Zigzag-Shaped Magnetic Films Used for Single-Axis Field Sensing
F.C.S. da Silva and co-workers at the National Institute of Standards and Technology (NIST) in Boulder, Colo., and Gaithersburg, Md., have fabricated and simulated zigzag-shaped magnetic thinfilm elements. They chose the zigzag geometry because it can be used as a single-axis magnetic-field sensor,...
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Published in | MRS bulletin Vol. 30; no. 2; p. 80 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
New York, USA
Cambridge University Press
01.02.2005
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Subjects | |
Online Access | Get full text |
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Summary: | F.C.S. da Silva and co-workers at the National Institute of Standards and Technology (NIST) in Boulder, Colo., and Gaithersburg, Md., have fabricated and simulated zigzag-shaped magnetic thinfilm elements. They chose the zigzag geometry because it can be used as a single-axis magnetic-field sensor, which is integral to nanoscale devices for data storage technologies. These devices are based on the anisotropic magnetoresistive (AMR) effect. While the AMR effect has a relatively small change in resistance, the devices compensate by their sensitivity to field changes and by very low intrinsic magnetic noise. Both of these properties arise because AMR devices are made from a single layer of magnetic material. Having control over the magnetic easy axis orientation is important for making scalable AMR sensors without complicated current- and field-biasing schemes. |
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Bibliography: | ark:/67375/6GQ-49L5SC08-N istex:6FF8105E720504B0149A048D1EF2C10C4C90B4A2 PII:S0883769400012136 ArticleID:01213 ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0883-7694 1938-1425 |
DOI: | 10.1557/mrs2005.36 |