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Updated: Aug 7, 2026

Quantitative Atomic-Site Analysis of Functional Dopants/Point Defects in Crystalline Materials by Electron-Channeling-Enhanced Microanalysis
Published on: May 10, 2021
Influence of electronic correlations on the ground-state properties of cerium dioxide
Elena Voloshina1, Beate Paulus
1Max-Planck-Institut für Physik komplexer Systeme, Nöthnitzer Strasse 38, D-01187 Dresden, Germany. velena@mpipks-dresden.mpg.de
Abstract:
The electron-correlation effects on the ground-state properties of CeO(2) are studied by ab initio quantum-chemical methods. For this purpose the method of increments is applied. It combines Hartree-Fock calculations for periodic systems with correlation calculations requiring only information of the corresponding finite-cluster calculations. Using the coupled-cluster approach for the evaluation of the individual increments, we recover 93% of the experimental cohesive energy. The lattice constant and bulk modulus are found to be in good agreement with experimental values. For comparison also the results obtained with density functional methods are presented.
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