Физика список научных статей
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Effects of optical intra-gaptransitions on superexchange interaction in La2CuO4 with nonequilibrium photoexcited centers
We investigated the effects of excited many-electron states in the optical control of the magnetic state in undoped Mott-Hubbard insulator. To derive the spin Hamiltonian in material under optical pumping we have used many-electron approach based on the X-operator representation. Extending the...
2018 / Polukeev Semen I., Gavrichkov Vladimir A., Ovchinnikov Sergey G.ScopusВАКRSCIESCI -
Analysis of an exact solution of problem of the evaporative convection (review). Part I. plane case
Development of theory describing the convection under conditions of "liquid gas" phase transition, is caused by the active experimental study of the convective phenomena accompanied by evaporation/condensation at interphase. Results of the analytical and numerical investigation of new...
2018 / Bekezhanova Victoria B., Goncharova Olga N., Shefer Ilia A.ScopusВАКRSCIESCI -
Metal layer thickness influence on the dispersion characteristics of acoustic waves in the layered structure "Me/ZnO/Me/diamond"
Theresearchpaperpresents an analysisof the influenceof massloadingrepresentedby two metal layers (the upper and lower electrodes) on variations in the phase velocity of the elastic wave dispersion modes in the piezoelectric layered structure "Me/ZnO/Me/diamond" depending on the frequency and the...
2018 / Burkov Sergey I., Zolotova Olga P., Turchin Pavel P., Turchin Vladimir I., Sorokin Boris P.ScopusВАКRSCIESCI -
Analysis of superconductor magnetization hysteresis
The critical state model and the extended critical state model are described to analyse a magnetization hysteresisandto findsuperconductorparameters. We discusshowgeometric sizesand form influenceon magnetization hysteresis, critical current and trapped flux.
2018 / Gokhfeld Denis M.ScopusВАКRSCIESCI -
Mathematical modeling of plastic deformation in fcc metals
A study was made of the number of dislocations change in the crystallographic shift zone for fcc metals: lead, aluminum and copper, depending on the magnitude of the acting stress and other factors affecting the formation of the shear zone, using a mathematical model that takes into account the...
2018 / Kolupaeva Svetlana N., Petelin Alexander E., Ryumkin Valeriy I.ScopusВАКRSCIESCI -
Influence of an initial states on the critical relaxation of Ising-like spin systems
The non-equilibrium critical behaviour of the three-dimensional pure and site-diluted spin systems described by Ising model is studied for different spin concentrations with evolution from various initial magnetic states. The universal scaling functions are determined for the magnetization.
2018 / Krizhanovskiy Vyacheslav V., Prudnikov Pavel V., Prudnikov Vladimir V.ScopusВАКRSCIESCI -
Analysis of an exact solution of problem of the evaporative convection (review). Part II. Three-dimensional flows
In thepaper thereviewof exact solutionsof the three-dimensional convectionproblemsispresented. The solutions allow one to model the two-layer convective fluid flows with evaporation at the thermocapillary interface.
2018 / Bekezhanova Victoria B., Goncharova Olga N., Shefer Ilia A.ScopusВАКRSCIESCI -
Systematization and analysis of integrals of motion for an incompressible fluid flow
An analysisof integralsof motionof an incompressible fluid flowboth known and new obtainedby author are presented in the paper. It was found that the known integrals of Lagrange Cauchy, Bernoulli and Euler -Bernoulli are special cases of a new more general integral. It was shown that the set of...
2018 / Koptev Alexander V.ScopusВАКRSCIESCI -
Antiplane strain of hardening elastoviscoplastic medium
Deforming of hardening elastoviscoplastic medium under the action of variable pressure gradient is considered in this paper. The displacement vector of material points has only vertical component. Mathematical model is based on the theory of large elastoplastic deformations. Differential transport...
2018 / Prokudin Aleksandr N., Firsov Sergey V.ScopusВАКRSCIESCI -
Band structure modification due to the spin-orbit coupling in the three-orbital model for iron pnictides
We study the effect of the spin-orbit coupling on the band structure and the Fermi surface of the three-orbital model within the two-iron Brillouin zone. Due to the presence of two irons in the crystallographicallycorrect unitcell, the spin-orbitcouplingcanbe dividedinto the intra-and intercellparts ...
2018 / Korshunov Maxim M., Togushova Yuliya N.ScopusВАКRSCIESCI -
Uniqueness of a solution of an ice plate oscillation problem in a channel
In this paper an initial-boundary value problem for two mathematical models of elastic and viscoelastic oscillations of a thin ice plate in an infinite channel under the action of external load is considered in terms of the linear theory of hydroelasticity. The viscosity of ice is treated in the...
