The interfacial structure and degradation mechanism of the GMR effect in Co90Fe10/Cu and Ni70Co30/Cu magnetic multilayers | |
An, YK; Dai, B; Zhang, HD; Mai, ZH; Cai, JW; Wu, ZH![]() ![]() | |
刊名 | JOURNAL OF PHYSICS D-APPLIED PHYSICS
![]() |
2006 | |
卷号 | 39期号:9页码:1711-1717 |
通讯作者 | Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China ; Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China |
英文摘要 | We investigated the microstructures of Co90Fe10/Cu and Ni70Co30/CU multilayers before and after annealing at 285 degrees C for 2 h, as well as the influence of microstructures on the thermal degradation of the GMR (giant magnetoresistance) effect, using innovative x-ray anomalous scattering techniques. It is found that there exists a significant asymmetry between the interfaces on both sides of the Cu layers during the deposition. The diffusion only occurs at the Cu/Ni70Co30 and Cu/Co90Fe10 interfaces while the Ni70CO30/Cu and Co90Fe10/Cu interfaces are sharp. After annealing at 285 degrees C, the Co90Fe10/Cu interface is still sharp, but the Ni70Co30/CU interface forms a CuNi2Co intermixing region. X-ray diffuse scattering profiles performed with x-ray energy close to the Fe, Co, Ni and Cu K edges show that the local lateral environments of Fe, Co, Ni and Cu at the interfaces are different for both the as-deposited multilayers. After annealing, the interfacial lateral correlation lengths and the fractal exponent of the Ni70Co30/Cu multilayer decrease significantly and the difference of the interfacial lateral correlation lengths of Co, Ni and Cu becomes smaller. However, those of the Co90Fe10/Cu multilayer do not change. This indicates that the main cause of thermal degradation of the GMR effect is the compositional intermixing at the multilayer interface, which has more influence on the GMR effect than the atom diffusion along the grain boundary. |
学科主题 | Physics |
类目[WOS] | Physics, Applied |
研究领域[WOS] | Physics |
原文出处 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000238233900002 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihep.ac.cn/handle/311005/239492] ![]() |
专题 | 高能物理研究所_多学科研究中心 |
作者单位 | 中国科学院高能物理研究所 |
推荐引用方式 GB/T 7714 | An, YK,Dai, B,Zhang, HD,et al. The interfacial structure and degradation mechanism of the GMR effect in Co90Fe10/Cu and Ni70Co30/Cu magnetic multilayers[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2006,39(9):1711-1717. |
APA | An, YK.,Dai, B.,Zhang, HD.,Mai, ZH.,Cai, JW.,...&吴忠华.(2006).The interfacial structure and degradation mechanism of the GMR effect in Co90Fe10/Cu and Ni70Co30/Cu magnetic multilayers.JOURNAL OF PHYSICS D-APPLIED PHYSICS,39(9),1711-1717. |
MLA | An, YK,et al."The interfacial structure and degradation mechanism of the GMR effect in Co90Fe10/Cu and Ni70Co30/Cu magnetic multilayers".JOURNAL OF PHYSICS D-APPLIED PHYSICS 39.9(2006):1711-1717. |
个性服务 |
查看访问统计 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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。
修改评论