Journal Article

PreJuSER-48850

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of dynamical Coulomb correlations on the Fermi surface of Na_0.3CoO_2

Ishida, H. ; Johannes, M. ; Liebsch, A.FZJ*

2005
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/1422  doi:10.1103/PhysRevLett.94.196401

Abstract: The t(2g) quasiparticle spectra of Na0.3CoO2 are calculated within the dynamical mean field theory. It is shown that as a result of dynamical Coulomb correlations charge is transferred from the nearly filled e(g)(') subbands to the a(1g) band, thereby reducing orbital polarization among Co t(2g) states. Dynamical correlations therefore stabilize the small e(g)(') Fermi surface pockets, in contrast to angle-resolved photoemission data, which do not reveal these pockets.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Theorie I (IFF-TH-I)

Research Program(s):

1. Kondensierte Materie (M02)

Appears in the scientific report 2005
Notes: This version is available at the following Publisher URL: http://prl.aps.org

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