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Surface concentration dependent structures of iodine on Pd(110)
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Material Physics, MF (Closed 20120101).
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Material Physics, MF (Closed 20120101).
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Material Physics, MF (Closed 20120101).
KTH, School of Information and Communication Technology (ICT), Material Physics (Closed 20120101), Material Physics, MF (Closed 20120101).
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2012 (English)In: Journal of Chemical Physics, ISSN 0021-9606, E-ISSN 1089-7690, Vol. 137, no 20, 204703- p.Article in journal (Refereed) 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.

Place, publisher, year, edition, pages
2012. Vol. 137, no 20, 204703- p.
Keyword [en]
Core-Level Shifts, Overlayer Structure, Photoemission, Adsorption, Chemisorption, Pd(100), Metals, Faces
National Category
Chemical Sciences Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-110074DOI: 10.1063/1.4768165ISI: 000312252100052Scopus ID: 2-s2.0-84870542517OAI: oai:DiVA.org:kth-110074DiVA: diva2:585477
Funder
Swedish Research Council
Note

QC 20130110

Available from: 2013-01-10 Created: 2013-01-10 Last updated: 2017-12-06Bibliographically approved

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Yu, ShunWeissenrieder, Jonas

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Göthelid, MatsTymczenko, MichaelChow, WinnieAhmadi, SarehYu, ShunBruhn, BenjaminStoltz, Dunjavon Schenck, HenrikWeissenrieder, Jonas
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