Pseudomorphic behaviour and interdiffusion between palladium films and silver and gold

Structural and electronic properties ofAg−Pdsuperlattices

“…[7][8][9][10] Heterostructures built from alternating layers of deposited Ag and Pd have been studied experimentally in the past few years using x-ray diffraction (XRD), synchrotron-radiation induced photoelectron spectroscopy (SR-PES), atomic force microscopy, scanning tunneling microscopy (STM) and many other techniques. [11][12][13][14][15][16][17][18][19][20][21] At room temperature Ag and Pd have been described as growing layer by layer on each other. Standard properties are still controversial, as both metals have been observed to grow on the other with their own lattice parameter as well as pseudo-morphically.…”

“…Standard properties are still controversial, as both metals have been observed to grow on the other with their own lattice parameter as well as pseudo-morphically. 14,15,22 In superlattices, root-mean-squared interface roughness can be lowered to about 1 atomic layer 21 but interdiffusion occurs above 200°C. 13,16,[18][19][20][21] Much is known about thick multilayers of Ag and Pd, about the epitaxial growth of the metals on each other, and about their interdiffusion and alloy formation.…”

Demixing processes in AgPd superlattices

“…Ag) grows pseudomorphically on Ag(111) (resp. Pd(111)) [17,18,19,20,21,22]. However, while Ag grows layer-by-layer on Pd(111) [23], a columnar structure (i.e.…”