Energetics and diffusion of point defects in Au/Ag metals: A molecular dynamics study
Liu Zhi-Yong, He Bin, Qu Xin, Niu Li-Bo, Li Ru-Song, Wang Fei
       

Plots of total energy versus reaction coordinate for mono-vacancy diffusing into its 1NN, 2NN, and 3NN in (a) Au and (b) Ag metal.