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Radiation impact of swift heavy ion beams on double-interface CoFeB/MgO magnetic tunnel junctions

文献类型：期刊论文

作者Wang, Bi1,2; Wang, Zhaohao1; Du, Ao1; Qiang, You3; Cao, Kaihua1; Zhao, Yuanfu4; Zheng, Hongchao4; Yan, Shaohua1; Zhai, Pengfei5; Liu, Jie5
刊名APPLIED PHYSICS LETTERS
出版日期2020-04-27
卷号116期号:17页码:5
ISSN号0003-6951
DOI10.1063/1.5145124
通讯作者Wang, Zhaohao(zhaohao.wang@buaa.edu.cn) ; Zhao, Yuanfu(zhaoyf@vip.163.com) ; Zhao, Weisheng(weisheng.zhao@buaa.edu.cn)
英文摘要A double-interface CoFeB/MgO magnetic tunnel junction (MTJ) has a high thermal stability barrier (E) and high-efficiency magnetization switching with the scaling of device dimensions. However, compared to a single-interface CoFeB/MgO MTJ, its more complicated film stacks and interfaces are more vulnerable to irradiation-induced swift heavy ions. We have studied the irradiation effects of Ta/Kr ions on double-interface CoFeB/MgO MTJs. Structural and physical analyses are performed through transmission electron microscopy, energy dispersive x-ray spectroscopy, and vibrating sample magnetometry. 1907MeV Ta-ion irradiation damages the interfaces of the double-interface MTJ, resulting in the irreversible decrease in coercivity, while 2060MeV Kr-ion irradiation damages the bulk properties of the MTJ, leading to the decrease in saturation magnetization. However, the electronic properties of the double-interface MTJ are almost immune to Kr-ion irradiation.
WOS关键词SPACE
资助项目National Key R&D Program of China[2018YFB0407602] ; Beihang Hefei Innovation Research Institute[BHKX-19-02] ; National Natural Science Foundation of China[61704005] ; National Natural Science Foundation of China[61627813] ; National Natural Science Foundation of China[61571023] ; National Natural Science Foundation of China[61674015] ; National Natural Science Foundation of China[11690041] ; National Natural Science Foundation of China[11690045] ; Heavy Ion Research Facility in Lanzhou (HIRFL) teams of the Institute of Modern Physics, Chinese Academy of Sciences (IMPCAS)
WOS研究方向Physics
语种英语
WOS记录号WOS:000530422500001
出版者AMER INST PHYSICS
资助机构National Key R&D Program of China ; Beihang Hefei Innovation Research Institute ; National Natural Science Foundation of China ; Heavy Ion Research Facility in Lanzhou (HIRFL) teams of the Institute of Modern Physics, Chinese Academy of Sciences (IMPCAS)
源URL[http://119.78.100.186/handle/113462/140537]  
专题中国科学院近代物理研究所
通讯作者Wang, Zhaohao; Zhao, Yuanfu; Zhao, Weisheng
作者单位1.Beihang Univ, Fert Beijing Res Inst, Beijing Adv Innovat Ctr Big Data & Brain Comp, Sch Microelect, Beijing 100191, Peoples R China
2.Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
3.Univ Idaho, Dept Phys, Moscow, AR 83844 USA
4.Beijing Microelect Technol Inst, Beijing 100076, Peoples R China
5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730030, Peoples R China
6.China Inst Atom Energy, Beijing 102488, Peoples R China
7.Univ Wisconsin, Madison, WI 53706 USA
推荐引用方式
GB/T 7714		 Wang, Bi,Wang, Zhaohao,Du, Ao,et al. Radiation impact of swift heavy ion beams on double-interface CoFeB/MgO magnetic tunnel junctions[J]. APPLIED PHYSICS LETTERS,2020,116(17):5.
APA Wang, Bi.,Wang, Zhaohao.,Du, Ao.,Qiang, You.,Cao, Kaihua.,...&Zhao, Weisheng.(2020).Radiation impact of swift heavy ion beams on double-interface CoFeB/MgO magnetic tunnel junctions.APPLIED PHYSICS LETTERS,116(17),5.
MLA Wang, Bi,et al."Radiation impact of swift heavy ion beams on double-interface CoFeB/MgO magnetic tunnel junctions".APPLIED PHYSICS LETTERS 116.17(2020):5.

入库方式： OAI收割

来源：近代物理研究所

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