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cond-mat.str-el2003★ 59 cited
Quantum lattice dynamical effects on the single-particle excitations in 1D Mott and Peierls insulators
H. Fehske, G. Wellein, G. Hager +2
As a generic model describing quasi-one-dimensional Mott and Peierls insulators, we investigate the Holstein-Hubbard model for half-filled bands using numerical techniques. Combini…
cond-mat.str-el2003★ 1 cited
Lattice and superexchange effects in doped CMR manganites
Alexander Weisse, Holger Fehske
We report on the influence of the lattice degrees of freedom on charge, orbital and spin correlations in colossal magnetoresistance (CMR) manganites. For the weakly doped compounds…
cond-mat.str-el2003★ 13 cited
Mixed-phase description of colossal magnetoresistive manganites
Alexander Weiße, Jan Loos, Holger Fehske
In view of recent experiments, indicating the spatial coexistence of conducting and insulating regions in the ferromagnetic metallic phase of doped manganites, we propose a refined…