Saccharin Dependence of Magnetoimpedance Ratio in Electrodeposited Permalloy Multilayer Structure on Meandered-Copper Printed-Circuit-Board Substrates

The effect of saccharin concentration on magnetoimpedance ratio in multilayer permalloy structure i.e., [NiFe/Cu/NiFe]3/Cu/[NiFe/Cu/NiFe]3 on Cu printed circuit board (PCB) meander substrates have been discussed. The multilayer [NiFe/Cu/NiFe]3/Cu/[NiFe/Cu/NiFe]3 structure was prepared by using the electrodeposition method. The results of XRF characterization show that the composition of Ni:Fe is close to the calculation mol ratio permalloy of 80:20. The magnetoimpedance effect is evaluated by total impedance measurement at the various magnetic fields. The typical increase of the magneto-impedance ratio with frequency confirms in this experiment. Here, the magnetoimpedance ratio modifies from 0.07 to 1.63 % for frequency measurements of 20 and 100 kHz, respectively. Finally, the MI ratio monotonically decreases with an increase in additive saccharin concentration. The MI ratio slightly decreases by 17.17 % (=(1.63-1.35)/1.63) for additive saccharin concentration increase of 1 to 2 g/L. Then MI ratio drastically decreases by 40.0 % (=(1.35-0.81)/1.35) in the change of additive saccharin concentration from 2 to 4 g/L. Here, the change in the morphological surface should attribute to the decrease in the MI ratio. HIGHLIGHTS Multilayer [NiFe/Cu/NiFe]3/Cu/[NiFe/Cu/NiFe]3 structure on Cu PCB meander substrates has been successfully fabricated by electrodeposition procedure. The magneto-impedance effect of the multilayer samples has been successfully showed at low frequency of ~kHz order. The saccharine as an additive material for electrodeposition procedure can modify the magneto-impedance effect of the multilayer sample. GRAPHICAL ABSTRACT