Enhancement of Extraordinary Hall Effect in Pt/CoFe Multilayers With a Small Amount of Fe Doped Into Pt Layers

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	Enhancement of Extraordinary Hall Effect in Pt/CoFe Multilayers With a Small Amount of Fe Doped Into Pt Layers
	Lv, QL ; Cai, JW
刊名	IEEE TRANSACTIONS ON MAGNETICS
	2011
卷号	47 期号:10 页码:3096
关键词	CO/PT SUPERLATTICES THIN-FILMS ALLOYS
ISSN号	0018-9464
通讯作者	Cai, JW: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	The extraordinary Hall effect (EHE) is investigated for the Pt/CoFe multilayers with a small amount of Fe doped into Pt layers. It is found that, through varying CoFe layer thickness and/or the content of Fe in Pt layers, high sensitivity linear EHE can be achieved in the Fe doped Pt/CoFe multilayers at room temperature. Most remarkably, both the saturation Hall resistivity and the Hall angle are significantly enhanced upon adding a small amount of Fe into Pt layers, reaching 1.2 mu Omega.cm and 1.8%, respectively. The EHE sensor based on the Fe doped Pt/CoFe multilayers has the field sensitivity over 400 V/A T, which is twice as large as that of the pure Pt/CoFe multilayers and much higher than the best value ever achieved in Pt-based ferromagnetic alloy thin films. The present results suggest that, due to the large Hall effect and the adjustable interface anisotropy, the Fe doped Pt/CoFe multilayer film should be a potential candidate for magnetic field sensor application.
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/311004/37415]
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	Lv, QL,Cai, JW. Enhancement of Extraordinary Hall Effect in Pt/CoFe Multilayers With a Small Amount of Fe Doped Into Pt Layers[J]. IEEE TRANSACTIONS ON MAGNETICS,2011,47(10):3096.
APA	Lv, QL,&Cai, JW.(2011).Enhancement of Extraordinary Hall Effect in Pt/CoFe Multilayers With a Small Amount of Fe Doped Into Pt Layers.IEEE TRANSACTIONS ON MAGNETICS,47(10),3096.
MLA	Lv, QL,et al."Enhancement of Extraordinary Hall Effect in Pt/CoFe Multilayers With a Small Amount of Fe Doped Into Pt Layers".IEEE TRANSACTIONS ON MAGNETICS 47.10(2011):3096.