Structural and thermal stabilities of Au@Ag core-shell nanoparticles and their arrays: A molecular dynamics simulation

Jia Hai-Hong^{1, 2}, Bao De-Liang^{1, 2}, Zhang Yu-Yang^{1, 2}, Du Shi-Xuan^{1, 2, †}

Percentage of the hcp, ico and other coordination atoms as a function of temperature. (a) Au x @Ag 4−x , (b) Au x @Ag 5−x , (c) Au x @Ag 6−x , (d) Au x @Ag 7−x . The insets are the corresponding snapshots of cross sections of nanoparticles. The snapshots are the structure at 0 K, 600 K and the melting temperature from left to right, respectively.