Self-consistent GW and higher-order calculations of electron states in metals

Eric L. Shirley
Phys. Rev. B 54, 7758 – Published 15 September 1996
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Abstract

Past work, treating simple metals in the GW approximation, has largely neglected effects of self-consistency and higher-order vertex corrections on occupied bandwidths. This work presents self-consistent GW results, plus nearly self-consistent higher-order results, for jellium, illustrating that both effects are large, yet largely canceling (e.g., 0.65-eV effects on the sodium bandwidth, but a combined effect of only 0.13 eV). This supports findings that many-body effects substantially reduce such bandwidths.

  • Received 6 June 1996

DOI:https://doi.org/10.1103/PhysRevB.54.7758

©1996 American Physical Society

Authors & Affiliations

Eric L. Shirley

  • National Institute of Standards and Technology, Optical Technology Division, Gaithersburg, Maryland 20899

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Issue

Vol. 54, Iss. 11 — 15 September 1996

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