THE VIBRATIONAL DYNAMICS OF THE ORDERED METALLICPd/Cu(100)SURFACE ALLOYS

R. Chadli (), A. Khater and R. Tigrine
Additional contact information
R. Chadli: Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri, B. P. 17, Tizi-Ouzou 15000, Algérie
A. Khater: Laboratoire de Physique de l'Etat Condensé, Université du Maine, Av. Olivier Messiaen, Cedex 09, Le Mans 72085, France
R. Tigrine: Laboratoire de Physique et Chimie Quantique, Université Mouloud Mammeri, B. P. 17, Tizi-Ouzou 15000, Algérie

Surface Review and Letters (SRL), 2012, vol. 19, issue 01, 1-9

Abstract: The vibrational properties of the three ordered metallic surface alloys,Cu(100)-c(2 × 2)-Pd,Cu(100)-(2 × 1)-Pd, andCu(100)-(2 × 2)-Pd, are presented. The phonon dispersions of vibrational modes as well as the local density of phonon states (LDOS) are calculated using matching theory associated with Green's function formalism. The calculated results are discussed and interpreted. In particular, the transfer of charge between thePdandCuatoms in the surface alloys modifies the surface boundary force constants, with resultant remarkable differences for the vibrational LDOS on thePdandCuatomic sites at thePd/Cu(100)surface, compared to the LDOS at the pureCu(100)surface. This may favor newPd-catalyzed reactions at such surface alloys systems.

Keywords: Surface alloys; surface phonons; LDOS (search for similar items in EconPapers)
Date: 2012
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X12500072
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:19:y:2012:i:01:n:s0218625x12500072

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X12500072

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().