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

    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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