Magnetization of permalloy films

In this paper, we investigate the magnetic properties of the permalloy films prepared by local electrochemical deposition from a chloride electrolyte. The dependence of magnetization on the deposition mode, as well as on the composition and geometry of the local deposition, is analyzed. It is found that the magnetization of multielement concentrators makes it possible to extend the range of the magnetic field before reaching saturation. Using permalloy films with different Fe concentrations allows one to control the characteristics of magnetization. Permalloy films used to fabricate magnetic field concentrators improve the sensitivity of magnetic semiconductor microsystems.