Основной целью «Узбекского физического журнала» является доведение до широкого научного сообщества новых результатов теоретических и экспериментальных исследований в различных областях современной физики, полученных учеными Узбекистана и зарубежных стран.
| Nashriyot | Ўзбекистон Республикаси Фанлар академияси |
|---|---|
| Shahar | Toshkent |
| ISSN | 1025-8817 |
| e-ISSN | 2181-077X |
| Tashkil etilgan | 1957 |
| Nashr davriyligi | annual international symposium on ph |
| Maqolalar soni | 430 |
| OAK holati | Ro‘yxatda |
The spin-dependent size quantization of the energy spectrum of current carriers through a two-barrier semiconductor structure is theoretically researched. In this case, the spin-orbital splitting is taken into account…
In the paper, the distribution of the electromagnetic field near the sample is discussed. The results are compared with the results of an earlier developed theoretical model for the field near the dielectric microsphere…
In interactions of gold and sulfur nuclei at 10.6 and 200 GeV/nucleon, respectively, the azimuthal emission angles of particles of different types, both produced and fragments of primary nuclei were measured. Intragroup…
The article presents the results of a study on the production of nanofibre anisotropic nanoporous materials based on silk fibroin and cotton cellulose by electrospinning using a rotating screen-receiver of nanofibers in…
In this work, several liquid electrolytes (LE) have been prepared. The electrolytes contain tetrapropylammonium iodide (TPAI) salt with different salt content, propylene carbonate (PC), ethylene carbonate (EC)…
The excited collective states of heavy even-even nuclei of the quadrupole type are studied in the framework of an arbitrary nonaxiality approximation of the nonadiabatic collective model. The energy spectrum of the…
The bank of observational data on dwarf galaxies has been assembled. Based on the observational data, a special composite catalog of dwarf galaxies up to a distance of 121 Mpc was composed. This catalog contains…
The smelting of industrial silicon is the most energy-intensive and environmentally hazardous process in the production chain of solar cells and electronic products. To solve the problem, new physically justified…
In the paper, the results of quantum-chemical simulation of five possible conformers of a propanol molecule, as well as of their hydrogen-bonded dimers are presented. Optimal geometry and energy parameters of the…
In this work, we investigated the phase change of the radiation wave of a high-power femtosecond laser propagating in the atmosphere due to absorption of radiation by the medium. Numerical experiments conducted for…
The electronic structure of CdМеTe nanostructures was studied by techniques of secondary and photoelectron spectroscopy. Particularly, for the first time it has been shown that in the conductivity band of the CdZnTe…
The results of a set of works on the technology of secondary cast polycrystalline silicon and the creation on this basis of solar cells and other semiconductor devices are presented. The prospects of mastering the…
Concrete strength increasing technology for the solar panel base was developed using modified by 40 nm size SiO2 nanoparticles nature water, exposed complex activation process. Highest values of compressive strength…
Known and original methods of utilization of dust wastes in the form of microsilica formed in the processes of electric arc smelting of technical silicon or ferrosilicium by their use in concrete, building mixtures…
The dependence of photoelastic properties of PbMoO4 crystals, doped with Na and Nd impurities, on the direction of polarization of diffracted light on the acoustic waves have been determined by the Dixon method in the…
We studied the potential of Ce:Nd:YAG crystal in solar pumped lasers. In the study, recently proposed multi-pass pumping configuration and the Fresnel lens, 0.8 m2, have been considered using statistical Monte-Carlo…
The structural features and dimensional characteristics of aggregates of fullerene C60 synthesized in binary mixtures of organic solvents (xylene-tetrahydrofuran), which prepared by a non-equilibrium way (mixing of the…
Investigation of grazing scattering of 3 keV Ar+ and Xe+ ions from the defect surface InP(001) are reported. Computer simulations based on the binary collision approximation permit one to carry out a quantitative…
Adsorption and surface ionization of imipramine and amitriptyline on the surface of oxidized tungsten were studied by methods of voltage modulation using a high-vacuum mass spectrometer installed with a "black camera"…
The results of thermal desorption surface ionization spectroscopy and GC/MS studies of synthetic cannabinoids, indole and indazole derivatives, confiscated in the form of powders and smoking mixtures on various plant…
The processes of low-temperature annealing of deep levels in silicon doped with cobalt atoms are investigated by means of deep level transient spectroscopy. It is shown that in n-Si<Co> during heat treatment at…
The influence of ytterbium atoms on the electrophysical properties of silicon MIS-structures is investigated by means of CC-DLTS and high-frequency volt-farad characteristics. It is shown that the presence of ytterbium…
The yield of M1+ atoms and Mn+ type nanoparticles as a function of current density during the sputtering of the surface of metals by accelerated ions was investigated.
