Explanation of XPS core-level angular distributions for single-crystal copper by two-beam Kikuchi-band theory

• Published in: Journal of electron spectroscopy and related phenomena 1980, Vol.21 (1), p.1-16
• Main Authors: Goldberg, S.M., Baird, R.J., Kono, S., Hall, N.F.T., Fadley, C.S.
• Format: Article
• Language: English
• ISSN: 0368-2048; 1873-2526
• DOI: 10.1016/0368-2048(80)85033-X

The azimuthal variation of core-level X-ray photoelectron peak intensities from a Cu(001) single crystal has been measured. Data were obtained for both eV) and Cu 3 p (KE = 1420 eV) over the full 2π azimuthal range for polar angles of 35.3 and 45° measured with respect to the specimen surface. T theoretical calculations based on a simplified two-beam model of Kikuchi-band effects, carried out by summing rectangular-shaped bands for the ten lowe in width, to be centered on the ( hkl) planes, and to have a height proportional to the hkl Fourier-coefficient of the crystal potential multipl approach is justified by comparison to two-beam and multiple-beam dynamical diffraction calculations performed previously for the channeling of high-en to make relatively accurate predictions of the observed fine structure in the azimuthal data for Cu 2 p 3 2 and Cu 3 p. The results of predictions of a more accurate model based upon single scattering from a cluster of atoms.