Planar Hall effect bridge magnetic field sensors

被引：75

作者：

Henriksen, A. D. ^{[1
]}

Dalslet, B. T. ^{[1
]}

Skieller, D. H. ^{[1
]}

Lee, K. H. ^{[1
]}

Okkels, F. ^{[1
]}

Hansen, M. F. ^{[1
]}

机构：

[1] Tech Univ Denmark, Dept Micro & Nanotechnol, DTU Nanotech, DK-2800 Kongens Lyngby, Denmark

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 01期

关键词：

geometry; Hall effect transducers; magnetic field measurement; magnetic sensors;

D O I：

10.1063/1.3460290

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Until now, the planar Hall effect has been studied in samples with cross-shaped Hall geometry. We demonstrate theoretically and experimentally that the planar Hall effect can be observed for an exchange-biased ferromagnetic material in a Wheatstone bridge topology and that the sensor signal can be significantly enhanced by a geometric factor. For the samples in the present study, we demonstrate an enhancement of the sensor output by a factor of about 100 compared to cross-shaped sensors. The presented construction opens a new design and application area of the planar Hall effect, which we term planar Hall effect bridge sensors. (c) 2010 American Institute of Physics. [doi: 10.1063/1.3460290]

引用

页数：3

共 6 条

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