Intensities for polarized X-ray emission spectra are given by the elements of the density matrix expanded with respect to lattice harmonics. These intensities and densities of states for special values of the angular momentum and special representations of the point group are presented for Be, Mg, and Zn starting from a pseudopotential calculation. The energy dependence and the anisotropy of the radial integration is investigated. It is shown that the anisotropic spectra can be described excellently by located densities of states. Non-diagonal elements of the density matrix give the main contribution to the anisotropy of the LII, 111-spectrum of magnesium. The spectra are broadened and compared with experimental K-spectra. A good agreement is achieved, some discrepancy remains concerning the size of the anisotropy.Die Intensitaten polarisierter Rontgenemissionwpektren werden durch die Elemente der beziiglich der Gitterharmonischen entwickelten Dichtematrix dargestellt. Diese Intensitiiten und partielle Zustandsdichten zu speziellen Darstellungen der Punktgruppe des atomaren Platzes werden fiir Be, Mg und Zn aus einer Pseudopotentialrechnung gewonnen. Die Energieabhiingigkeit und die Anisotropy der radialen Integration werden untersucht. Es wird gezeigt, &I3 die anisotropen Spektren sehr gut durch lokalisierte Zustandsdichten beschrieben werden konnen. Die Anisotropie des LII, 111-Spektrums von Magnesium wird durch die Nichtdirtponalelemente der Dichtematrix bestimmt. Nach einer Faltung werden die Spektren mit experimentell gewonnenen K-Spektren verglichen. Es besteht eine gute Obereinstimmung, beziiglich der GroBe der Anisotropy treten noch Unterschiede auf.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2025 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.