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The CrK Series X‐Ray Emission Spectra
Author(s) -
Sørum H.,
Weng O. M.,
Bremer J.
Publication year - 1982
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.2221090136
Subject(s) - excited state , atomic physics , spectral line , auger , full width at half maximum , physics , radiative transfer , optics , astronomy
The electron‐excited CrK series X‐ray spectra are investigated by means of curved crystal spectrometry, permitting at the same time high intensity and resolution. No directly observable fine structures are found for α 1,2 and β 1, 3 . Low‐energy satellites as well as weak high‐energy satellites are, however, found both for α 1,2 and β 1,3 . A low‐energy satellite may be present also for β 5 . The high‐energy satellites for the α‐doublet are most probably due to a spectator vacancy in the M‐level and/or in the valence band V, corresponding to the transitions KM → LM, KV → LV, respectively. Similarly the β 1,3 ‐structure may contain contributions from the transitions KM → LM and/or KV → MV. In addition to the structure caused by interaction between the final‐state hole and the unfilled 3d‐level the radiative Auger effects K → LV, K → MV, and K → VV are probably present at the low‐energy side of the lines. The FWHM value for α 1 is (1.90 ± 0.05), for α 2 (2.60 ± 0.05), for β 1,3 (2.68 ± 0.05), and for β 5 (4.9 ± 0.1) eV. The spin‐orbit split between the 3p 3/2 and 3p 1/2 levels is measured for the first time to be 0.74 eV for Cr, a value which is thus considerably less than the theoretical value of 1.06 eV.