Dynamical electron correlations in metals: TB-LMTO and multiband Hubbard Hamiltonian

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dc.creatorDrchal, V.
dc.creatorJanis, V.
dc.creatorKudrnovsky, J.
dc.date1998-10-15
dc.date.accessioned2026-07-25T23:43:41Z
dc.descriptionWe study electronic properties of solids with correlated d electrons which could be described by a multiband Hubbard Hamiltonian in the weak-interaction case, $U/w<1$. The one-electron part of the many-body Hamiltonian is described by a tight-binding LMTO method. The many-body part is treated by non-selfconsistent FLEX-type approximations with adjusted chemical potential not to change the LMTO band filling. The calculated DOS gets narrower but is only little influenced by electron correlations at the Fermi energy. A precursor of a satellite band in the paramagnetic bcc Ni is found at about 6 eV below the Fermi level in agreement with experiment.
dc.description13 pages, 6 PS figures; International Workshop on Electron Correlations and Materials Properties, Crete, Greece, June 28 - July 3, 1998
dc.identifierhttps://arxiv.org/abs/cond-mat/9810181
dc.identifierhttp://arxiv.org/abs/cond-mat/9810181
dc.identifier.urihttps://dspace.dare.co.zw/handle/123456789/100999
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleDynamical electron correlations in metals: TB-LMTO and multiband Hubbard Hamiltonian
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