Ab initio calculations of the dynamical response of copper

Physical Review B - Condensed Matter and Materials Physics

Volumn 59, Issue 19, 1999, Pages 12188-12191

  Campillo, I ^a   Rubio, A ^b   Pitarke, J M ^a  

^a UNIVERSITY OF THE BASQUE COUNTRY UPV EHU   (Spain)

^b UNIVERSITY OF VALLADOLID   (Spain)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000745904     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.59.12188     Document Type: Article

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35. We have also solved Eq. (1) with all off-diagonal elements of the polarizability excluded, and we have found quantitative deviations from the full calculations of about 10–20 % for energies above 30 eV. Calculations, as obtained with inclusion of local-field effects, have ben performed with use of (Formula presented) (Formula presented), and (Formula presented) vectors in Eq. (1), and the results presented here have been found to be well converged, for all values of the wave vector (Formula presented) used in our calculations, with 15 (Formula presented) vectors in the representation of the matrix (Formula presented).
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