ANOMALOUSLY WEAK ADSORPTION OF CU ON SIO2 AND MGO SURFACES

Authors
ZHOU JB LU HC GUSTAFSSON T GARFUNKEL E
Citation
Jb. Zhou et al., ANOMALOUSLY WEAK ADSORPTION OF CU ON SIO2 AND MGO SURFACES, Surface science, 293(3), 1993, pp. 120000887-120000892
Citations number
17
Categorie Soggetti
Chemistry Physical
Journal title
Surface science → ACNP
ISSN journal
00396028
Volume
293
Issue
3
Year of publication
1993
Pages
120000887 - 120000892
Database
ISI
SICI code
0039-6028(1993)293:3<120000887:AWAOCO>2.0.ZU;2-T
Abstract
Using medium-energy ion-scattering (MEIS) as an in situ probe of cover age, we have investigated the adsorption of Cu on SiO2 and MgO(001) su rfaces at 300 K. For the clean surfaces, only 35% (Cu/SiO2) and 50% (C u/MgO) of the initially incident Cu atoms stick to the surfaces and ar e detected by MEIS. Our results are discussed in terms of a model in w hich desorption competes with migration and sticking of Cu adatoms ont o defects and growing Cu nuclei.