Kondo effect in double quantum dots with inter-dot repulsion

Details Kondo effect in double quantum dots with inter-dot repulsion Kondo effect in double quantum dots with inter-dot repulsion

2006-03-07

arxiv.org/abs/cond-mat/0603174v2

Phys. Rev. B 73, 241305(R) (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevB.73.241305

We investigate a symmetrical double quantum dot system serially attached to the leads. The emphasis is on the numerical analysis of finite inter-dot tunneling in the presence of inter-dot repulsive capacitive coupling. The results reveal the competition between extended Kondo phases and local singlet phases in spin and charge degrees of freedom. The corresponding phase diagram is determined quantitatively.

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