Kondo effect in a double quantum-dot molecule under the effect of an electric and magnetic field

Details Kondo effect in a double quantum-dot molecule under the effect of an electric and magnetic field Kondo effect in a double quantum-dot molecule under the effect of an electric and magnetic field

2003-04-03

arxiv.org/abs/cond-mat/0304091v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures. To appear in Sol. State Comm

Scientific paper

10.1016/S0038-1098(03)00303-X

Electron tunneling through a double quantum dot molecule, in the Kondo regime, under the effect of a magnetic field and an applied voltage, is studied. This system possesses a complex response to the applied fields characterized by a tristable solution for the conductance. The different nature of the solutions are studied in and out thermodynamical equilibrium. It is shown that the interdot coupling and the fields can be used to control the region of multistability. The mean-field slave-boson formalism is used to obtain the solution of the problem.

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