Detection of domain wall distribution and nucleation in ferromagnetic nanocontact structures by magnetic force microscopy

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	Detection of domain wall distribution and nucleation in ferromagnetic nanocontact structures by magnetic force microscopy
	Yao, ZN ; Yang, HF ; Li, JJ ; Jiang, QQ ; Li, WX ; Gu, CZ
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2013
卷号	342 页码:1
关键词	Domain wall Ferromagnetic nanocontact structure Magnetic force microscopy
ISSN号	0304-8853
通讯作者	Gu, CZ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, POB 603, Beijing 100190, Peoples R China.
中文摘要	Ferromagnetic nanocontact structures have attracted broad interest due to their potential applications in nanodevices as well as in the fundamental studies of domain wall location and controllable pinning, which are key factors to understand the physics of nanodevices based on these structures. In this paper, we investigated the distribution of domain wall in permalloy nanocontacts before and after magnetic field utilizing by Magnetic Force Microscopy (MFM). We find that the domain wall located in the vicinity of the nanocontact, which is not the exact contact position as supposed when a field of 5 kOe was applied. The mechanism behind such observation may mainly due to the energy equilibrium inside the sample. Moreover, mismatched nanocontact structures were designed and fabricated with domain wall pinned in the exact contact position, which suggests that the mismatched contact structures maybe an idea structure to investigate the interplay between the spin polarized current and the domain wall. (c) 2013 Elsevier B.V. All rights reserved.
资助信息	National Natural Science Foundation of China [50825206, 1083401, 60871045, 91023041, 11174362]; Knowledge Innovation Program of CAS [KJCX2-EW-W02]
语种	英语
公开日期	2014-01-16
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/56879]
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	Yao, ZN,Yang, HF,Li, JJ,et al. Detection of domain wall distribution and nucleation in ferromagnetic nanocontact structures by magnetic force microscopy[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2013,342:1.
APA	Yao, ZN,Yang, HF,Li, JJ,Jiang, QQ,Li, WX,&Gu, CZ.(2013).Detection of domain wall distribution and nucleation in ferromagnetic nanocontact structures by magnetic force microscopy.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,342,1.
MLA	Yao, ZN,et al."Detection of domain wall distribution and nucleation in ferromagnetic nanocontact structures by magnetic force microscopy".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 342(2013):1.