91 citations · 108 across the 4 of their papers we have counts for
5 papers
A new hybrid LDA and Generalized Tight-Binding method for the electronic structure calculations of strongly correlated electron systems
V. A. Gavrichkov, M. M. Korshunov, S. G. Ovchinnikov +3
A novel hybrid scheme is proposed. The {\it ab initio} LDA calculation is used to construct the Wannier functions and obtain single electron and Coulomb parameters of the multiband…
Properties of normal and superconducting phases in the low-energy models of high- cuprates
M. M. Korshunov, S. G. Ovchinnikov, A. V. Sherman
In the framework of the effective low-energy model for High- cuprates with account for three-centers interaction terms and spin fluctuations the properties of normal and super…
Generalization of Luttinger's Theorem for Strongly Correlated Electron Systems
M. M. Korshunov, S. G. Ovchinnikov
Analyzing general structure of the Green function of a strongly correlated electron system we have shown that for the regime of strong correlations Luttinger's theorem should be ge…
Prediction of the in-Gap States Above the Top of the Valence Band in the Undoped Insulating Cuprates due to Spin-Polaron Effect
S. G. Ovchinnikov, A. A. Borisov, V. A. Gavrichkov +1
In the framework of the generalized tight binding method we have calculated the quasiparticle band structure and the spectral functions of the undoped cuprates like , $…
Electronic Properties of the Effective Singlet-Triplet Model
Maxim M. Korshunov, Sergei G. Ovchinnikov
In present work the effective singlet-triplet model for CuO2-layer on the grounds of multiband p-d model of strongly correlated electrons is obtained. The resulting Hamiltonian has…