MORPHOLOGY, MICROSTRUCTURE AND SOFT MAGNETIC PROPERTIES OF ELECTRODEPOSITED Fe-Ni-BASED TERNARY ALLOY FILMS

Soft magnetic films are used in many magnetic devices. They possess low coercivity and high magnetic permeability. Fe-Ni alloys are traditional soft magnetic materials that have been widely used for the last few decades. However, these films have poor magnetic saturation and mechanical properties. These properties can be improved by slightly including other transition metals such as Co, Cr, Mo, and W in the Fe-Ni-based alloy films. The electrodeposition technique is commonly employed for depositing Fe-Ni-based ternary alloy films. The properties of these ternary alloy films can be tuned by adjusting the deposition parameters such as current density, pH, temperature and concentration of electrolyte, and additives. This chapter provides a detailed overview of the various ternary alloy films based on Fe-Ni alloy and the influence of the deposition parameters on the magnetic properties.