INTERDIFFUSION OF FE AND MG LAYERS DURING ANNEALING AND DEUTERIUM ABSORPTION

摘要

We compared the interdiffusion of a Ta/Mg/Fe/Ta/Pd thin film system after deuterium absorption and desorption at 250°C with an annealing of the film structure to 250°C. The combined x-ray and neutron reflectometry study shows that the layers start to interdiffuse at 250°C with the film structure still clearly visible. In contrast, after deuterium absorption and desorption the changes of the film structure are more severe. We observe an intermixing of the Mg/Fe/Ta/Pd layers with only the bottom Ta layer staying intact.