Photoelectron diffraction and holography: Present status and future prospects

C. S. Fadley, S. Thevuthasan, A. P. Kaduwela, C. Westphal, Y. J. Kim, R. Ynzunza, P. Len, E. Tober, F. Zhang, Z. Wang, S. Ruebush, A. Budge, M. A. Van Hove

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    Abstract

    Photoelectron diffraction and photoelectron holography, a newly developed variant of it, can provide a rich range of information concerning surface structure. These methods are sensitive to atomic type, chemical state, and spin state. The theoretical prediction of diffraction patterns is also well developed at both the single scattering and multiple scattering levels, and quantitative fits of experiment to theory can lead to structures with accuracies in the ±0.03 Å range. Direct structural information can also be derived from forward scattering in scanned-angle measurements at higher energies, from path length differences contained in scanned-energy data at lower energies, and from holographic inversions of data sets spanning some region in angle and energy space. Diffraction can also affect average photoelectron emission depths. Circular dichroism in core-level emission can be fruitfully interpreted in terms of photoelectron diffraction theory, as can measurements with spin-resolved core-spectra, and studies of surface magnetic structures and phase transitions should be possible with these methods. Synchrotron radiation is a key element of fully utilizing these techniques.

    Original languageEnglish
    Pages (from-to)19-47
    Number of pages29
    JournalJournal of Electron Spectroscopy and Related Phenomena
    Volume68
    Issue numberC
    DOIs
    Publication statusPublished - 6 May 1994

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    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Radiation
    • Atomic and Molecular Physics, and Optics
    • Condensed Matter Physics
    • Spectroscopy
    • Physical and Theoretical Chemistry

    Cite this

    Fadley, C. S., Thevuthasan, S., Kaduwela, A. P., Westphal, C., Kim, Y. J., Ynzunza, R., Len, P., Tober, E., Zhang, F., Wang, Z., Ruebush, S., Budge, A., & Van Hove, M. A. (1994). Photoelectron diffraction and holography: Present status and future prospects. Journal of Electron Spectroscopy and Related Phenomena, 68(C), 19-47. https://doi.org/10.1016/0368-2048(94)02101-5