Abstract A theoretical model is proposed for structures of collective micromagnetic spin in magnetoresistive FeNiCo nanostrips with perpendicular anisotropy. Atypical dependences of the magnetoresistance on the magnitude of the external field obtained experimentally indicate there is a complex domain structure in each sample. The curves of the AMR effect, calculated in accordance with this model, are

Abstract Ferrite-based composites can largely attenuate the energy of incident electromagnetic radiation by reducing the reflection at the interface between the composites and free space. The magnetic and dielectric properties of composites consisting of ferrite fillers and epoxy resin are investigated along with the parameters of microwave absorption. The dependences of the permeability and permittivity

Abstract A study was made of the kinetics of the luminescence of europium(III) β-diketonate complex [Eu(fod)3] in the presence of in situ generated O2(1Δg) at thermal decomposition of the 1,4-dimethylnaphthalene endoperoxide. A scheme was proposed in which the luminescence of Eu(III) (λmax = 615 nm) is determined by the stepwise oxidation of the ligands of the complex, resulting in electronically excited

Abstract The results are presented from experimental studies of the magnetostrictive and magnetoresistive properties of a multilayer Ta/FeNiCo/CoFe/Cu/CoFe/FeNiCo/FeMn/Ta nanostructure formed on an oxidized silicon substrate. The effect mechanical deformation has on the electrophysical parameters of the nanostructure is investigated. Conclusions and prospects for using magnetoresistive nanostructures

Abstract A theory is constructed for the ordering of magnetic domains in magnetic film materials in the presence of point dipole magnetic inhomogeneities. The distribution of magnetization is modeled for a rectangular strip with an axis of easy magnetization perpendicular to its plane in the presence of point dipole magnetic inhomogeneities. 3D modeling of the magnetic structure of the plate reveals

Abstract Solutions are considered for the system of nonlinear equations of a one-dimensional isentropic gas flow with low densities. A typical singularity of these solutions corresponding to a cusp catastrophe is described. A model solution with such a singularity was obtained for the special case of shallow-water equations. Within the terms of this model solution, an asymptotic solution is obtained

Abstract The role photonic domains play in natural generators of electromagnetic energy in definitions of the electrodynamics of giant energies is considered. Special attention is given to stars; specifically, to yellow dwarfs of class G2, to which our Sun belongs. A new model is proposed in which the nuclei of class G2 yellow dwarfs are thermonuclear boilers with bubble boiling, in which not only

Abstract Results are presented from studying the size-dependent spectral luminescent properties of colloidal Ag2S quantum dots (QDs) passivated with L-cysteine (L-Cys) molecules. The stability of the luminescent properties of Ag2S/L-Cys QDs with respect to the action of radiation with different powers and wavelengths is analyzed.

Abstract The temperature dependence of the resistivity of thin poly(diphenylene phthalide) films in a highly conductive state is studied. A metallic type of conductivity in the range of low temperatures is observed, suggesting the possibility of charge transfer in the films along a narrow conduction band in the band gap.

Abstract A study is made of the effect a surface ligand’s molecules have on the photoconductivity and photovoltaic effect in thin solid layers of structures based on PbS quantum dots. Thin solid layers are prepared of both quantum dots and bulk heterojunctions of a blend of quantum dots and fullerene derivative ([6,6]-phenyl-C(61)butyric acid ester (PCBM)). An exponential dependence of photoconductivity

Abstract The optical absorption spectra of a number of compounds containing carbonyl groups in solutions of n-hexane and methanol are considered. It is shown that the specific effect of the polar solvent is due to the formation of hydrogen bonds between the solvent molecules and within the molecule under study. As a result, we observe a change in the energy gap between the corresponding occupied and

Abstract The use of polymer dielectrics as a matrix for fullerene derivatives allows photoconductive properties of fullerene-containing materials to be induced. Results are presented from studying the properties of poly(diphenylene phthalide) (PDP) doped with fullerene derivatives.

