This Small Business Innovation Research Phase I project will explore the feasibility of developing an ultra-low noise magnetic field sensing technique with picotesla resolution using arrays of MgO-based magnetic tunnel junctions (MTJs). These sensor arrays will be patterned into a fully-active Wheatstone bridge configuration to detect ultra-small magnetic fields. The superior sensitivity of MgO-based MTJ sensors exceeds the performance of existing thin film magnetic sensor technologies by an order of magnitude, allowing the promised performance. If successful, this research will deliver an ultra-sensitive, portable magnetic sensor at a low cost.

The creation of mass-produced picotesla-sensitivity magnetic sensors using MgO-based MTJs will have a commercial impact both for existing markets requiring improved performance, such as the automotive and industrial sectors, and for emerging markets, such as those focused on magnetoencephalography (MEG), magneto-cardiography (MCG), and bio-magnetic detection of viruses and bacteria. The increased sensitivity and decreased cost of magnetic sensing components will push the capabilities of these applications.

Agency
National Science Foundation (NSF)
Institute
Division of Industrial Innovation and Partnerships (IIP)
Type
Standard Grant (Standard)
Application #
0637819
Program Officer
Muralidharan S. Nair
Project Start
Project End
Budget Start
2007-01-01
Budget End
2007-06-30
Support Year
Fiscal Year
2006
Total Cost
$100,000
Indirect Cost
Name
Micro Magnetics Inc
Department
Type
DUNS #
City
Fall River
State
MA
Country
United States
Zip Code
02720