2018 / Shishmarev Konstantin A., Papin Alexander A.ScopusВАКRSCIESCI -
Theoretical study of electrolyte diffusion throughpolarizable nanopores
The diffusion of binary aqueous electrolytes through nanopores with dielectric as well as conductive surface is investigated theoretically on the basis of Space-Charge model. The latter is extended to the case of polarizable nanopore wall. It is shown that the diffusion of ions with different...
2018 / Ryzhkov Ilya I., Vyatkin Anton S., Minakov Andrey V.ScopusВАКRSCIESCI -
Simple Mathematical model of conducting nanopore
A simple model of conducting nanopore is presented in the paper. The model does not require solution of the Poisson equation for the potential. This model is intended for use in simulation of transport phenomena of charged particles in conducting nanopores by the method of molecular dynamics. The...
2018 / Zolotov Oleg A., Zalizniak Viktor E.ScopusВАКRSCIESCI -
Возможные типы упорядочения катионных вакансий в структурах типа NiAs
A connection was found between the type of vacancy distribution and the magnetic properties of nonstoichiometric ferrimagnets such as pyrrhotite. Within the framework of the molecular-field approximation, a theoretical explanation was given to the dependence of the magnetization on the temperature...
2018 / Onufrienok Victor V., Chzhan Anatoly V, Sakash Irina Yu.ScopusВАКRSCIESCI -
Phase velocities of ultrasound waves and elastic modules in the IIb type synthetic diamond single crystal
First the results of experimental studies on the propagation of bulk acoustic waves (30-120 MHz) in the IIb type synthetic diamond single crystal have been presented in comparison with the appropriate data in the IIa type synthetic diamond. Data obtained were used to calculate all the elastic...
2018 / Kvashnin Gennady M., Sorokin Boris P., Kuznetsov Mikhail S., Terentiev Sergey A., Aksenenkov Viktor V., Burkov Sergey I.ScopusВАКRSCIESCI -
MODELING EPR POWDER SPECTRA OF TRICLINIC BINB1-XMNXO4-α
EPR of solid solutions BiNb1-xMnxO4-0 in triclinic modification have been studied. The EPR spectra revealed sextet structure of Mn(II) ions with 8.4 mT splitting and some features at g =3.80 and 1.47, and a broad diffuse band with g 2.2 having a sextet with 8 ÷ 9 mT splitting and g =2.0 against its...
2018 / Lutoev Vladimir P., Zhuk Nadezhda A., Makeev Boris A., Belyy Vladimir A., Beznosikov Dmitriy S.ScopusВАКRSCIESCI -
Studies of non-equilibrium relaxation Heisenberg model with long-range correlations defects
Monte Carlo simulations of the short-time dynamic behavior are reported for three-dimensional Heisenberg model with long-range correlated disorder at criticality, in the case corresponding to linear defects. Former was carried out both from high-temperature and low-temperature initial states. The...
2018 / Medvedeva Maria A., Prudnikov Pavel V.ScopusВАКRSCIESCI -
Self-assembly of three nanoparticles in structures with a predetermined geometry controlled by quasiresonant laser field
Inthepapera dynamicmodelof self-assemblyof nanoparticles under laser fieldisproposedforresearch thepossibility of a step-by-step assembly of a structure consisting of threeparticles with different form. Thepossibility of forming such structures with a predetermined geometry from a preformedpair...
2018 / Kornienko Viktoria S., Tsipotan Aleksey S., Slabko Vitaliy V.ScopusВАКRSCIESCI -
The calculation of magnetoresistance coefficient for multilayer magnetic structures
We performed a simulations of magnetic properties for the multilayer structures Fe/Cr/Fe and Co/Cu/Co using the Monte Carlo methods and the anisotropic Heisenberg model. The calculation of magnetoresistance coefficient is implemented in case of CPP geometry for the different thicknesses of the...
2018 / Romanovskiy Dmitriy E., Prudnikov Vladimir V., Prudnikov Pavel V.ScopusВАКRSCIESCI -
Study of the non-isothermal coupled problem with mixed boundary conditions in a thin domain with friction law
Thispaperdeals with the asymptoticbehaviorofacoupled system involvingof an incompressible Bingham fluid and the equation of the heat energy, in a three-dimensional bounded domain with Tresca free boundary friction conditions. First we prove the existence and uniqueness results for the weak solution. ...
2018 / Saadallah Abdelkader, Benseridi Hamid, Dilmi MouradScopusВАКRSCIESCI