Abstract A brief overview is presented for means of severe plastic deformation during the formation of gradient structure from the viewpoint of physical mesomechanics. An analysis of the results on the impact of the means of drawing with shear on steel; severe plastic deformation by high pressure torsion on steel, titanium, and copper; and alternating bending by applying a ECAP-Conform stand on copper

Abstract The role of hydrated electrons in sonochemiluminescence (SCL) arising from the single- and multibubble sonolysis of aqueous solutions of \({\text{Ru(bpy)}}_{{\text{3}}}^{{{\text{2 + }}}}\) and \({\text{Ru(bpy)}}_{{\text{3}}}^{{{\text{3 + }}}}\) is revealed. Possible chemiluminescent reactions between ruthenium ions and the products of water sonolysis are considered. A conclusion is drawn concerning

Abstract The directions in which the beams of surface spin waves transfer energy are investigated experimentally and theoretically for the range of frequencies in which superdirectional wave propagation occurs (at one frequency). It is found that these directions are in good agreement with the direction of the vector of group wave velocity, and this direction for a superdirectional beam can be measured

Abstract Spectra obtained using a four-electrode measurement scheme in a medium with dispersion are modeled mathematically using the example of a three-dimensional cell culture. The problem is solved with the finite element approach by assuming there are no inductive phenomena in the studied system in a given range of frequencies. The electrical characteristics of the electrodes are considered.

Abstract Characteristics of surface spin waves in a tangentially magnetized symmetric structure of metal–dielectric–ferrite–dielectric–metal are studied theoretically. It is established that for certain structural parameters, these single-mode waves are inverse throughout the ranges of frequencies and wave vector orientations in which they exist.

Abstract A study is made of the magnetoelectric interaction between an electric field source and a magnetic domain boundary (DB) in a film of a magnetic dielectric with easy magnetization axis anisotropy. A coordinate dependence for the potential DB energy on the distance between the electric field source and the domain boundary is plotted. A potential minimum for DB is shown to occur at the source

Abstract The time of the redistribution of the kinetic energy of atoms by intramolecular vibrational modes (the lower boundary of V−V energy exchange) of a phenol molecule is calculated via molecular dynamics using the quantum-classical approach and depending on the energy of excitation of the valence vibrations of the hydroxyl group.

Abstract A mathematical model is proposed for analyzing nonstationary electromagnetic processes in a coil capacitor (a katkon, an electromagnetic element with reactive power self-compensation). Transients in the katkon are modeled physically. Qualitative features of unsteady electromagnetic processes at the katkon’s input and output are generalized and systematized for different types of loads under

Abstract FOOT is a nuclear physics experiment which aims to fill the gap in experimental data on the differential cross sections for the production of secondary fragments induced by proton and ion beam interactions with energies up to 700 MeV/A. These data are necessary for correct medical applications and calculations of radiation doses in different conditions, for the design and optimization of spacecrafts

Abstract A time-of-flight spectrometer was used to compare the masses of nuclear fission fragments before and after their passage through the carbon foil, event by event. For all the registered fragments, there was a significant loss of mass of the fragment, and the registered fragment-residue turned out to be a magic nucleus. For spontaneous fission of 252Cf nuclei, the effect was observed for both

Abstract A new set of HIJING model parameters is found. Changes in the model are proposed that allow NA49 and NA61/SHINE experimental data on pp interactions to be described at projectile proton momenta \({{p}_{{{\text{lab}}}}}\) = 20, 31, 40, 80 and 158 GeV c−1 in the rest frame of target protons. The modified model is used to analyze data on nucleus–nucleus interaction. It is shown that the model

Abstract The problem of determining the energy of virtual pp-state in the d + 1H → (p+p) +n reaction is considered to study the effect of 3N-forces have on the value of this parameter in the reaction with three particles in the final state. In this work we present the results from kinematic modeling of this reaction. The possible range of measuring the energy of virtual pp-state is determined in particular

Abstract The one-neutron transfer 2H(9Li, p)10Li reaction has been investigated at 29 A MeV incident energy at the ACCULINNA-2 facility (Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research). The setup has been used in order to detect the recoil protons at backward angles in coincidences with the outgoing 9Li and neutrons from the 10Li decay at forward angles. This setup allows

Abstract The hyperspherical harmonics approach is especially suited to studies of true three-body decays. Reducing the hyperspherical equations set to a single-channel approximation provides the basis for using the standard quasi-classical expression for calculating resonance widths. It is shown that the quasi-classical approach is itself quite precise when applied to the three-body single-channel

Abstract New approaches are proposed for improving combined industrial technologies for the sterilization of bone implants, based on exposure to X-rays, gamma rays, and fast electron beams. The proposals open up prospects for further effective development of radiation technologies while reducing the absorbed dose and maintaining the sterility of bioimplants.

