Spin filtering and spin-polarization reversal in multilayered ferromagnetic metal/semiconductor heterostructures
文献类型：期刊论文
| 作者 | Guo, Y ; Yu, XW ; Li, YX |
| 刊名 | JOURNAL OF APPLIED PHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 98期号:5 |
| 关键词 | 2-DIMENSIONAL ELECTRON GASES QUANTUM-WELLS ORBIT INTERACTION INVERSION-LAYERS ROOM-TEMPERATURE INJECTION SEMICONDUCTOR BARRIER SPINTRONICS TRANSPORT |
| ISSN号 | 0021-8979 |
| 通讯作者 | Guo, Y (reprint author), Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. |
| 中文摘要 | We investigate spin-filtering effect in multilayered ferromagnetic (F)/semiconductor (S) heterostructures within the Landauer framework of ballistic transport. Spin-dependent transmission and polarization are calculated and analyzed for different magnetizations of three ferromagnetic layers in a F/S/F/F structure proposed in this work. The results indicate that in such a multilayered configuration and when the magnetizations of the middle and the right ferromagnetic layers are antiparallel, the transmission for spin-up and spin-down electrons can be separated, which is quite different from the transport properties in the F/S/F structure, where electrons of different spin orientations have exactly the same contributions to transmission if the magnetic moments of the two ferromagnetic layers are antiparallel. It is also shown that the F/S/F/F structure can have big values of the polarization than the F/S/F structure. The quantum size effect of the length of the middle ferromagnetic layer and that of the semiconductor layer are discussed. Moreover, the polarization can be reversed when we switch the magnetizations of the middle and the right ferromagnetic layers. (c) 2005 American Institute of Physics. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52881]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Guo, Y,Yu, XW,Li, YX. Spin filtering and spin-polarization reversal in multilayered ferromagnetic metal/semiconductor heterostructures[J]. JOURNAL OF APPLIED PHYSICS,2005,98(5). |
| APA | Guo, Y,Yu, XW,&Li, YX.(2005).Spin filtering and spin-polarization reversal in multilayered ferromagnetic metal/semiconductor heterostructures.JOURNAL OF APPLIED PHYSICS,98(5). |
| MLA | Guo, Y,et al."Spin filtering and spin-polarization reversal in multilayered ferromagnetic metal/semiconductor heterostructures".JOURNAL OF APPLIED PHYSICS 98.5(2005). |
入库方式： OAI收割
来源：物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。