Kondo resonance in a nanotube quantum dot coupled to a normal and a superconducting lead

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dc.creatorGraeber, M. R.
dc.creatorNussbaumer, T.
dc.creatorBelzig, W.
dc.creatorKontos, T.
dc.creatorSchoenenberger, C.
dc.date2004-06-25
dc.date.accessioned2026-07-07T06:29:35Z
dc.date.available2026-07-07T06:29:35Z
dc.descriptionWe report on electrical transport measurements through a carbon nanotube quantum dot coupled to a normal and a superconducting lead. The ratio of Kondo temperature and superconducting gap $T_{K}/Δ$ is identified to govern the transport properties of the system. In the case of $T_{K}<Δ$ the conductance resonance splits into two resonances at $\pm Δ$. For the opposite scenario $T_{K}>Δ$ the conductance resonance persists, however the conductance is not enhanced compared to the normal state due to a relative asymmetry of the lead-dot couplings. Within this limit the data is in agreement with a simple model of a resonant SN-interface.
dc.description4 pages, 2 figures. submitted to the Proc. Rencontres de Moriond on Quantum Information and Decoherence in Nanosystems 2004
dc.identifierhttps://arxiv.org/abs/cond-mat/0406638
dc.identifierhttp://arxiv.org/abs/cond-mat/0406638
dc.identifierProc. XXXIXth Rencontres de Moriond on Quantum Information and Decoherence in Nanosystems, 363 (2004)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/98083
dc.subjectMesoscale and Nanoscale Physics
dc.titleKondo resonance in a nanotube quantum dot coupled to a normal and a superconducting lead
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