Weak Antilocalization Effect in an AlAs/AlGaAs Quantum Well

JETP Letters - Weak antilocalization in a narrow AlAs quantum well containing a two-dimensional electron system with a large effective mass at low temperatures has been studied. Such quantum...     

Multiparticle Effects in the Spectrum of Collective Excitations of Strongly Interacting Two-Dimensional Electron Systems (Brief Review)

JETP Letters - Extraordinary multiparticle effects in quantizing magnetic fields that are manifested in strongly interacting two-dimensional electron systems in MgZnO/ZnO heterostructures have been...     

The structure of utility functions ensuring the existence of an exact potential in a strategic game

Strategic games in which the profit of each participant is the sum of local profits gained by means certain “objects” and shared by all players using these objects are considered. If each object satisfies a regularity condition, then the game has an exact potential. Both universal classes of potential games considered previously in the literature, overflow games and games with structured utility functions, are contained in the class under consideration and satisfy the regularity condition.     

International Conference “Mechanisms and Nonlinear Problems of Nucleation and Growth of Crystals and Thin Films” Dedicated to the Memory of Professor V.V. Slezov,an Outstanding Theoretical Physicist

Physics of the Solid State - This issue of Physics of the Solid State publishes the proceedings of the International Conference “Mechanisms and Nonlinear Problems of Nucleation and Growth of...     

Study of Elastic Properties of SiC Films Synthesized on Si Substrates by the Method of Atomic Substitution

Physics of the Solid State - The elastic properties of nanoscale silicon carbide film grown on a silicon substrate by the method of atomic substitution were studied. The Young modulus of nanoscale...     

On the Spin Depolarization of a Hall Ferromagnet in the Vicinity of ν = 1 in Two-Dimensional Electron Systems Based on ZnO

JETP Letters - The behavior of the degree of spin polarization and the specific exchange energy near the Hall ferromagnetic state with filling factor ν = 1 in strongly interacting...     

Growth and optical properties of filamentary GaN nanocrystals grown on a hybrid SiC/Si(111) substrate by molecular beam epitaxy

The potential to grow filamentary GaN nanocrystals by molecular beam epitaxy on a silicon substrate with a nanosized buffer layer of silicon carbide has been demonstrated. Morphological and optical properties of the obtained system have been studied. It has been shown that the intensity of the photoluminescence spectrum peak of such structures is higher than that of the best filamentary GaN nanocrystals without the buffer silicon carbide layer by a factor of more than two.     

A high spectral resolution spectrograph with fiber input for the Big Azimuthal Telescope of SAO RAS. Improvement of the spectral module

The paper presents a critical analysis and modernization of separate elements of the optical layout of a high-resolution spectrograph with fiber input for the Big Azimuthal Telescope of the Special Astrophysical Observatory. The modernization is directed mainly at enhancing the light efficiency and making it possible to produce the spectrograph using domestic manufacturers. Renovated versions of the cross-dispersion grism, the projection camera, and the overall characteristics of the system are presented. The resulting efficiency of the whole instrument is given.

     

Structure of the Mo-Containing Dispersed Catalyst During Heavy Oil Upgrading in the Presence of Steam And Hydrogen

XRD, TEM, EXAFS/XANES methods are first used to study the structure and morphology of Mocontaining phases of carbon residues of heavy oil refining during catalytic steam cracking, catalytic cracking without water, and hydrocracking. According to the results obtained from physical and chemical studies of Mo-based catalytic phases, the reaction medium affects structural features of Mo-containing phases, e.g. the amount of oxide and sulphide forms, the particle size, and particle morphology.