High power terahertz pulses generated in intense laser-plasma interactions
文献类型：期刊论文
| 作者 | Li, YT ; Wang, WM ; Li, C ; Sheng, ZM |
| 刊名 | CHINESE PHYSICS B
 |
| 出版日期 | 2012 |
| 卷号 | 21期号:9 |
| 关键词 | ELECTROMAGNETIC PULSES OPTICAL RECTIFICATION RADIATION EMISSION AIR TECHNOLOGY ELECTRONS SURFACES TARGETS |
| ISSN号 | 1674-1056 |
| 通讯作者 | Li, YT: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | By systematically comparing the magnetic properties of the Ta/CoFeB/Ta and MgO/CoFeB/MgO structures with and without a submonolayer of MgO, Ta, V, Nb, Hf and W inserted in the middle of the CoFeB layer, we have proved that the observed perpendicular magnetic anisotropy (PMA) in Ta/CoFeB/MgO sandwiches is solely originated from the CoFeB/MgO interface with the Ta buffer acting to enhance the CoFeB/MgO interface anisotropy significantly. Moreover, replacing Ta with Hf causes the CoFeB/MgO interfacial PMA further enhanced by 35%, and the CoFeB layer with perpendicular magnetization has a much larger critical thickness accordingly, leaving a wider thickness margin for the CoFeB/MgO-based perpendicular magnetic tunnel junction optimization. Also the sputter deposited thin Hf films are amorphous with low surface roughness. These results will ensure the Hf/CoFeB/MgO more promising material system for PMA device development. Copyright 2012 Author(s). This article is distributed under a Creative Commons Attribution 3.0 Unported License. [http://dx.doi.org/10.1063/1.4748337] |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10925421, 11135012, 11105217, 11121504] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39211]  |
| 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 | Li, YT,Wang, WM,Li, C,et al. High power terahertz pulses generated in intense laser-plasma interactions[J]. CHINESE PHYSICS B,2012,21(9). |
| APA | Li, YT,Wang, WM,Li, C,&Sheng, ZM.(2012).High power terahertz pulses generated in intense laser-plasma interactions.CHINESE PHYSICS B,21(9). |
| MLA | Li, YT,et al."High power terahertz pulses generated in intense laser-plasma interactions".CHINESE PHYSICS B 21.9(2012). |
入库方式： OAI收割
来源：物理研究所
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