Design of an efficient spin filter device
Design of an efficient spin filter device
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DOI：
10.1088/0268-1242/21/12/046
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发表时间：
2006-12
影响因子：
1.9
通讯作者：
M. Amado;P. Orellana;F. Domínguez‐Adame
中科院分区：
文献类型：
--
作者：
M. Amado;P. Orellana;F. Domínguez‐Adame
在载流子的自旋简并性被提升的量子点中，Fano效应可以用作产生透射载流子的自旋极化的有效手段。在这项工作中，我们提出了一种新的和更有效的设计自旋相关的偏振器。该器件由一条量子线和两个侧面耦合的量子点组成。自旋相关的极化电流进行了详细的分析，我们发现一些改进相比，更传统的设计。
In a quantum dot in which the spin degeneracy of a carrier is lifted, the Fano effect may be used as an effective means to generate spin polarization of transmitted carriers. In this work, we propose a new and more effective design of a spin-dependent polarizer. The proposed device consists of a quantum wire with two side-coupled quantum dots. A detailed analysis of the spin-dependent polarized current is carried out, and we find some improvements as compared to more conventional designs.