Momentum-resolved spectral functions of SrVO$_3$ calculated by LDA+DMFT

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dc.creatorNekrasov, I. A.
dc.creatorHeld, K.
dc.creatorKeller, G.
dc.creatorKondakov, D. E.
dc.creatorPruschke, Th.
dc.creatorKollar, M.
dc.creatorAndersen, O. K.
dc.creatorAnisimov, V. I.
dc.creatorVollhardt, D.
dc.date2005-08-12
dc.date.accessioned2026-07-07T06:29:42Z
dc.date.available2026-07-07T06:29:42Z
dc.descriptionLDA+DMFT, the merger of density functional theory in the local density approximation and dynamical mean-field theory, has been mostly employed to calculate k-integrated spectra accessible by photoemission spectroscopy. In this paper, we calculate k-resolved spectral functions by LDA+DMFT. To this end, we employ the Nth order muffin-tin (NMTO) downfolding to set up an effective low-energy Hamiltonian with three t_2g orbitals. This downfolded Hamiltonian is solved by DMFT yielding k-dependent spectra. Our results show renormalized quasiparticle bands over a broad energy range from -0.7 eV to +0.9 eV with small ``kinks'', discernible in the dispersion below the Fermi energy.
dc.description21 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0508313
dc.identifierhttp://arxiv.org/abs/cond-mat/0508313
dc.identifierPRB 73, 155112 (2006)
dc.identifierdoi:10.1103/PhysRevB.73.155112
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/98124
dc.subjectStrongly Correlated Electrons
dc.titleMomentum-resolved spectral functions of SrVO$_3$ calculated by LDA+DMFT
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