Pseudogap value in the energy spectrum of LaOFeAs: A fixed spin moment treatment

M. A. Korotin, S. V. Streltsov, A. O. Shorikov, V. I. Anisimov

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

The experimental data available to date in the literature corresponding to the paramagnetic-spin density wave transition in nonsuperconducting LaOFeAs are discussed. In particular, we note that a relative decrease in the density of states on the Fermi level and formation of a pseudogap occur upon a spin density wave transition. The values of these quantities are not properly described in density functional theory. The agreement with experimental estimations becomes more accurate with the use of a fixed spin moment procedure when the iron spin moment is set to m experimental value. Strong electron correlations that are not included m the present calculation scheme may lead both to a decrease in the spin moment and to a renormalization of the energy spectrum in the vicinity of the Fermi level for correct description of the discussed characteristics.

Original languageEnglish
Pages (from-to)649-652
Number of pages4
JournalJournal of Experimental and Theoretical Physics
Volume107
Issue number4
DOIs
Publication statusPublished - Oct 2008
Externally publishedYes

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