Title

Imaging of Cu(001) atoms by a new differential approach to photoelectron holography

Authors

Authors

S. Omori; Y. Nihei; E. Rotenberg; J. D. Denlinger; S. D. Kevan; B. P. Tonner; M. A. Van Hove;C. S. Fadley

Abbreviated Journal Title

J. Electron Spectrosc. Relat. Phenom.

Keywords

photoelectron diffraction; photoelectron holography; differential; holography; copper; ELECTRON-EMISSION HOLOGRAPHY; MULTIPLE-SCATTERING; DIFFRACTION; PATTERNS; IMAGES; Spectroscopy

Abstract

We have applied a new differential method of photoelectron holography to both experimental and theoretical multiple-energy photoelectron diffraction data for Cu 3p bulk emission from Cu(001). Dominant forward-scattering effects contained in a normalized hologram chi (k) have been eliminated by taking the k-difference delta chi (k) along each direction k. Two data sets that are different in k-space sampling ranges and densities have been analyzed to compare atomic images reconstructed from chi and delta chi In both cases, the original scheme has yielded only very weak images of back-scattering atoms and spurious features in the forward-scattering directions. On the other hand, the differential scheme has been found to be successful in suppressing the forward-scattering effects to image not only side-scattering and back-scattering atoms in either case, but also forward-scattering atoms in one of the two cases. (C) 2001 Elsevier Science BN; All rights reserved.

Journal Title

Journal of Electron Spectroscopy and Related Phenomena

Volume

114

Publication Date

1-1-2001

Document Type

Article; Proceedings Paper

Language

English

First Page

455

Last Page

460

WOS Identifier

WOS:000167832700069

ISSN

0368-2048

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