Affiliation:
1. Engineering Research Center for Nanophotonics and Advanced Instrument, School of Physics and Materials Science, East China Normal University, 3663 N. Zhongshan Rd., Shanghai 200062, P. R. China
Abstract
The magnetoimpedance effect of Ni[Formula: see text]Fe[Formula: see text]/Cu composited wires was experimentally investigated by varying the Ni[Formula: see text]Fe[Formula: see text] coating thickness. An asymmetric MI behavior with a tunable linear region around zero magnetic field by altering the thickness of Ni[Formula: see text]Fe[Formula: see text] layer was demonstrated. And the MI behavior was governed by the different anisotropy induced by the residual local stress in the multi-layer region. In addition, our investigation also suggested that the interactions between interface phase and outer phase of coating layer decreased with thickness, resulting in the domination of the asymmetric MI characteristic. For thickness of 485[Formula: see text]nm, the sensitivity was up to 225%/Oe from [Formula: see text] Oe to 2 Oe, providing a promising candidate for linear sensor application.
Funder
National Natural Science Foundation of China
Publisher
World Scientific Pub Co Pte Lt
Subject
Materials Chemistry,Surfaces, Coatings and Films,Surfaces and Interfaces,Condensed Matter Physics
Cited by
1 articles.
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