Влияние структуры пленок Co – Ni – Fe, полученных электрохимическим осаждением, на магнитные свойства

Abstract

An analysis of the crystal structure and composition of Co – Ni – Fe films was carried out and the influence of the deposition rate on the conversion of a weak magnetic field into a magnetic induction dB/dH was established. The presence of oxygen on the surface of the films indicates the porosity of the structure of the Co – Ni – Fe films, which is confirmed by the roughness of the morphology. Electrochemical deposition from a chloride electrolyte showed the possibility of controlling the magnetic properties of films while improving the deposition method. Chloride electrolyte with filtration, additives of boric acid, saccharin and hydrochloric acid at a ratio of concentrations CCo:CNi:CFe = 1: 1: 1 with a temperature of 70 °C provides reproducible electrochemical deposition of Co – Ni – Fe films with low mechanical stresses, with a uniform structure and with a high gain of a weak magnetic field in magnetic induction.