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  Comparative studies on field ionization at surface sites of Rh, Ag and Au—differences in local electric field enhancement

Suchorski, Y., Schmidt, W. A., Block, J. H., & Kreuzer, H. (1994). Comparative studies on field ionization at surface sites of Rh, Ag and Au—differences in local electric field enhancement. Vacuum, 45(2-3), 259-262. doi:10.1016/0042-207X(94)90184-8.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-945C-9 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-042B-2
Genre: Journal Article

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 Creators:
Suchorski, Yu1, 2, Author           
Schmidt, W. A.1, Author           
Block, Jochen H.1, Author           
Kreuzer, H.J.3, Author
Affiliations:
1Fritz Haber Institute, Max Planck Society, ou_24021              
2Technical University Lvov, Lvov, Ukraine, ou_persistent22              
3Department of Physics, Dalhousie University, Halifax, Nova Scotia B2H 3J5, Canada, ou_persistent22              

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 Abstract: Field ion imaging conditions were studied for clean Rh, and for Rh epitaxially covered with Ag and Au, respectively. Significant, metal-specific decreases of the image voltages have been observed. This is caused by different enhancements of local fields in the vicinity of protruding Rh, Ag and Au atoms due to their different electronic structures. The interpretation is based on self-consistent calculations of local electrostatic field distributions in the vicinity of single atoms adsorbed on a metal surface. For different facets of a surface, a close correlation between local field distributions and the degree of localization of the field ionization process is establihed from the measured full width at half maximum (FWHM) of field ion energy distributions and is discussed in association with possible field ionization mechanisms.

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Language(s): eng - English
 Dates: 1994
 Publication Status: Issued
 Pages: 4
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/0042-207X(94)90184-8
 Degree: -

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Title: Vacuum
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier B.V.
Pages: 4 Volume / Issue: 45 (2-3) Sequence Number: - Start / End Page: 259 - 262 Identifier: ISSN: 0042-207X
CoNE: https://pure.mpg.de/cone/journals/resource/954925450829