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Start Over Author "Rong Lü" Journal chinese physics letters
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4. Spin-Polarized Currents in Double Quantum Dots with Rashba Spin-Orbit Interactions.

Author

Zhen-Shan, Li, Hui, Pan, and Rong, Lü

Subjects
SPIN-polarized currents, QUANTUM dots, RASHBA effect, OPTICAL polarization, PHASE diagrams
Abstract

We propose a new scheme of realizing spin-polarized currents in a double quantum dot system. In the presence of Rashba spin-orbit coupling interactions and different Zeeman splittings of each quantum dot, the currents are spin-polarized. The polarization can be controlled by tuning the strength of Rashba spin-orbit coupling and external magnetic fields, which can produce nearly 100% spin-polarized currents. Furthermore, we explain and analyze the mechanism of the strongly spin-polarized currents. Lastly we give two phase diagrams to display our results. [ABSTRACT FROM AUTHOR]

Published
2013
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