Watson, R.
, Herbst, J.
, Hodges, L.
, Lundqvist, B.
and Wilkins, J.
(1976),
Effect of Ground State and Excitation Potentials on Energy Levels of Ni Metal, Physical Review B (Condensed Matter and Materials Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=620109 (Accessed May 10, 2026)
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Effect of Ground State and Excitation Potentials on Energy Levels of Ni Metal
Published
Author(s)
R E. Watson, J F. Herbst, L Hodges, B I. Lundqvist, J W. Wilkins
Abstract
Self-consistent energy-band calculations for paramagnetic Ni have been performed in an effort to compare ground-state and excitationpotential prescriptions; potentials of the Hartree-Fock-Wigner-Seitz and Hedin-Lundqvist type are examined. We find the bandwidth and placement of the Fermi level within the bands to be rather insensitive to the choice of potential, while the absolute position of the bands with respect to the appropriate reference energy is potential dependent. Use of the Hedin-Lundqvist excitation potential instead of the ground-state potential produces level differences no greater than 0.1 eV.Citation
Physical Review B (Condensed Matter and Materials Physics)
Volume
13
Issue
4
Pub Type
Journals
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Citation
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Created February 15, 1976, Updated April 21, 2026