Multiple Andreev reflections in a carbon nanotube quantum dot -: art. no. 057005

被引:166
作者
Buitelaar, MR [1 ]
Belzig, W [1 ]
Nussbaumer, T [1 ]
Babic, B [1 ]
Bruder, C [1 ]
Schönenberger, C [1 ]
机构
[1] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland
关键词
D O I
10.1103/PhysRevLett.91.057005
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report resonant multiple Andreev reflections in a multiwall carbon nanotube quantum dot coupled to superconducting leads. The position and magnitude of the subharmonic gap structure is found to depend strongly on the level positions of the single-electron states which are adjusted with a gate electrode. We discuss a theoretical model of the device and compare the calculated differential conductance with the experimental data.
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页数:4
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