Analytical model of spin filtering effect and its experimental verification in a forward-biased iron-metal-Al2O3-n-type GaAs tunneling structure under optical spin orientation
文献类型：期刊论文
| 作者 | Xiao, WB ; Zheng, HZ ; Liu, J ; Li, GR ; Zhao, JH |
| 刊名 | epl
 |
| 出版日期 | 2008 |
| 卷号 | 82期号:3页码:art. no. 37003 |
| 关键词 | INJECTION TRANSPORT BARRIER |
| ISSN号 | 0295-5075 |
| 通讯作者 | xiao, wb, chinese acad sci, inst semicond, state key lab superlattices & microstruct, pob 912, beijing 100083, peoples r china. 电子邮箱地址: hzzheng@red.semi.ac.cn |
| 中文摘要 | an analytical model for the spin filtering transport in a ferromagnetic-metal - al2o3 - n-type semiconductor tunneling structure has been developed, and demonstrated that the ratio of the helicity-modulated photo-response to the chopped one is proportional to the sum of the relative asymmetry in conductance of two opposite spin-polarized tunneling channels and the mcd effect of the ferromagnetic metal film. the performed measurement in an iron-metal/al2o3/n-type gaas tunneling structure under the optical spin orientation has verified that all the aspects of the experimental results are very well in accordance with our model in the regime of the spin filtering. after the mcd effect of the iron film is calibrated by an independent measurement, the physical quantity of delta g(t)/g(t) (delta g(t) = g(t)(up arrow) - g(t)(down arrow) is the difference of the conductance between two opposite spin tunneling channels, g(t) =( g(t)(up arrow) + g(t)(down arrow))/2 the averaged tunneling conductance), which concerns us most, can be determined quantitatively with a high sensitivity in the framework of our analytical model. copyright (c) epla, 2008. |
| 学科主题 | 半导体物理 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-03-08 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/6696]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Xiao, WB,Zheng, HZ,Liu, J,et al. Analytical model of spin filtering effect and its experimental verification in a forward-biased iron-metal-Al2O3-n-type GaAs tunneling structure under optical spin orientation[J]. epl,2008,82(3):art. no. 37003. |
| APA | Xiao, WB,Zheng, HZ,Liu, J,Li, GR,&Zhao, JH.(2008).Analytical model of spin filtering effect and its experimental verification in a forward-biased iron-metal-Al2O3-n-type GaAs tunneling structure under optical spin orientation.epl,82(3),art. no. 37003. |
| MLA | Xiao, WB,et al."Analytical model of spin filtering effect and its experimental verification in a forward-biased iron-metal-Al2O3-n-type GaAs tunneling structure under optical spin orientation".epl 82.3(2008):art. no. 37003. |
入库方式： OAI收割
来源：半导体研究所
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