CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 9551 > Article
Presentation
5 October 2015 Development of micronic GMR-magnetoresistive sensors for non-destructive sensing applications (Presentation Recording)
Henri Jaffrès, Yves LeMaitre, Sophie Collin, Frédéric Nguyen Vandau, Natalia Sergeeva-Chollet, Jean-Marc Decitre
Author Affiliations +
Proceedings Volume 9551, Spintronics VIII; 95512G (2015) https://doi.org/10.1117/12.2187451
Event: SPIE Nanoscience + Engineering, 2015, San Diego, California, United States
Abstract
We will present our last development of GMR-based magnetic sensors devoted to sensing application for non-destructive control application. In these first realizations, we have chosen a so-called shape anisotropy - exchange biased strategy to fulfill the field-sensing criteria in the μT range in devices made of micronic single elements. Our devices realized by optical lithography, and whose typical sizes range from 150 μm x 150 μm to 500 μm x 500 μm elements, are made of trilayers GMR-based technology and consist of several circuitries of GMR elements of different lengths, widths and gaps. To obtain a full sensing linearity and reversibility requiring a perpendicular magnetic arrangement between both sensitive and hard layer, the magnetization of the latter have been hardened by pinning it with an antiferromagnetic material. The specific geometry of the design have been engineered in order to optimize the magnetic response of the soft layer via the different magnetic torques exerted on it essentially played by the dipolar fields or shape anisotropy, and the external magnetic field to detect. The smaller dimensions in width and in gap are then respectively of 2 μm and 3 μm to benefit of the full shape anisotropy formatting the magnetic response.
Conference Presentation
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Henri Jaffrès, Yves LeMaitre, Sophie Collin, Frédéric Nguyen Vandau, Natalia Sergeeva-Chollet, and Jean-Marc Decitre "Development of micronic GMR-magnetoresistive sensors for non-destructive sensing applications (Presentation Recording)", Proc. SPIE 9551, Spintronics VIII, 95512G (5 October 2015); https://doi.org/10.1117/12.2187451
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Magnetic sensors
Magnetism
Anisotropy
Nondestructive evaluation
Optical components
Sensors
Optical lithography
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top