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Interference Effects on Kondo-Assisted Transport through Double Quantum Dots

Yoichi Tanaka·Norio Kawakami
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Abstract

We systematically investigate electron transport through double quantum dots with particular emphasis on interference induced via multiple paths of electron propagation. By means of the slave-boson mean-field approximation, we calculate the conductance, the local density of states, the transmission probability in the Kondo regime at zero temperature. It is clarified how the Kondo-assisted transport changes its properties when the system is continuously changed among the serial, parallel and T-shaped double dots. The obtained results for the conductance are explained in terms of the Kondo resonances influenced by interference effects. We also discuss the impacts due to the spin-polarization of ferromagnetic leads.

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Yoichi Tanaka, Norio Kawakami. 2005-08-02. Interference Effects on Kondo-Assisted Transport through Double Quantum Dots. https://doi.org/10.1103/physrevb.72.085304

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