Conductance properties of nanotubes coupled to superconducting leads: Signatures of Andreev states dynamics
Entity
UAM. Departamento de Física Teórica de la Materia CondensadaPublisher
Elsevier LimitedDate
2004-09-01Citation
10.1016/j.ssc.2004.05.031
Solid State Communications 131.9 (2004): 625-630
ISSN
0038-1098 (print); 1879-2766 (online)DOI
10.1016/j.ssc.2004.05.031Editor's Version
http://dx.doi.org/10.1016/j.ssc.2004.05.031Subjects
A. Nanotubes; A. Quantum dots; D. Kondo effect; FísicaNote
This is the peer reviewed version of the following article: Solid State Communications 131.9 (2004): 625-630, which has been published in final form at http://dx.doi.org/10.1016/j.ssc.2004.05.031Rights
© 2004 Elsevier LtdAbstract
We present a combined experimental and theoretical analysis of the low bias conductance properties of carbon nanotubes coupled to superconducting leads. In the Kondo regime, the conductance exhibits a zero bias peak which can be several times larger than the unitary limit in the normal case. This zero bias peak can be understood by analyzing the dynamics of the subgap Andreev states under an applied bias voltage. It is shown that the existence of a linear regime is linked to the presence of a finite relaxation rate within the system. The theory provides a good fitting of the experimental results
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Google Scholar:Buitelaar, M. R.
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Martín-Rodero, A.
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Schönenberger, C.
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Levy-Yeyati Mizrahi, Alfredo
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Vecino, E.
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