Abstract The nuclear 4He + 3H and 4He + 3He systems, which are of significant interest to nuclear astrophysics applications, are studied within a microscopic approach. Elastic scattering and radiative capture in these systems are considered over a broad range of energies. Cross sections (astrophysical S-factors) for the radiative capture and nuclear phase shifts for the elastic scattering are calculated

Abstract The spatial distribution of the neutron flux from the output channel of a photoneutron source is measured. The measurements are made using a moving helium counter and a position-sensitive detector based on a 10B layer. The parameters of neutron distribution are presented. The work is performed as part of preparing nuclear physics experiments and applied research using small angle scattering

Abstract— A hydrodynamic approach with a nonequilibrium equation of state is used to describe collisions between heavy ions with medium energies. The double differential cross sections for the production of subthreshold \({{\pi }^{0}}\) mesons and \({{\pi }^{ + }}\)mesons during collisions between various nuclei are calculated to develop this approach with the inclusion of nuclear viscosity effects

Abstract The exclusive reaction 12C(p,pNN)10A of the quasi-elastic knockout of a nucleon from short-range correlated nucleon pair \(\langle NN\rangle \) in the 12С nucleus by a proton with an energy of several gigaelectronvolts is considered in the plane-wave approximation. The translational invariant shell model with intermediate coupling is used to calculate two-nucleon spectroscopic factors for

Abstract The multinucleon transfer process in the reaction 238U + 251Cf is investigated by the dinuclear system model with GEMINI++ code. The time evolution of the fragment probability is studied. For the fragments with larger proton number, the time needed to reach the maximum probability is larger. The isotopic distributions become wider at larger evolution time, and more neutron-rich and proton-rich

Abstract The properties of triatomic LiHe2 clusters are studied. The binding energies and lengths of atom scattering on a weakly bound dimer are calculated using Faddeev differential equations.

Abstract Experiments on measuring the energy spectra and time distributions of delayed neutrons are described. The neutrons are produced in 238U photofission under the action of bremsstrahlung photons in the LUE-8-5 pulsed electron accelerator at the Russian Academy of Sciences’ Institute for Nuclear Research. The kinetic energy of incident electrons is ≈10 MeV. Measurements are made in the intervals

Abstract Problems of describing experimental data on the angular distributions of fragments of nuclear fission induced by intermediate-energy neutrons are discussed. A way of calculating angular distributions based on using the TALYS program is proposed. The capabilities of the technique for obtaining new information on the fission process and reactions at intermediate energies are shown by the example

Abstract Experimental works performed on the Dubna gas-filled magnetic recoil separator (GFS) to study the reactions of formation of 294Ts and 294Og nuclides and the properties of their radioactive decay are described. Future possibilities of synthesizing new elements with Z = 119 and Z = 120 and performing experiments to study the properties of heavier isotopes of known superheavy nuclei Lv (Z = 116)

Abstract Results on the effect accelerated electrons and X-rays have on the microbiological and organoleptic characteristics of chilled trout are presented. The doses absorbed by trout are determined for both types of treatments. These doses suppress the microflora of trout for 15 days after treatment and do not alter its organoleptic properties.

Abstract A new way of measuring the excitation function for reactions with neutron emission is presented. A trial experiment is performed using a DC-60 heavy ion accelerator at the Interdisciplinary Scientific Research Complex in Nur-Sultan, Kazakhstan. The excitation function of the 13C(α, n) reaction is measured at 180° c.m. in the Ec.m. = 1.7–2.6 MeV range of energies. The results are compared to

Abstract The inelastic scattering of 14.1 MeV neutrons off magnesium nuclei is studied at the TANGRA facility using tagged neutrons and an ING-27 standard neutron generator. The energies and partial cross sections of visible γ transitions induced in different reactions between neutrons and magnesium nuclei are determined. The measured angular distribution of γ quanta for 24Mg is analyzed and compared

Abstract In the framework of the Rarita–Schwinger formalism, a description is given of the wave functions, as well as the matrix elements of the electromagnetic and weak neutral currents of the nuclei of half-integer spin. Multipole decompositions of the matrix elements of these currents are constructed in the Breit reference frame. In the approximation of the effective electroweak current of the nucleus