Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 23, Issue 14, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/23/14/145501
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Funding
- Netherlands National Science Foundation (NWO)
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First principles calculations are performed for the interpretation of the L-2,L-3 x-ray absorption spectrum of calcium oxide and calcium fluoride. The first principles calculations are based on configuration interaction (CI) calculations using fully relativistic molecular spinors. The first principles results are compared to experimental data and also to calculations based on a semi-empirical crystal field multiplet model and also on a multichannel multiple scattering method. We show that the CI calculations show good agreement with experiment, both for bulk and for surface experiments. The remaining differences with experiment and between the theoretical models are discussed in detail.
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