The interfacial structure and degradation mechanism of the GMR effect in Co90Fe10/Cu and Ni70Co30/Cu magnetic multilayers
文献类型：期刊论文
| 作者 | An, YK ; Dai, B ; Zhang, HD ; Mai, ZH ; Cai, JW ; Wu, ZH |
| 刊名 | JOURNAL OF PHYSICS D-APPLIED PHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 39期号:9页码:1711 |
| 关键词 | X-RAY REFLECTION GIANT MAGNETORESISTANCE FE/CR SUPERLATTICES COFE/CU MULTILAYERS CO/CU MULTILAYERS NIFE/CU SCATTERING ROUGHNESS STABILITY SYSTEMS |
| ISSN号 | 0022-3727 |
| 通讯作者 | An, YK (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | 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. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-23 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/45271]  |
| 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 | 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. |
| APA | An, YK,Dai, B,Zhang, HD,Mai, ZH,Cai, JW,&Wu, ZH.(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. |
| 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. |
入库方式： OAI收割
来源：物理研究所
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