The main aim of this work is to carry out measurements of radon and its daughter product’s activity in newly-built two- and three-storeyed houses in winter and summer seasons, an assessment of annual effective doses…
The paper presents methods of cleaning the surface of substrates before coating with vacuum-plasma methods. The mechanical and chemical cleaning methods are considered: heat treatment and glow discharge treatment. The…
The possibility and prospects of using of granular silicon as a material for the manufacture of thermal energy converters are discussed. It is shown that granular silicon particles mechanically brought into contact with…
In this work the energy distributions of Ar+ ions scattering by the surface InP(001) in low indexing directions at the grazing incidence of bombarding ions are presents. In energy distributions the peaks which…
In the paper, the effect of disordering of the surface layers on the electronic and optical properties of single-crystal silicon has been studied. An analysis of the photoelectron spectra shows that with complete…
SinOm+ cluster ions sputtered from Si surface by Xe+ under O2 flooding have been investigated using double focusing ion microanalyzer with reverse geometry. Proposed structural schemes of the cluster cations have been…
The nonvalent interaction of fullerenes Cn (n = 20, 24, 26, 28, 30, 32, 36, 50, 60) with defect-free graphene has been studied using computer simulation methods. The adsorption energies and equilibrium distances of…
Изучены возможные механизмы локализации носителей в неоднородных дырочно-легированных купратах и металл-диэлектрик переходы (МДП) в них. Показано, что диэлектрическое состояние легированных купратов отличается от…
In the article, new version of photoreceivers of autonomous type is discussed. The electro-optical and magneto-optical properties of photoreceiver of the generator type working with light power are described. The…
The influence of the impurity of erbium, lanthanum and oxygen on the processes of formation of radiation defects in silicon was studied by method of deep level transient spectroscopy. It is established that the presence…
In the present paper the numerical value of the critical temperature of fullerene C28 has been determined on the basis of electron-phonon interaction potential.
Results of researches on radiation monitoring of oil and gas production enterprises of limited liability company "Gazlineftgasdobicha" (Gazli town, Uzbekistan) and JV «Uz-Kor Gas Chemical» LLC, «Ustyurt Gas and Chemical…
The work is devoted to study of the magnetic properties of compounds based on double vanadates of rare earth elements. It is shown that the presence of vanadium V+4 in compounds causes the paramagnetic properties. It is…
Using statistical Monte-Carlo photon-tracing method, we numerically studied focal spot structure of flat Fresnel lens. It has been shown that due to dispersion effect, focal spot structure changes considerably. In…
The influence of the Ar+ ion bombardment on composition, zone-energy parameters and optical characteristics of the CdS films has been studied. It is shown that under low dose of Ar+ ions (D ≤ 5×1015 сm−2) surface…
In the paper, the results of mathematical modeling of heterogeneous processes are presented indicating the applicability of the method of thermal-desorption surface-ionization spectrometry to determine the kinetic…
In the paper, the effect of implantation of Na+ ions with different fluences on the density of states of Si(111) valence electrons has been studied by the methods of spectroscopy of elastically scattered electrons…
The behaviour of conductivity σ and permittivity ε of metal-polymer composites comprising Ni particles dispersed in the phenilon are studied. It is found that the percolation-like behaviour of σ and ε, which is observed…
An infinite cluster topology in ceramic materials containing micro- and nanoparticles of nickel has been studied within the percolation theory. The density, volume fraction, tortuosity, volume fraction of skeleton and…
In the paper, we supplemented the data on the list of spiral galaxies [1] with the physical characteristics of the spiral galaxies halo. The halo of spiral galaxies was analyzed and the dependencies between their…
Concentration dependences of sodium dodecyl sulfate (SDS) in the concentration range of 0.005−0.03 mole (with the step of 0.001 mole) in water-ethanol solutions with a percentage ratio of 100:0, 92:8, 85:15, 70:30 were…
In connection with the lack of a satisfactory solution of the problem of globular cluster’s classification (GC) of stars we have modelled apparent density by a function with three free parameters. Basic statistical…
Defect formation on the surface of zinc oxide is investigated using the low-energy electrons by total current spectroscopy method. The formation of cation and anion vacancies on the surface is shown. The energy…
Прозрачные керамические YAG-лазерные материалы с высоким содержанием неодима исследуются для применения в преобразовании солнечной энергии в энергию лазерного излучения с помощью метода имитации трассировки лучей…
Numerical calculation was used to analyze the generation of the third harmonic in argon gas. The duration of the main pulse was chosen to be 5 fs. The role of gas ionization and high-order dispersion effects (up to…
In this paper, experimental results obtained by the method of spectroscopy of the characteristic energy loss of electrons are presented to study the composition and electronic structure of Cu(100) with silicon surface…
The technique for producing thin films of higher manganese silicide by magnetron sputtering is considered. The films were obtained on dielectric substrates: sitall СT-35-2 and mica. New results on the structural and…