Bulk contributions to tunnel magnetoresistance in magnetic tunnel junctions
文献类型：期刊论文
| 作者 | Zhu, T ; Xiang, X ; Shen, F ; Zhang, Z ; Landry, G ; Dimitrov, DV ; Garcia, N ; Xiao, JQ |
| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2002 |
| 卷号 | 66期号:9 |
| 关键词 | SPIN-DIFFUSION LENGTH POLARIZATION FILMS MULTILAYERS INTERFACE PERMALLOY THICKNESS |
| ISSN号 | 1098-0121 |
| 通讯作者 | Zhu, T: Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA. |
| 中文摘要 | We have carefully designed an experiment to elucidate the interface and bulk contributions to spin-polarized transport in CoFe-based magnetic tunnel junctions (MTJ's). We demonstrated that the bulklike contribution to tunneling magnetoresistance (TMR) exists in the magnetic tunneling process, which is determined by the tunneling characteristic length of the ferromagnetic electrodes. This characteristic length in MTJ's is different from the spin diffusion length in metallic based spin valves or magnetic multilayers due to the fundamental different transport behaviors in two structures. The experiment designed with a wedge-shaped CoFe layer inserted at the interface between the insulating barrier and reference electrode offers a unique and simple way to determine this characteristic length, which is about 0.8 nm for the CoFe electrode. For interfacial contributions to dominate TMR, the magnetic electrodes should have a very short tunneling characteristic length of atomic scale. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34370]  |
| 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 | Zhu, T,Xiang, X,Shen, F,et al. Bulk contributions to tunnel magnetoresistance in magnetic tunnel junctions[J]. PHYSICAL REVIEW B,2002,66(9). |
| APA | Zhu, T.,Xiang, X.,Shen, F.,Zhang, Z.,Landry, G.,...&Xiao, JQ.(2002).Bulk contributions to tunnel magnetoresistance in magnetic tunnel junctions.PHYSICAL REVIEW B,66(9). |
| MLA | Zhu, T,et al."Bulk contributions to tunnel magnetoresistance in magnetic tunnel junctions".PHYSICAL REVIEW B 66.9(2002). |
入库方式： OAI收割
来源：物理研究所
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