Sánchez, M.J.; Arrachea, L.; Gopar, V.A.
Filiación:Departamento de Física J. J. Giambiagi FCEyN, Universidad de Buenos Aires, Ciudad Universitaria Pab.I, (1428) Buenos Aires, Argentina
Centro Atómico Bariloche, Instituto Balseiro, Bustillo 9500, (8400), Bariloche, Argentina
Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Pedro Cerbuna 12, 50009 Zaragoza, Spain
Instituto de Biocomputación Y Física de Sistemas Complejos, Universidad de Zaragoza, Corona de Aragón 42, 50009 Zaragoza, Spain
Año:2006
Volumen:74
Número:16
DOI: http://dx.doi.org/10.1103/PhysRevB.74.165313
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_v74_n16_p_Foieri

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Citas:

---------- APA ----------
Foieri, F., Sánchez, M.J., Arrachea, L. & Gopar, V.A. (2006) . Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage. Physical Review B - Condensed Matter and Materials Physics, 74(16).
http://dx.doi.org/10.1103/PhysRevB.74.165313
---------- CHICAGO ----------
Foieri, F., Sánchez, M.J., Arrachea, L., Gopar, V.A. "Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage" . Physical Review B - Condensed Matter and Materials Physics 74, no. 16 (2006).
http://dx.doi.org/10.1103/PhysRevB.74.165313
---------- MLA ----------
Foieri, F., Sánchez, M.J., Arrachea, L., Gopar, V.A. "Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage" . Physical Review B - Condensed Matter and Materials Physics, vol. 74, no. 16, 2006.
http://dx.doi.org/10.1103/PhysRevB.74.165313
---------- VANCOUVER ----------
Foieri, F., Sánchez, M.J., Arrachea, L., Gopar, V.A. Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage. Phys. Rev. B Condens. Matter Mater. Phys. 2006;74(16).
http://dx.doi.org/10.1103/PhysRevB.74.165313