Surface segregation and surface electronic structure of PtCu alloys: Dependence on atomic coordination

Journal Article · Sun Mar 01 00:00:00 EST 1981 · J. Vac. Sci. Technol.; (United States)

DOI:https://doi.org/10.1116/1.570805· OSTI ID:6419949

Shek, M L; Stefan, P M; Weissman-Wenocur, D L; Pate, B B; Lindau, I; Spicer, W E

Ultraviolet photoemission experiments have been performed on the (110) and (111) single crystal surfaces of PtCu alloy. The difference in their surface atomic arrangements gives rise to different peak shapes in the Cu 3d-derived surface ''density of states''. The PtCu (110) sample, with 1.9--2.3 at. % Cu in the bulk, shows 5.6%--7.7% Cu near the surface. The PtCu(111) sample, in comparison, shows insignificant Cu surface segregation.

• Research Organization: Stanford Electronics Laboratories, Stanford University, Stanford, California 94305
• OSTI ID: 6419949
• Journal Information: J. Vac. Sci. Technol.; (United States), Vol. 18:2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER ALLOYS
ELECTRONIC STRUCTURE
PHOTOELECTRON SPECTROSCOPY
PLATINUM ALLOYS
AUGER ELECTRON SPECTROSCOPY
ELECTRON DIFFRACTION
MONOCRYSTALS
SEGREGATION
SPUTTERING
SURFACES
ULTRAHIGH VACUUM
ULTRAVIOLET RADIATION
X RADIATION
ALLOYS
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
ELECTROMAGNETIC RADIATION
ELECTRON SPECTROSCOPY
IONIZING RADIATIONS
PLATINUM METAL ALLOYS
RADIATIONS
SCATTERING
SPECTROSCOPY
360104* - Metals & Alloys- Physical Properties