Quantum dot in the Kondo regime coupled to superconductors -: art. no. 256801

被引：260

作者：

Buitelaar, MR ^{[1
]}

Nussbaumer, T ^{[1
]}

Schönenberger, C ^{[1
]}

机构：

[1] Univ Basel, Inst Phys, CH-4056 Basel, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.89.256801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Kondo effect and superconductivity are both prime examples of many-body phenomena. Here we report transport measurements on a carbon nanotube quantum dot coupled to superconducting leads that show a delicate interplay between both effects. We demonstrate that the superconductivity of the leads does not destroy the Kondo correlations on the quantum dot when the Kondo temperature, which varies for different single-electron states, exceeds the superconducting gap energy.

引用

页数：4

共 25 条

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[2]

ANDREEV AF, 1964, SOV PHYS JETP-USSR, V19, P1228

[3]

AVISHAI Y, CONDMAT0111442

[4] Quantum entanglement in carbon nanotubes [J].