Photoionization Cross-Sections of the Ground and Excited Valence Electrons of Lanthanoids for the Study of Electronic Structure of Materials by X-ray Photoelectron Spectroscopy and Spectrum Calculation of Cluster Ce63O216
IF 0.9 4区 材料科学Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
V. G. Yarzhemskii, Yu. A. Teterin, M. V. Ryzhkov, A. Yu. Teterin
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引用次数: 0
Abstract
Photoionization cross-sections of atomic shells are essential for studying the electronic structure of materials using X-ray photoelectron spectroscopy. In the chemical bonding of lanthanoids with other atoms, electrons from both the ground-state configurations and excited states participate. However, existing tables only include photoionization cross-sections for the ground-state configurations of lanthanoids. In this work, photoionization cross-sections were calculated for both the ground and, for the first time, the excited states of lanthanoid atoms for photon energies of 1253.6 and 1486.6 eV. The calculations were based on relativistic wavefunctions of the self-consistent field obtained using the Dirac–Fock method. The application of these results to experimental X-ray photoelectron spectra of lanthanoid compounds is discussed, exemplified by the experimental spectrum of CeO2 and the first calculated spectrum of cluster Ce63O219.
期刊介绍:
Inorganic Materials is a journal that publishes reviews and original articles devoted to chemistry, physics, and applications of various inorganic materials including high-purity substances and materials. The journal discusses phase equilibria, including P–T–X diagrams, and the fundamentals of inorganic materials science, which determines preparatory conditions for compounds of various compositions with specified deviations from stoichiometry. Inorganic Materials is a multidisciplinary journal covering all classes of inorganic materials. The journal welcomes manuscripts from all countries in the English or Russian language.