5 papers
Magnetic Properties of Cuprate Perovskites
A. Sherman
The magnetic susceptibility of underdoped yttrium and lanthanum cuprates is interpreted based on the self-consistent solution of the t-J model of a Cu-O plane. The calculations rep…
The t-J model: From light to heavy doping
A. Sherman
The regions of hole concentrations $0 \leq x \alt 0.3$ and temperatures are studied in the t-J model of Cu-O planes of perovskite high- supercon…
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…
Dispersion of the strongly correlated electron system near the Fermi level
A. Sherman
The reason for the appearance of two distinct bands in the photoemission of the single CuO plane BiSrLaCuO near the Fermi level is discussed on the basi…
Pseudogaps and magnetic properties of the two-dimensional t-J model
A. Sherman, M. Schreiber
We apply the modified spin-wave theory with the constraint of zero staggered magnetization to investigate normal-state spectral and magnetic properties of the 2D t-J model in the p…