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Spin-flip Fano-Kondo resonant transport throgh a quantum dot interferometer responded by a rotating magnetic field
Zhao Hong-Kang * #,Gao He
School of Physics, Beijing Institute of Technology, Beijing 100081
*Correspondence author
#Submitted by
Subject:
Funding: The National Natural Science Foundation of China (No. 11175015)), The Doctoral Program of Higher Education of China (No.20091101110040)
Opened online: 2 January 2013
Accepted by: none
Citation: Zhao Hong-Kang,Gao He.Spin-flip Fano-Kondo resonant transport throgh a quantum dot interferometer responded by a rotating magnetic field[OL]. [ 2 January 2013] http://en.paper.edu.cn/en_releasepaper/content/4505624
 
 
We have theoretically investigated the Fano and Kondo cooperated resonant tunneling through a quantum dot interferometer under theperturbation of a rotating magnetic field. By employing the Keldysh nonequilibrium Green's function method we have derived the spin polarized current formula components generally, by which the charge current and spin current are given directly. We have performed the numerical calculations on spin and charge currents to show the features of mesoscopic transport associated with Kondo, Fano, and Zeeman effects intimately. The induced spin current in the Kondo regime is very different from the case in non-interacting regime. The spin current is tuned from the resonant peak to the valley by varying the parameters.
Keywords:Fano-Kondo resonant tunneling; spin-flip effect; quantum dot, spin-polarized currents
 
 
 

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