A diffusion marker in Au/Sn thin films

Abstract Argon was implanted into Au/Sn thin films to study the relative rates of diffusion of the two metals using Rutherford backscattering spectroscopy for analysis. The experiments indicate that the argon functions as a true Kirkendall marker. Under this assumption, it was found that gold diffuses through a layer of AuSn about three times faster than tin does.