TY - JOUR
T1 - Structure of the Co and Fe Kα3,4 satellite spectra
AU - Diamant, Reut
AU - Sharon, Ruth
AU - Caliebe, Wolfgang A.
AU - Kao, Chi Chang
AU - Deutsch, Moshe
PY - 2006/2/14
Y1 - 2006/2/14
N2 - The Kα3,4 satellite spectra, originating in the [1s2p]-1→ [2p]-2 transition, were measured with high resolution for Co and Fe, using photoexcitation by tunable monochromatized synchrotron radiation. Fits to a phenomenological sum of Voigt functions and to ab initio relativistic Dirac-Fock-calculated spectra resolved the structure underlying the spectra. The dependence of the satellites' intensity on the excitation energy yielded accurate values for the excitation thresholds. The shake-theory-based Thomas model was found to deviate from the measured intensities, indicating near-threshold major contributions from non-shake excitation processes, such as the knockout, or 'two step one,' effect.
AB - The Kα3,4 satellite spectra, originating in the [1s2p]-1→ [2p]-2 transition, were measured with high resolution for Co and Fe, using photoexcitation by tunable monochromatized synchrotron radiation. Fits to a phenomenological sum of Voigt functions and to ab initio relativistic Dirac-Fock-calculated spectra resolved the structure underlying the spectra. The dependence of the satellites' intensity on the excitation energy yielded accurate values for the excitation thresholds. The shake-theory-based Thomas model was found to deviate from the measured intensities, indicating near-threshold major contributions from non-shake excitation processes, such as the knockout, or 'two step one,' effect.
UR - http://www.scopus.com/inward/record.url?scp=31144464806&partnerID=8YFLogxK
U2 - 10.1088/0953-4075/39/3/018
DO - 10.1088/0953-4075/39/3/018
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AN - SCOPUS:31144464806
SN - 0953-4075
VL - 39
SP - 651
EP - 667
JO - Journal of Physics B: Atomic, Molecular and Optical Physics
JF - Journal of Physics B: Atomic, Molecular and Optical Physics
IS - 3
ER -