Giant magnetoimpedance effect in sputtered single layered NiFe film and meander NiFe/Cu/NiFe film |
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| Authors: | L Chen C Lei ZM Zhou W Ding |
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| Institution: | National Key Laboratory of Nano/Micro Fabrication Technology, Key Laboratory for Thin Film and Microfabrication of Ministry of Education, Institute of Micro & Nano Science and Technology, Shanghai Jiao Tong University, DongChuan Road 800, Shanghai 200240, China |
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| Abstract: | Giant magnetoimpedance (GMI) effect on NiFe thin film is very promising due to its application in developing the magnetic field sensors with highly sensitivity and low cost. In this paper, the single layered NiFe thin film and NiFe/Cu/NiFe thin film with a meander structure are prepared by the MEMS technology. The influences of sputtering parameters, film structure and conductor layer width on GMI effect in NiFe single layer and meander NiFe/Cu/NiFe film are investigated. Maximum of the GMI ratio in single layer and sandwich film is 5% and 64%, respectively. The results obtained are useful for developing the high-performance magnetic sensors based on NiFe thin film. |
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| Keywords: | Giant magnetoimpedance NiFe thin film Meander structure Size effect |
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