Isfahan University of Technology Journal of Advanced Materials in Engineering 2251-600X 43 2 2024 08 22 A Study on the Structural, Magnetic, and Electrical Characterization of Nickel-Iron-Cobalt Films and [FeNiCo/Cu]30 and [FeNiCo/Cu]60 Multilayers A Study on the Structural, Magnetic, and Electrical Characterization of Nickel-Iron-Cobalt Films and [FeNiCo/Cu]30 and [FeNiCo/Cu]60 Multilayers 69 81 3528 10.47176/jame.43.2.1050 FA E. Paimozd Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Iran A. Ghasemi Department of Materials Engineering, Malek Ashtar University of Technology, Shahin shahr, Iran Journal Article 2024 04 22 The nickel-iron-cobalt film with soft magnetic properties, having a minimal magnetocrystalline anisotropy and magnetostriction are applied in the magnetic sensors with giant magnetoresistance effect. In this work, single layers of Ni₇₆Fe₁₁Co₁₃, Ni₆₆Fe₁₆Co_18, and Ni₅₆Fe₂₁Co₂₃ were coated by the electrochemical method, and then the results of the structural, magnetic, and electrical evaluation were discussed. An increase in the concentration of nickel in the electrolyte solution caused a change in the chemical composition, and morphology of the layers, and also reduced the coercive field. The layer containing 66 atomic percent nickel showed the lowest coercivity and the highest saturation magnetization. The single layers of Ni₆₆Fe₁₆Co₁₈ were deposited on the copper substrate at different times. The results indicated that increasing the deposition time and thickness firstly decreased the coercive field up to 17 Oe, and then increased it up to 45 Oe for the Ni₆₆Fe₁₆Co₁₈ layer. Also, multilayers of [NiFeCo/Cu]₃₀ and [NiFeCo/Cu]₆₀ were synthesized. An increase in the number of layers from 30 to 60 revealed a decrease in the coercive field from 43.1 Oe to 38.4 Oe, as well as an increase in the Mr/Ms squareness ratio from 0.46 to 0.51. The magnetoresistance of [NiFeCo/Cu]₆₀ and [NiFeCo/Cu]₃₀ multilayers indicated an electrical resistance reduction of about 15% and 6%, respectively. The nickel-iron-cobalt film with soft magnetic properties, having a minimal magnetocrystalline anisotropy and magnetostriction are applied in the magnetic sensors with giant magnetoresistance effect. In this work, single layers of Ni₇₆Fe₁₁Co₁₃, Ni₆₆Fe₁₆Co_18, and Ni₅₆Fe₂₁Co₂₃ were coated by the electrochemical method, and then the results of the structural, magnetic, and electrical evaluation were discussed. An increase in the concentration of nickel in the electrolyte solution caused a change in the chemical composition, and morphology of the layers, and also reduced the coercive field. The layer containing 66 atomic percent nickel showed the lowest coercivity and the highest saturation magnetization. The single layers of Ni₆₆Fe₁₆Co₁₈ were deposited on the copper substrate at different times. The results indicated that increasing the deposition time and thickness firstly decreased the coercive field up to 17 Oe, and then increased it up to 45 Oe for the Ni₆₆Fe₁₆Co₁₈ layer. Also, multilayers of [NiFeCo/Cu]₃₀ and [NiFeCo/Cu]₆₀ were synthesized. An increase in the number of layers from 30 to 60 revealed a decrease in the coercive field from 43.1 Oe to 38.4 Oe, as well as an increase in the Mr/Ms squareness ratio from 0.46 to 0.51. The magnetoresistance of [NiFeCo/Cu]₆₀ and [NiFeCo/Cu]₃₀ multilayers indicated an electrical resistance reduction of about 15% and 6%, respectively. https://jame.iut.ac.ir/article_3528_ead81fe8cfe9fda9e4c2093e17e4d024.pdf