Thermal desorption of strained monoatomic Ag and Au layers from Ru(001)

Journal Article · Wed Jul 01 00:00:00 EDT 1987 · J. Vac. Sci. Technol., A; (United States)

DOI:https://doi.org/10.1116/1.574331· OSTI ID:6512424

Niemantsverdriet, J W; Dolle, P; Markert, K; Wandelt, K

Model-independent or complete analysis of thermal desorption spectra suggests, in agreement with low-energy electron diffraction, that attractive lateral interactions between Ag atoms on a Ru(001) substrate lead to island formation for Ag coverages above 0.15 ML, with zeroth-order desorption kinetics and coverage-independent activation energy of desorption E, and preexponential factor ..nu... For the system Au/Ru(001), on the other hand, E and ..nu.. decrease monotonically with coverage, indicating that Au--Au interactions on Ru(001) are repulsive. For THETA/sub Ag/<0.15 and THETA/sub Au/<1 the systems exhibit a clear compensation effect between E and ..nu...

• Research Organization: Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-1000 Berlin 33, West Germany
• OSTI ID: 6512424
• Journal Information: J. Vac. Sci. Technol., A; (United States), Journal Name: J. Vac. Sci. Technol., A; (United States) Vol. 5:4; ISSN JVTAD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals &amp; Alloys-- Physical Properties
COHERENT SCATTERING
DESORPTION
DIFFRACTION
ELECTRON DIFFRACTION
ELEMENTS
FILMS
GOLD
KINETICS
METALS
PLATINUM METALS
RUTHENIUM
SCATTERING
SILVER
SORPTIVE PROPERTIES
SURFACE PROPERTIES
THIN FILMS
TRANSITION ELEMENTS