The recent development of x-ray scattering techniques revealed the charge-excitation
spectrum in high-T c cuprate superconductors. While the presence of a dispersive signal in …

We derive an effective single-band Hubbard-type Hamiltonian for CuO 2 planes in the
cuprate high-T c superconductors. The Hamiltonian includes both electron-electron …

The nature of magnetic interactions and electron transfer processes in La 2− x Sr x CuO 4
systems are studied, by means of an ab initio embedded cluster model approach, using a …

Motivated by the recent resonant inelastic x-ray scattering (RIXS) experiment for the electron-
doped cuprates Nd 2− x Ce x CuO 4 with x≈ 0.15, we compute the density-density …

Treating the hole-magnon interaction within the self-consistent Born approximation, we
demonstrate that the low-energy quasiparticles that occur in the tJ model due to quantum …

We study the frequency-dependent structure of electronic self-energy in the pseudogap and
superconducting states of the two-dimensional Hubbard model. We present the self-energy …

The magnetic susceptibility, Hall effect, thermopower, specific heat, and plasma frequency
are calculated as a function of doping and temperature for La 2− x Sr x CuO 4 and related …

A microscopically based Hamiltonian of the generalized tt′-J model is presented. Two
types of the additional t′ terms are discussed. The numerical range of the amplitudes …

We perform a comprehensive analysis of the dynamical magnetic susceptibility χ (q, ω) in
the slave-boson mean-field scheme of the bilayer tJ model. We use model parameters …

The motion of a single hole in the one-band t-t'-J model that is constrained to move over only
one plaquette is shown to lead to a ground state with a three-dimensional spin texture …