Bibliographic Citation
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Title | Identification of reconstruction in Pt films deposited on Pd(110) at room temperature |
Creator/Author | Schmitz, P.J. ; Leung, W. ; Kang, H.C. ; Thiel, P.A. (Department of Chemistry and Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)) |
Publication Date | 1991 Dec 15 |
OSTI Identifier | OSTI ID: 5654914 |
DOE Contract Number | W-7405-ENG-82 |
Other Number(s) | ISSN0163-1829; CODEN: PRBMD |
Resource Type | Journal Article |
Resource Relation | Physical Review, B: Condensed Matter ; Vol/Issue: 44:24; DOE Project |
Subject | 360102 -- Metals & Alloys-- Structure & Phase Studies ;360101 -- Metals & Alloys-- Preparation & Fabrication; CARBON MONOXIDE-- ADSORPTION;PALLADIUM-- VACUUM COATING;PLATINUM-- DEPOSITION; AMBIENT TEMPERATURE;ANNEALING;AUGER EFFECT;ELECTRON DIFFRACTION;EPITAXY;THIN FILMS |
Related Subject | CARBON COMPOUNDS;CARBON OXIDES;CHALCOGENIDES;COHERENT SCATTERING;DEPOSITION;DIFFRACTION;ELEMENTS;FILMS;HEAT TREATMENTS;METALS;OXIDES;OXYGEN COMPOUNDS;PLATINUM METALS;SCATTERING;SORPTION;SURFACE COATING;TRANSITION ELEMENTS |
Description/Abstract | We have studied the properties of Pt films on Pd(110), grown by deposition at 300 K and annealed up to 900 K, using low-energy electron diffraction and Auger-electron spectroscopy.^We observe (1{times}2) and (1{times}3) superstructures, depending upon Pt coverage and annealing temperature.^At one monolayer, the (1{times}1) periodicity is unperturbed.^Between one and three monolayers, a broad and streaky (1{times}2) develops upon annealing, then fades to (1{times}1) as the film dissolves.^At three monolayers and above, the broad and streaky (1{times}2) splits to a (1{times}3), then fades again to (1{times}1) at high temperature.^Adsorption of CO causes (1{times}3){r arrow}(1{times}1) reversion at relatively low temperature, 430 K. Based upon the known behavior of Pt(110) reconstructions, this is strong evidence that the (1{times}3) structure of the Pt film is a surface reconstruction. |
Country of Publication | United States |
Language | English |
Format | Pages: 13734-13739 |
System Entry Date | 2001 May 13 |
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