M. Eremin

Dynamical charge susceptibility in layered cuprates: Beyond the conventional random-phase-approximation scheme

The analytical expression for dynamical charge susceptibility in layered cuprates has been derived in the frame of singlet-correlated band model beyond random-phase-approximation (RPA) scheme. Our calculations performed near optimal doping regime show that there is a peak in real part of the charge susceptibility

Theory of the electronic structure and spin susceptibility of La2−xSrxCuO4

\chi({\bf q},\omega)

Theory of the pseudogap in the elementary excitation spectrum of the normal phase of bilayer cuprates

at {\bf Q} = (

The energy dispersion of the singlet correlated impurity band in layered cuprates

\pi

Some novel features of the bands in HTSC

,

Charge-excitation picture of Cu NMR Knight shift and relaxation in YBa2Cu4O8 deduced from a 3-band Hubbard model

\pi

Low energy excitation spectrum and Cu(2) spin-lattice relaxation from the singlet correlated band in YBa2Cu4O8

) at strong enough inter-site Coulomb repulsion. Together with the strong maximum in the Im

Influence of incommensurability on SDW and CDW amplitudes in underdoped cuprates

\chi({\bf Q},\omega)

The spin susceptibility of singlet correlated oxygen band in La2-xSrxCuO4

at 15 meV it confirms the formation of low-energetic plasmons or charge fluctuations. This provides a jsutification that these excitations are important and together with a spin flcutuations can contribute to the Cooper pairing in layered cuprates. Analysing the charge susceptibilitiy with respect to an instability we obtain a new plasmon branch,

Charge Density Waves with Complex Order Parameter in Bilayered Cuprates

\omega_{\bf q}