Photoemission experiments and density functional calculations for the W(1 1 2) stepped surface with submonolayer Au coverages

Photoemission experiments and theoretical calculations for the system Au-stepped W(1 1 2), have been done at submonolayer coverage region ranging from 0.1 to 0.9 monolayers, for different sample orientations relative to the photon polarization, i.e. parallel and perpendicular to the steps direction....

Full description

Saved in:
Bibliographic Details
Published in:Surface science 2006-01, Vol.600 (2), p.249-256
Main Authors: Bozhko, S.I., Chaika, A.N., Ionov, A.M., Molodtsov, S.L., Vyalikh, D.V., Servedio, V.D.P.
Format: Article
Language:English
Subjects:
Band-structure calculations
Layer projected density of states
Low-dimensional structures
Photoemission
Stepped surfaces
Supercell calculations
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Photoemission experiments and theoretical calculations for the system Au-stepped W(1 1 2), have been done at submonolayer coverage region ranging from 0.1 to 0.9 monolayers, for different sample orientations relative to the photon polarization, i.e. parallel and perpendicular to the steps direction. Valence-band photoemission spectra of the Au/W(1 1 2) system demonstrate sharp angular dependent features at 4.5 and 0.3 eV binding energies when the photon polarization is parallel to the steps direction. Density functional theory calculations were performed for the Au/W(1 1 2) system with monolayer and half monolayer Au coverages in order to assign the origin of these features.
ISSN:0039-6028
1879-2758
DOI:10.1016/j.susc.2005.10.028