Layer intermixing in ultrathin Cr/Be layered system and impact of barrier layers on interface region

Effect of low-temperature oxidation and heat treatment under vacuum on the Al–Be interdiffusion process

“…First of all, it should be noted that the presence of an intermetallic component in the spectrum, corresponding to the interaction of beryllium and another metal, which was observed in other beryllium-metal systems, 13–15 was not expected in a considered system. 16,17 In the case of the XPS method implementation, the mixing of the layers cannot be identified through analysis of peak shifts in photoelectron spectra.…”