Initial growth of Au on Ni(110): Surface alloying of immiscible metals

Initial growth of Au on Ni(110): Surface alloying of immiscible metals.

Surface alloying of immiscible metals induced by surface state shift

By using first principles calculations, it is found that the noble metal atoms Ag, Au and Cu would like to occupy the vacancy sites of the W(0 0 1) or Mo(0 0 1) surface to form the substitutional surface alloys, despite the fact that they do not like to form alloy in the bulk. The electronic local function (ELF) for these substitutional surface alloys shows that there is no obvious chemical bon...

Structural Transformation of Immiscible Metals Induced by Mechanical Alloying

X-ray absorption fine structure(XAFS) is used to investigate the local structural change of Fe60Cu40 and FegoCu20 with the ball milling time. The XAFS results verify that the solid solution of mechanically alloyed Fe-Cu samples are inhomogeneous. We propose that the bcc to fcc structural transformation of Fe small particles of Fe60Cuq0(160h) is induced by interfacial Cu atoms dissolving in smal...

Diffusion and surface alloying of gradient nanostructured metals

Gradient nanostructures (GNSs) have been optimized in recent years for desired performance. The diffusion behavior in GNS metals is crucial for understanding the diffusion mechanism and relative characteristics of different interfaces that provide fundamental understanding for advancing the traditional surface alloying processes. In this paper, atomic diffusion, reactive diffusion, and surface ...

Modifying the Cu(111) Shockley surface state by Au alloying

Z. M. Abd El-Fattah,1,2 M. Matena,2 M. Corso,2,3 M. Ormaza,4 J. E. Ortega,1,2,4 and F. Schiller1,2 1Centro de Fı́sica de Materiales (CSIC-UPV-EHU) and Materials Physics Center (MPC), E-20018 San Sebastián, Spain 2Donostia International Physics Center, Paseo Manuel Lardizábal 4, E-20018 Donostia–San Sebastián, Spain 3IKERBASQUE, Basque Foundation for Science, E-48011 Bilbao, Spain 4Departamento d...