Article ID Journal Published Year Pages File Type
1859516 Physics Letters A 2011 7 Pages PDF
Abstract
► We theoretically investigate the pumping of electrons through double quantum dots attached to ferromagnetic leads. ► An oscillating electric field applied to the quantum dot may give rise to the pumped charge and spin currents. ► When both leads are ferromagnet, a pure spin current can be generated in the antiparallel magnetization configuration. ► By making use of various tunings, the magnitude and direction of the pumped spin current can be well controlled. ► When only one lead is ferromagnetic, both of the charge and spin currents can be pumped and flow in opposite directions.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Physics and Astronomy (General)
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