The Influence of the Substrate and External Magnetic Field Orientation on FeNi Film Growth

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Abstract
The magnetic field-assisted electrodeposition of iron–nickel thin films on different substrates (aluminum, silver, and brass) was investigated. The process was performed galvanostatically in a sulfate solution. The same chemical and electrical conditions were applied for each sample growth, but the time restrictions and the external magnetic field orientation were changeable. The obtained results show a variation of surface morphology and composition dependence on the selected surfaces as a consequence of the presence and orientation of the external magnetic field. We discussed that the FeNi crystal structure depends on the film thickness. The results show the reduction of the film thickness after the external magnetic field application—a decrease of deposition rate.The FeNi alloy’s morphology, composition, and magnetic properties were investigated by scanning electron microscopy (SEM), X-ray diffraction, energy dispersive X-ray spectroscopy (EDX), and Mössbauer spectroscopy (MS).
Funding Information
  • EU fund (POPW.01.03.00-20.034/09, POPW.01.03.00-20-004/11, WZ/WE-IA/2/2020)
  • Institute of Automation, Electronics and Electrotechnology Bialystok University of Technology for 2021 (POPW.01.03.00-20.034/09, POPW.01.03.00-20-004/11, WZ/WE-IA/2/2020)

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