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：

暂无

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.

引用

页码：136 / 139

页数：4

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