OBSERVATION OF AN SP-DERIVED SURFACE RESONANCE ON PT(111) INDICATING THE CRUCIAL ROLE OF SURFACE-STATES IN PHYSISORPTION

Authors
ROOS P BERTEL E RENDULIC KD
Citation
P. Roos et al., OBSERVATION OF AN SP-DERIVED SURFACE RESONANCE ON PT(111) INDICATING THE CRUCIAL ROLE OF SURFACE-STATES IN PHYSISORPTION, Chemical physics letters, 232(5-6), 1995, pp. 537-541
Citations number
32
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Chemical physics letters → ACNP
ISSN journal
00092614
Volume
232
Issue
5-6
Year of publication
1995
Pages
537 - 541
Database
ISI
SICI code
0009-2614(1995)232:5-6<537:OOASSR>2.0.ZU;2-A
Abstract
High-resolution angle-resolved photoemission of Pt(111) reveals the pr esence of an sp-derived surface resonance close to E(F) in the centre of the surface Brillouin zone. Similar surface states are found on all (111) faces of the d(9) transition and the noble metals with the only exception of Pd(111). This finding is used to explain previous observ ations of an exceptional physisorption behaviour of Pd(111) towards Xe and H-2. The results strongly suggest that surface states crucially i nfluence the physisorption potential on metal surfaces.