Abstract
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 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.
- Received 27 February 2006
DOI:https://doi.org/10.1103/PhysRevB.74.132505
©2006 American Physical Society