Electrostatic fields above individual atoms

This review describes recent field ion microscopic measurements of local electrostatic fields in the immediate vicinity of individual surface atoms. The studies were stimulated and supported by self-consistent theoretical calculations on the field distribution close to single atoms of different elec...

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Bibliographic Details
Published in:Progress in surface science 1995, Vol.48 (1), p.121-134
Main Authors: Suchorski, Yu, Schmidt, W.A., Ernst, N., Block, J.H., Kreuzer, H.J.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electron and ion emission by liquids and solids
impact phenomena
Electron, positron and ion microscopes, electron diffractometers and related techniques
Exact sciences and technology
Field emission, ionization, evaporation, and desorption
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
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Summary:This review describes recent field ion microscopic measurements of local electrostatic fields in the immediate vicinity of individual surface atoms. The studies were stimulated and supported by self-consistent theoretical calculations on the field distribution close to single atoms of different electronic structure adsorbed on a metal surface in the presence of high external fields. The experimental and theoretical data establish the existence of strongly varying local field distributions above different surface atoms. New details concerning localized field ionization and image formation processes occurring in the field ion microscope are revealed.
ISSN:0079-6816
1878-4240
DOI:10.1016/0079-6816(95)93420-C