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Theoretical Investigation of XPS, UPS, and BIS in Rare‐Earth Compounds — Thulium Monochalcogenides
Author(s) -
Nizhnikova G. P.,
Farberovich O. V.
Publication year - 1989
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221550219
Subject(s) - thulium , delocalized electron , multiplet , rare earth , spectral line , electron , atomic physics , chemistry , conduction band , condensed matter physics , physics , doping , mineralogy , quantum mechanics
The investigation of electron spectra in thulium monosulphide and monoselenide is based on the calculations of relative intensities for multiplet transitions f N → f N ±1 in the intermediate coupling using the results of self‐consistent band calculations as a zero approximation of perturbation theory. Correct interpretation of all experimental data in rare‐earth compounds is shown to be actual only in the framework of the common calculational model of excitations from highly localized 4f‐states to delocalized band states.