| Issue |
EPL
Volume 86, Number 6, June 2009
|
|
|---|---|---|
| Article Number | 67006 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/86/67006 | |
| Published online | 10 July 2009 | |
Thermal dependence of the zero-bias conductance through a nanostructure
1
Departamento de Física e Informática, Instituto de Física de São Carlos, Universidade de São Paulo 369, São Carlos, SP, Brazil
2
ICCMP - International Center for Condensed Matter Physics, Universidade de Brasília - 04513, Brasília, DF, Brazil
3
Departamento de Física, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista 13500, Rio Claro, SP, Brazil
Corresponding author: luizno@usp.br
Received:
20
February
2009
Accepted:
2
June
2009
We show that the conductance of a quantum wire side-coupled to a quantum dot, with a gate potential favoring the formation of a dot magnetic moment, is a universal function of the temperature. Universality prevails even if the currents through the dot and the wire interfere. We apply this result to the experimental data of Sato et al. (Phys. Rev. Lett., 95 (2005) 066801).
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 73.21.La – Quantum dots / 72.15.Qm – Scattering mechanisms and Kondo effect
© EPLA, 2009
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