Structural and magnetic properties of electrodeposited Ni-Fe-W-S thin films

Nano crystalline Ni-Fe-W-S alloy thin films were deposited by electro deposition method on copper substrate with different concentration of bath at 50 degrees C and 80 degrees C temperatures. The structural, chemical composition, surface morphology and magnetic properties of the electro deposited Ni-Fe-W-S thin films were studied. The chemical composition of the film was carried out by using Energy Dispersive X-ray spectroscopy (EDAX). The structural and morphology of the films were detected by using X-ray diffractometer (XRD) and Scanning Electron Microscope (SEM) respectively. The magnetic properties of the electro deposited Ni-Fe-W-S thin films were studied by using Vibrating Sample Magnetometer (VSM). The deposits of Ni-Fe-W-S thin films were found to be smooth, nano crystalline, adherence to the substrate. All the electro deposited films exhibit primitive FCC crystalline structure with crystalline size in the order of nano scale. Ni-Fe-W-S alloy thin films prepared at high temperature (80 c) were found to have higher magnetization value with lower coercivity (71.102 x 10(-3) emu, 338.66 G and 89.33 x 10(-3) emu, 332.80 G). Electro deposited Ni-Fe-W-S thin films exhibit good soft magnetic properties and are suitable for various electronic devices including high density recording media, magnetic actuators, magnetic shielding, and high performance transformer cores.