Design and Development of Magnetic Sensors Based on Giant Magnetoresistance (GMR) Materials

Author:

Djamal Mitra1,Darsikin 2,Saragi Togar3,Barmawi M.1

Affiliation:

1. Institut Teknologi Bandung

2. Universitas Tadulako

3. Universitas Sam Ratulangi

Abstract

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%.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Reference21 articles.

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3. J. Lenz, Magnetic Sensors, Proc. IEEE 78, pp.973-989, (1990).

4. J Heremans, Solid State Magnetic Field Sensors and Applications, J. Phys. 26, p.11491168, (1993).

5. Donald R. Krahn, A Brief Study of Magnetic Sensors, Proceedings Sensors Expo Boston, pp.75-82, Helmers, Peterborough, NH, (1995).

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