77 citations · 121 across the 2 of their papers we have counts for
5 papers
Wigner crystallization in Na(3)Cu(2)O(4) and Na(8)Cu(5)O(10) chain compounds
P. Horsch, M. Sofin, M. Mayr +1
We report the synthesis of novel edge-sharing chain systems Na(3)Cu(2)O(4) and Na(8)Cu(5)O(10), which form insulating states with commensurate charge order. We identify these syste…
Theory of optical spectral weights in Mott insulators with orbital degrees of freedom
Giniyat Khaliullin, Peter Horsch, Andrzej M. Oles
Introducing partial sum rules for the optical multiplet transitions, we outline a unified approach to magnetic and optical properties of strongly correlated transition metal oxides…
Density response of the t-J model and renormalization of breathing and half-breathing phonon modes: A slave-fermion calculation
P. Horsch, G. Khaliullin, V. Oudovenko
The density fluctuation spectrum is calculated for the t-J model in the low-doping regime using a slave-fermion method for the constrained fermions. The obtained res…
Density response of cuprates and renormalization of breathing phonons
P. Horsch, G. Khaliullin
We analyse the dynamical density fluctuation spectra for cuprates starting from the model in a slave-boson 1/N representation. The results obtained are consistent with diagon…
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…