Kondo resonance enhanced supercurrent in single wall carbon nanotube Josephson junctions

被引：60

作者：

Grove-Rasmussen, K. ^{[1
]}

Jorgensen, H. Ingerslev ^{[1
]}

Lindelof, P. E. ^{[1
]}

机构：

[1] Univ Copenhagen, Niels Bohr Inst, Nanosci Ctr, DK-1168 Copenhagen, Denmark

来源：

NEW JOURNAL OF PHYSICS | 2007年 / 9卷

关键词：

D O I：

10.1088/1367-2630/9/5/124

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

引用

页数：10

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