ELECTROCRYSTALLIZATION of Cu/Co MULTILAYERS IN-SITU MASS, INTERNAL STRESS and MAGNETIZATION MEASUREMENTS

摘要

The electrocrystallization of Cu-Co multilayers is investigated by means of simultaneous and in-situ mass and internal stress measurements using the double quartz crystal resonator technique. The magnetization is measured in-situ, during the electrodeposition, using an electrochemical alternating gradient magnetometer and the hysteresis loops are also recorded in situ. It is shown that at the beginning of cobalt deposition hydrogen evolution is the main reaction. The internal stress increases markedly. The magnetization results show that cobalt grows first as isolated mono-domain particles. With increasing cobalt layer thickness, hydrogen evolution becomes less important, and particles grow becoming multidomain.