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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 181-182Spin-Polarization Electronic Transport through a...

Spin-Polarization Electronic Transport through a Quantum Dot in the Influence of Microwave Field

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Abstract:

The evolution operator method is applied to studying the time-dependent and spin-related electron transport through a quantum dot coupled to two magnetic-metal leads. When the microwave field is applied on quantum dot there are additional peaks of PAT current besides the main peak of resonant tunneling current, and the energy distance between peaks relate to the frequency of microwave fields. Furthermore, Furthermore, owe to the magnetism of lead, the spin-up and spin-down current is different in the parallel magnetization configuration while the same in the antiparallel magnetization configuration.

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Advanced Materials Science and Technology, ICMST 2010

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Periodical:

Advanced Materials Research (Volumes 181-182)

Pages:

873-878

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.181-182.873

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Online since:

January 2011

Authors:

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

Keywords:

Electronic Transport, Microwave Field, Quantum Dot (QD), Spin-Polarization

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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