Influence of surfactant Ag on the structure of annealing Ni70Co30/Cu multilayers by X-ray reflection anomalous fine structure and X-ray absorption spectroscopy

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	Influence of surfactant Ag on the structure of annealing Ni70Co30/Cu multilayers by X-ray reflection anomalous fine structure and X-ray absorption spectroscopy
	An, YK ; Zhang, HD ; Mai, ZH ; Dai, B ; Cai, JW ; Wu, ZH ; Zhou, HT ; Liu, T
刊名	PHYSICA B-CONDENSED MATTER
	2006
卷号	382 期号:1-2 页码:193
关键词	GIANT MAGNETORESISTANCE SCATTERING NIFE/CU
ISSN号	0921-4526
通讯作者	An, YK: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China.
中文摘要	We performed X-ray reflection anomalous fine structure and X-ray absorption spectroscopy measurements to investigate the influence of Ag as a surfactant on the annealing Ni70Co30/Cu multilayer for the first time. Interfacial intermixing and silver diffusion levels were quantified at the atomic level. During the deposition, a 6 A thick intermixing region exists at the Cu/Ni70Co30 interface while the Ni70Co30/Cu interface is sharp for the un-doped and the Ag-doped multilayers. After 285 degrees C annealing, the two multilayers display different thermal behaviors. Severe diffusion occurs at the Cu/Ni70Co30 and Ni70Co30/Cu interface's of the un-doped multilayer. However, of these the Ag-doped multilayer do not change significantly, indicating that the addition of silver can suppress interfacial intermixing after annealing. The Ag atoms in the Ag-doped multilayer have diffused into some parts Of Ni70Co30 layer while do not exist at the interfaces during the deposition. After 285 degrees C annealing, the Ag atoms diffused into the whole Ni70Co30 layer as well as some parts of the Cu layer. The X-ray absorption spectroscopy measures show that Ni atoms and Cu atoms occupy the interfacial positions in the un-doped multilayer. The addition of silver also do not change the FCC lattice of Co, Ni and Cu, but decrease the amplitude of the Ni and the Co K edge EXAFS profiles, suggesting that Ag atoms do diffuse into the Ni70Co30 layer. (c) 2006 Elsevier B.V. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/39898]
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,Zhang, HD,Mai, ZH,et al. Influence of surfactant Ag on the structure of annealing Ni70Co30/Cu multilayers by X-ray reflection anomalous fine structure and X-ray absorption spectroscopy[J]. PHYSICA B-CONDENSED MATTER,2006,382(1-2):193.
APA	An, YK.,Zhang, HD.,Mai, ZH.,Dai, B.,Cai, JW.,...&Liu, T.(2006).Influence of surfactant Ag on the structure of annealing Ni70Co30/Cu multilayers by X-ray reflection anomalous fine structure and X-ray absorption spectroscopy.PHYSICA B-CONDENSED MATTER,382(1-2),193.
MLA	An, YK,et al."Influence of surfactant Ag on the structure of annealing Ni70Co30/Cu multilayers by X-ray reflection anomalous fine structure and X-ray absorption spectroscopy".PHYSICA B-CONDENSED MATTER 382.1-2(2006):193.