Spin-Polarized Currents in Double Quantum Dots with Rashba Spin-Orbit Interactions

被引：0
|
作者：
李振山 [1 ]
潘晖 [1 ]
吕嵘 [2 ]
机构：
[1] Department of Physics and State Key Laboratory of Software Development Environment,Beihang University
[2] Department of Physics,Tsinghua
来源：
Chinese Physics Letters | 2013年 / 30卷 / 08期
关键词：
D O I：
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中图分类号：
O471.1 [半导体量子理论];
学科分类号：
摘要：
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.
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页码：136 / 139
页数：4
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