Electron spin filter induced by Zeeman splitting in a few-electron quantumdot coupled to two normal electrodes is studied considering Coulomb blockadeeffect. Based on the Anderson model and Liouville-von Neumann equation,equation of motion of the system is derived and analytical solutions areachieved. Transport windows for perfectly polarized current, partiallypolarized current and non-polarized current induced by the Zeeman splittingenergy and Coulomb blockade potential are exploited. We will give the relationsof voltage, magnetic field and temperature for high quality spin filtering.
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