The calculations of intensity ratio of both the main and additional lines, the energy differences between which are fulfilled for quantum well (QW) with asymmetrical potential profile, are presented here. It is grounded ...

Electron and hole spectra in n β-HgS cylindrical quantum wire superlattice in β-CdS matrix are calculated within the method of augmented plane waves. The energy term determined by the movement of quasiparticles in ...

It is proposed to determine the equilibrium state of the crystal lattice by minimizing the total energy in order to elucidate the role of electrostatic interactions as well as to determine the nonstoichiometry in ...

It is shown that the strong anisotropy of the one-particle electron spectrum, due to the presence of extended saddle-point features (ESPF) close to the Fermi level in the hole-type cuprates YBCO and BSCCO, leads to the ...

The real and imaginary part of the optical conductivity and the derived optical scattering rate of superconductors with mixed s + d or s + id symmetry order parameter is calculated for different mixing and for moderate impurity ...

We have made dilatometric studies of phase transitions in Sn₂P₂S₆ ferroelectric under high hydrostatic pressures. We investigated the pressure dependence of the coefficients in an expansion of the thermodynamic potential ...

Two-site cluster approximation to Glauber's master equation is developed for lattice spin systems with substitutional chaos. Dynamic pair correlation functions of disordered Ising and Mitsui models are calculated. The ...

In the present paper metal-to-insulator transition with the increase of temperature is studied in a narrow-band model with non-equivalent Hubbard subbands at half-filling. It is shown that the results obtained in the ...