Antiresonance induced spin-polarized current generation

被引：1
|
作者：
Yin Sun [1 ]
Min Wen-Jing
Gao Kun
Xie Shi-Jie
Liu De-Sheng
机构：
[1] Shandong Univ, Dept Phys, Jinan 250100, Peoples R China
来源：
CHINESE PHYSICS B | 2011年 / 20卷 / 12期
基金：
中国国家自然科学基金;
关键词：
antiresonance; spin-polarized current; impurity; SPINTRONICS;
D O I：
10.1088/1674-1056/20/12/127201
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
According to the one-dimensional antiresonance effect (Wang X R, Wang Y and Sun Z Z 2003 Phys. Rev. B 65 193402), we propose a possible spin-polarized current generation device. Our proposed model consists of one chain and an impurity coupling to the chain. The energy level of the impurity can be occupied by an electron with a specific spin, and the electron with such a spin is blocked because of the antiresonance effect. Based on this phenomenon our model can generate the spin-polarized current flowing through the chain due to different polarization rates. On the other hand, the device can also be used to measure the generated spin accumulation. Our model is feasible with today's technology.
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页数：4
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