Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2002-06-24
Phys. Rev. B 66, 085205 (2002)
Physics
Condensed Matter
Strongly Correlated Electrons
10 pages, 12 figures
Scientific paper
10.1103/PhysRevB.66.085205
We present calculations for the temperature-dependent electronic structure of the ferromagnetic semiconductor EuS. A combination of a many-body evaluation of a multiband Kondo-lattice model and a first-principles T=0--bandstructure calculation (tight-binding linear muffin-tin orbital (TB-LMTO)) is used to get realistic information about temperature- and correlation effects in the EuS energy spectrum. The combined method strictly avoids double-counting of any relevant interaction. Results for EuS are presented in terms of spectral densities, quasiparticle band structures and quasiparticle densities of states, and that over the entire temperature range.
Mueller Werner
Nolting Wolfgang
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