Interplay between Josephson effect and magnetic interactions in double quantum dots

被引：42

作者：

Bergeret, F. S. ^{[1
]}

Yeyati, A. Levy ^{[1
]}

Martin-Rodero, A. ^{[1
]}

机构：

[1] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada CV, E-28049 Madrid, Spain

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.74.132505

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyze the magnetic and transport properties of a double quantum dot coupled to superconducting leads. In addition to the possible phase transition to a pi state, already present in the single dot case, this system exhibits a richer magnetic behavior due to the competition between Kondo and interdot antiferromagnetic coupling. We obtain results for the Josephson current which may help to understand recent experiments on superconductor-metallofullerene dimer junctions. We show that in such a system the Josephson effect can be used to control its magnetic configuration.

引用

页数：4

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