The application of the chain method to electron emission

Lindsay, R N; Pendry, J. B.

doi:10.1088/0022-3719/11/5/022

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…The dynamic theory of photoelectron diffraction (PD) has been developed by some workers [19][20][21]. In their Green function forma:ism the multiple-scattering effect was considered in terms of the t-matrix method.…”

Section: Description Of the Msc Methods Of Nexafsmentioning

confidence: 99%

Multiple-scattering approaches to carbon K-shell near-edge X-ray absorption fine structure of graphite

Zou

Tang

1994

J. Phys.: Condens. Matter

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The multiple-scattering cluster method was first employed to calculate the theoretical near-edge X-ray absorption fine structure (NEXAFS) spectrum of graphite. Studies on the polarization dependence on the incident vector E classify spectral features into pi and sigma resonances. Characterization of the carbon K-shell NEXAFS spectra of the species modelled by both a single layer and a multilayer has been performed. It reveals that a pi * resonance originally located at around 989 eV splits with the accumulation of the number of atoms included in the cluster. Multilayer calculation has little influence on the NEXAFS spectrum. Our calculation coincides with the experimental results fairly well. In addition, it has been found to be in good agreement with the final density of states derived from band-structure calculations.

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Section: Description Of the Msc Methods Of Nexafsmentioning

confidence: 99%

Multiple-scattering approaches to carbon K-shell near-edge X-ray absorption fine structure of graphite

Zou

Tang

1994

J. Phys.: Condens. Matter

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“…At electron energies of ~ 1000 eV, the individual electronatom interactions will lead to elastic scattering that is highly peaked in the forward direction. 10 " 16 Partial-wave analyses of such scattering are cumbersome because of the large number of phase shifts which must be computed, 12 ' 13 ' 16 but it is expected that simpler calculations based upon the Born approximation or other perturbative approaches will provide a reasonable first-order description. 10 ' 12 If the scattering angle is 0', Born calculations of the differential cross sections \f{Q')\ 2 for O Is photoelectrons at 952 eV scattering from atomic Cu and O yield forwardscattering peaks with FWHM values of only ~ 10° and ~20°, respectively, 10 in good agreement with a partial-wave analysis for Cu at 680 eV.…”

mentioning

confidence: 99%

Azimuthal Anisotropy in Deep Core-Level X-Ray Photoemission from an Adsorbed Atom: Oxygen on Copper(001)

et al. 1978

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For oxygen adsorbed on a Cu(OOl) surface, the O Is x-ray photoelectron intensity is found to exhibit a complex azimuthal anisotropy with an overall amplitude of ~ 26% for a grazing 10° angle of emission. No significant anisotropy is observed at 45°. Several reasons for expecting a direct relationship between such final-state scattering effects and atomic geometry are discussed, and the data are found to be suggestive of a surfacechemisorbed c(2x2) oxygen overlayer in fourfold coordination.

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