Self-energy effects in the electronic structure of ce systems: Application to CeSi<inf>2</inf> and CeAl<inf>2</inf>

M. M. Sánchez-López, J. Costa-Quintana, F. López-Aguilar

Research output: Contribution to journalArticleResearchpeer-review

4 Citations (Scopus)

Abstract

We calculate the electronic structure of CeSi2 and CeAl2 using an energy-dependent potential arising from an approximation to the self-energy corresponding to a multiband Hubbard Hamiltonian. This potential is added to the local-density Hamiltonian and we determine the renormalized density of states. This density of states displays different peaks centred about -2.5eV, ±0.3eV, and 4eV with respect to E F, corresponding to the characteristic f features. We analyse these results and compare them with the previous data and theoretical interpretations of the electronic structure of these interesting materials. © 1994 IOP Publishing Ltd.
Original languageEnglish
Pages (from-to)235-240
JournalEPL
Volume27
Issue number3
DOIs
Publication statusPublished - 20 Jul 1994

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