Design and Development of Magnetic Sensors Based on Giant Magnetoresistance (GMR) Materials
This paper describes magnetic sensors that have been developed in the last three years. GMR thin film materials have been successfully developed using unpinned CoFe/Cu/CoFe sandwiches on Si(100) substrate using a home built dc-opposed-target magnetron sputtering (OTMS). The magnetization of the sandwich is measured using hysteresis loop instrument, the Vibrating Sample Magnetometer (VSM). It was found that the phase of GMR was formed, with the MR ratio 15.76%.
A.K. Arof and S.A. Hashim Ali
M. Djamal et al., "Design and Development of Magnetic Sensors Based on Giant Magnetoresistance (GMR) Materials", Materials Science Forum, Vol. 517, pp. 207-211, 2006