Antiresonance induced spin-polarized current generation  

作　　者：尹笋 闵文静 高琨 解士杰 刘德胜 

机构地区：[1]Department of Physics and State Key Laboratory of Crystal Materials,Shandong University

出　　处：《Chinese Physics B》2011年第12期346-349,共4页中国物理B（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 10904082 and 10875072)

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.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.

关 键 词：ANTIRESONANCE spin-polarized current IMPURITY 

分 类 号：O469[理学—凝聚态物理]