Title: Band electron spectrum and thermodynamic properties of the pseudospin-electron model with tunneling splitting of levels
Author(s):

	O.Ya.Farenyuk (Institute for Condensed Matter Physics, 1 Svientsitskii Str., 79011 Lviv, Ukraine) ,
	A.M.Shvaika (Institute for Condensed Matter Physics, 1 Svientsitskii Str., 79011 Lviv, Ukraine)

The pseudospin-electron model with tunneling splitting of levels is considered. Generalization of dynamic mean-field method for systems with correlated hopping was applied to the investigation of the model. Electron spectra, electron concentrations, average values of pseudospins and grand canonical potential were calculated within the alloy-analogy approximation. Electron spectrum and dependencies of the electron concentrations on chemical potential were obtained. It was shown that in the alloy-analogy approximation, the model possesses the first order phase transition to ferromagnetic state with the change of chemical potential and the second order phase transition with the change of temperature.

Key words: pseudospin-electron model, correlated hopping, DMFT, ferromagnetism
PACS: 71.10.Fd