Pumping Currents from Applying a Microwave Field and a Magnetic Field to a Quantum Dot

Yun Qing Zhou; Jian Ming Yao; Ling Min Kong; Rui Wang

doi:10.4028/www.scientific.net/AMR.181-182.993

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 181-182Pumping Currents from Applying a Microwave Field...

Pumping Currents from Applying a Microwave Field and a Magnetic Field to a Quantum Dot

Abstract:

The evolution operator approach is applied to studying photon-electron pumping effects on a quantum dot connected to two magnetic leads in the presence of both via-dot and over-dot tunneling channels. It is found that a microwave field applied to the quantum dot may give rise to charge and spin pumping at zero bias voltage for asymmetric magnetic junctions.

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Advanced Materials Science and Technology, ICMST 2010

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Periodical:

Advanced Materials Research (Volumes 181-182)

Pages:

993-997

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.181-182.993

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Cite this paper

Online since:

January 2011

Authors:

Yun Qing Zhou, Jian Ming Yao, Ling Min Kong, Rui Wang

Keywords:

Charge Current, Evolution Operator Approach, Microwave Field, Quantum Dot (QD), Spin Current

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References

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