Chemical diffusion: Another factor affecting the magnetoresistance ratio in Ta/CoFeB/MgO/CoFeB/Ta magnetic tunnel junction
文献类型：期刊论文
| 作者 | Yang, Y ; Wang, WX ; Yao, Y ; Liu, HF ; Naganuma, H ; Sakul, TS ; Han, XF ; Yu, RC |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2012 |
| 卷号 | 101期号:1 |
| ISSN号 | 0003-6951 |
| 关键词 | FILMS |
| 通讯作者 | Yang, Y: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | This letter investigates the microstructure and mean inner potential (MIP) profile of Ta/CoFeB/MgO/CoFeB/Ta magnetic tunnel junctions (MTJs) by high resolution transmission electron microscopy (HRTEM) and electron holography, respectively. The inconspicuous crystallization of MgO barrier is confirmed by HRTEM in the post-annealed sample at 250 degrees C. An obvious MIP difference is displayed in the Ta layers between the top and bottom of the MTJ, and elemental content difference of them is confirmed by energy dispersive spectroscopy. These results imply that the chemical diffusion can also give rise to a lower tunnel magnetoresistance ratio besides the inconspicuous crystallization of MgO barrier. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732463] |
| 资助信息 | State Key Development Program for Basic Research of China [2012CB932302, 2010CB934202]; National Natural Science Foundation of China [10974235, 50921091]; Discipline and Graduate Education Project of Beijing Municipal Commission of Education |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34710]  |
| 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 | Yang, Y,Wang, WX,Yao, Y,et al. Chemical diffusion: Another factor affecting the magnetoresistance ratio in Ta/CoFeB/MgO/CoFeB/Ta magnetic tunnel junction[J]. APPLIED PHYSICS LETTERS,2012,101(1). |
| APA | Yang, Y.,Wang, WX.,Yao, Y.,Liu, HF.,Naganuma, H.,...&Yu, RC.(2012).Chemical diffusion: Another factor affecting the magnetoresistance ratio in Ta/CoFeB/MgO/CoFeB/Ta magnetic tunnel junction.APPLIED PHYSICS LETTERS,101(1). |
| MLA | Yang, Y,et al."Chemical diffusion: Another factor affecting the magnetoresistance ratio in Ta/CoFeB/MgO/CoFeB/Ta magnetic tunnel junction".APPLIED PHYSICS LETTERS 101.1(2012). |
入库方式： OAI收割
来源：物理研究所
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