Energies of Maxima and Oscillator Strengths of CaO Elementary Transition Bands Over a Wide Energy Range

Integral spectra of the imaginary parts of the dielectric permittivity ε 2 (E) and characteristic volume (–Im ε –1 ) and surface [–Im (1 + ε) –1 ] energy losses of calcium oxide were deconvoluted into elementary components in the range 6–40 eV. The main component parameters including the energies of...

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Bibliographic Details
Published in:Journal of applied spectroscopy 2016-09, Vol.83 (4), p.573-579
Main Authors: Sobolev, V. V., Merzlyakov, D. A., Sobolev, V. Val
Format: Article
Language:English
Subjects:
Analysis
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Calcium oxide
Calcium oxides
Electrons
Excitation spectra
Excitons
Lime
Oscillator strengths
Oscillators
Parameter identification
Physics
Physics and Astronomy
Surface energy
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Summary:Integral spectra of the imaginary parts of the dielectric permittivity ε 2 (E) and characteristic volume (–Im ε –1 ) and surface [–Im (1 + ε) –1 ] energy losses of calcium oxide were deconvoluted into elementary components in the range 6–40 eV. The main component parameters including the energies of maxima and oscillator strengths were determined using an improved non-parametric method of united Argand diagrams and the method of the effective number of valence electrons participating in the transitions. A total of 41 components with oscillator strengths in the range 0.001–0.22 were identified instead of the 14 maxima and shoulders of the integral spectra. They were caused by transverse and longitudinal exciton and interband transitions.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-016-0330-1