123 citations · 408 across the 8 of their papers we have counts for
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Manganites at Quarter Filling: Role of Jahn-Teller Interactions
Jan Bała, Peter Horsch, Frank Mack
We have analyzed different correlation functions in a realistic spin-orbital model for half-doped manganites. Using a finite-temperature diagonalization technique the CE phase was…
Optical conductivity of doped manganites: Comparison of ferromagnetic Kondo Lattice Models with and without orbital degeneracy
Frank Mack, Peter Horsch
The optical conductivity of the double exchange and the orbital degenerate Kondo lattice Hamiltonian (orbital t-J model) are invetigated by means of finite temperature diagonalizat…
Theoretical study of the optical conductivity of
Mario Cuoco, Peter Horsch, Frank Mack
Using finite temperature diagonalization techniques it is shown that the quarter-filled t-J-V model on a trellis lattice structure provides a quantitative explanation of the highly…
Optical conductivity in doped manganites with planar x-y orbital order
Frank Mack, Peter Horsch
We investigate a planar model for the ferromagnetic (FM) phase of manganites, which develops orbital order of electrons with x-y-symmetry at low temperature. The dyna…
Orbital dynamics in ferromagnetic transition metal oxides
Jeroen van den Brink, Peter Horsch, Frank Mack +1
We consider a model of strongly correlated electrons interacting by superexchange orbital interactions in the ferromagnetic phase of LaMnO. It is found that the classical…
Optical conductivity of colossal magnetorestistance compounds: Role of orbital degeneracy in the ferromagnetic phase
Peter Horsch, Janez Jaklic, Frank Mack
Recent optical conductivity experiments have revealed an anomalous spectral distribution in the ferromagnetic phase of the perovskite system . Using finit…
A new view of the electronic structure of the spin-Peierls compound alpha'-NaV2O5
P. Horsch, F. Mack
The present understanding of the electronic and magnetic properties of -NaVO is based on the hypothesis of strong charge disproportionation into V and V,…
Double exchange magnets: Spin-dynamics in the paramagnetic phase
Peter Horsch, Janez Jaklic, Frank Mack
The electronic structure of perovskite manganese oxides is investigated in terms of a Kondo lattice model with ferromagnetic Hund coupling and antiferromagnetic exchange between $t…