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Surface concentration dependent structures of iodine on Pd(110)
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Materialfysik, MF (Stängd 20120101).
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Materialfysik, MF (Stängd 20120101).
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Materialfysik, MF (Stängd 20120101).
KTH, Skolan för informations- och kommunikationsteknik (ICT), Materialfysik (Stängd 20120101), Materialfysik, MF (Stängd 20120101).
Vise andre og tillknytning
2012 (engelsk)Inngår i: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 137, nr 20, s. 204703-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

We use photoelectron spectroscopy, low energy electron diffraction, scanning tunneling microscopy, and density functional theory to investigate coverage dependent iodine structures on Pd(110). At 0.5 ML (monolayer), a c(2 x 2) structure is formed with iodine occupying the four-fold hollow site. At increasing coverage, the iodine layer compresses into a quasi-hexagonal structure at 2/3 ML, with iodine occupying both hollow and long bridge positions. There is a substantial difference in electronic structure between these two iodine sites, with a higher electron density on the bridge bonded iodine. In addition, numerous positively charged iodine near vacancies are found along the domain walls. These different electronic structures will have an impact on the chemical properties of these iodine atoms within the layer.

sted, utgiver, år, opplag, sider
2012. Vol. 137, nr 20, s. 204703-
Emneord [en]
Core-Level Shifts, Overlayer Structure, Photoemission, Adsorption, Chemisorption, Pd(100), Metals, Faces
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-110074DOI: 10.1063/1.4768165ISI: 000312252100052Scopus ID: 2-s2.0-84870542517OAI: oai:DiVA.org:kth-110074DiVA, id: diva2:585477
Forskningsfinansiär
Swedish Research Council
Merknad

QC 20130110

Tilgjengelig fra: 2013-01-10 Laget: 2013-01-10 Sist oppdatert: 2017-12-06bibliografisk kontrollert

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