Crossref journal-article
Wiley
Berichte der Bunsengesellschaft für physikalische Chemie (311)
Abstract

AbstractESR is not one of the standard surface science tools because it is not inherently surface sensitive but rather probes the entire sample. However, ESR can be made into a surface science tool if we use paramagnetic adsorbates on thin nonmagnetic transition metal substrates or transition metal oxide films interacting with paramagnetic or nonmagnetic adsorbates. In contrast to NMR, ESR exhibits a sensitivity which allows one to detect monolayer and submonolayer coverages of spins (>1012 spins). The experiments can be carried out either in ultrahigh vacuum (UHV) or under an ambient gas atmosphere. — ESR provides us with the unique opportunity to study adsorbate dynamics by studying line shape changes as a function of temperature. ESR is also sensitive to molecular orientation so that the orientation distribution of the molecular planes may be derived experimentally. Thus ESR allows us to derive information not easily accessible with other techniques. We describe the set up of a UHV/ESR experiment in which the ESR measurement may be combined with LEED/Auger and TDS experiments. Several types of results are discussed: ESR of chemisorbed and physisorbed molecules on metal surfaces including angle dependent measurements. ESR of molecules on oxide surfaces at submonolayers coverages. We will touch on possible future experiments involving pulsed ESR techniques to study dynamics in the adsorbate for a wide variety of processes including rotation and diffusion.

Bibliography

Katter, U. J., Schlienz, H., Beckendorf, M., & Freund, H. ‐J. (1993). Electron Spin‐Resonance (ESR) Studies of Adsorbate Dynamics on Single Crystal Surfaces: Possibilities and Limitations. Berichte Der Bunsengesellschaft Für Physikalische Chemie, 97(3), 340–352. Portico.

Authors 4
  1. U. J. Katter (first)
  2. H. Schlienz (additional)
  3. M. Beckendorf (additional)
  4. H.‐J. Freund (additional)
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Dates
Type When
Created 13 years, 1 month ago (July 26, 2012, 6:15 a.m.)
Deposited 1 year, 10 months ago (Oct. 24, 2023, 10:49 p.m.)
Indexed 1 year, 2 months ago (June 12, 2024, 9:12 a.m.)
Issued 32 years, 6 months ago (March 1, 1993)
Published 32 years, 6 months ago (March 1, 1993)
Published Online 15 years, 3 months ago (May 8, 2010)
Published Print 32 years, 6 months ago (March 1, 1993)
Funders 0

None

@article{Katter_1993, title={Electron Spin‐Resonance (ESR) Studies of Adsorbate Dynamics on Single Crystal Surfaces: Possibilities and Limitations}, volume={97}, ISSN={0005-9021}, url={http://dx.doi.org/10.1002/bbpc.19930970316}, DOI={10.1002/bbpc.19930970316}, number={3}, journal={Berichte der Bunsengesellschaft für physikalische Chemie}, publisher={Wiley}, author={Katter, U. J. and Schlienz, H. and Beckendorf, M. and Freund, H.‐J.}, year={1993}, month=mar, pages={340–352} }