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cond-mat.str-el2005
Self-localization of composite spin-lattice polarons
Peter Prelovsek, Roland Zeyher, Peter Horsch
Self-localization of holes in the Holstein t-J model is studied in the adiabatic limit using exact diagonalization and the retraceable path approximation. It is shown that the crit…
cond-mat.str-el2005
Resistivity and optical conductivity of cuprates within the t-J model
M. M. Zemljic, P. Prelovsek
The optical conductivity and the d.c. resistivity within the extended t-J model on a square lattice, as relevant to high- cuprates, are reinvestigated using the…
cond-mat.str-el2005
Spin-fluctuation mechanism of superconductivity in cuprates
P. Prelovsek, A. Ramsak
The theory of superconductivity within the t-J model, as relevant for cuprates, is developed. It is based on the equations of motion for projected fermionic operators and the mode-…