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We have contacted single wall carbon nanotubes (SWCNTs) grown by chemical vapour deposition to superconducting Ti/Al/Ti electrodes. The device we here report on is in the Kondo regime exhibiting a fourfold shell structure, where a clear signature of the superconducting electrodes is observed below the critical temperature. Multiple Andreev reflections are revealed by sub-gap structure and a narrow peak in the differential conductance around zero bias is seen depending on the shell filling. We interpret the peak as a proximity induced supercurrent and examine its interplay with Kondo resonances.
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Grove‐Rasmussen et al. (2007) studied this question.
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