COMPOSITION AND STRUCTURE OF THE CU85PD15(110) (2X1) SURFACE - A LOW-ENERGY ION-SCATTERING INVESTIGATION

Authors
BERGMANS RH VANDEGRIFT M VANDERGON AWD VANWELZENIS RG BRONGERSMA HH FRANCIS SM BOWKER M
Citation
Rh. Bergmans et al., COMPOSITION AND STRUCTURE OF THE CU85PD15(110) (2X1) SURFACE - A LOW-ENERGY ION-SCATTERING INVESTIGATION, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 85(1-4), 1994, pp. 435-438
Citations number
7
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
85
Issue
1-4
Year of publication
1994
Pages
435 - 438
Database
ISI
SICI code
0168-583X(1994)85:1-4<435:CASOTC>2.0.ZU;2-W
Abstract
We have investigated the composition and structure of the outermost tw o layers of the Cu85Pd15(110) (2 x 1) surface using low-energy ion sca ttering. Time-of-flight forward scattering and recoiling measurements show that the surface is unreconstructed. From the energy and azimutha l distributions of backscattered 2 keV Ne+ ions as obtained with the E ARISS (energy and angular resolved ion scattering spectrometer) it is concluded that the first layer is possibly depleted in Pd whereas the second layer is strongly enriched. These results are in agreement with a previously proposed model for the surface based on LEED, angle reso lved XPS and TPD measurements.