Влияние неравномерности толщины диэлектрической пленки вдоль поверхности катода на его нагрев в тлеющем разряде

Г. Г. Бондаренко; Фишер М. Р.; Кристя В. И.

doi:10.31857/S1028096025010117

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Влияние неравномерности толщины диэлектрической пленки вдоль поверхности катода на его нагрев в тлеющем разряде

Поверхность. Рентгеновские, синхротронные и нейтронные исследования. 2025. № 1. С. 78–85.

Bondarenko G., Фишер М. Р., Кристя В. И.

Research target: Materials Technologies Physics

Language: Russian

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Keywords: эмиссия emission cathode диэлектрическая пленка катод dielectric film

Non-linear in-band interference cancellation on base of conjugate gradients method

Degtyarev A., Bakhurin S., Yudin N., DSPA 2026 P. 1–6

This paper investigates one possible solution to the problem of self-interference cancellation (SIC) arising in the design of in-band full-duplex (IBFD) communication systems. Self-interference cancellation is performed in the digital domain using multilayer nonlinear models adapted via gradient-based optimization. The presence of local minima and saddle points during the adaptation of multilayer models limits the ...

Added: May 26, 2026

Ising models on the hydrogen peroxide and other lattices

Qian X., Deng Y., Shchur L. et al., Physica A: Statistical Mechanics and its Applications 2026 Vol. 696 P. 1–13

We perform a Monte Carlo analysis of the Ising model on many three-dimensional lattices. By means of finite-size scaling we obtain the critical points and determine the scaling dimensions. As expected, the critical exponents agree with the three-dimensional Ising universality class for all models. The irrelevant field, as revealed by the correction-to-scaling amplitudes, appears to ...

Added: May 24, 2026

Влияние материала затвора МДП-структур на процессы сильнополевой зарядовой деградации подзатворного диэлектрика

Андреев Д. В., Корнев С. А., Bondarenko G. et al., Перспективные материалы 2026 № 6 С. 5–11

Выполнено сравнительное исследование процессов сильнополевой зарядовой деградации подзатворного диэлектрика структур металл-диэлектрик-полупроводник (МДП) с алюминиевым и поликремниевым затвором. Зарядовые явления в МДП-структурах изучали методом сильнополевой инжекции электронов в диэлектрик в режиме возрастания плотности стрессового инжекционного тока с кратковременными переключениями в измерительный режим при постоянной низкой плотности инжекционного тока. Использование данного метода позволило получить новые данные о процессах зарядовой деградации подзатворного диэлектрика МДП-структур с ...

Added: May 21, 2026

Оптические методы детектирования единичных биомолекул: визуализация, сенсорика, секвенирование молекул ДНК

Melentiev P. N., Калмыков А. С., Гритченко А. С. et al., Успехи физических наук 2024 Т. 194 № 11 С. 1130–1145

Представлен краткий обзор достигнутого уровня оптических методов детектирования единичных молекул в биомедицинских приложениях. Показано, что регистрация флуоресценции единичных молекул красителей, ковалентно связанных с антителами (биомолекулами), совместно с использованием современных методов нанофотоники может быть применена для решения различных задач в биологии и медицине: визуализации биомолекул, токсинов, вирусных частиц, определения ультранизких концентраций аналитов напрямую во взятой пробе, ...

Added: May 21, 2026

VACUUM DISCHARGE DRIVEN BY STRIPE LINE STORAGE AS A SOURCE OF EUV RADIATION

Antsiferov P.S., Stepanov L.V., Matiukhin N. D., Review of Scientific Instruments 2025 Vol. 96 No. 12 Article 123506

The article presents the discharge plasma based source of extreme ultraviolet (EUV) radiation. The discharge circuit has been driven by means of stripe line storage with working voltage 10.5 kV. The main feature of the proposed source is that plasma electrons acquire the energy, necessary for the production of multiply charged ions with ionization potentials ...

Added: May 20, 2026

Регистрация спектров на 6.65 метровом ВУФ-УФ спектрометре с помощью многоканального детектора

Анциферов П. С., Степанов Л. В., Матюхин Н. Д., Оптика и спектроскопия 2026 Т. 134 № 2 С. 214–218

Сообщено о разработке системы регистрации спектров на ПЗС-линейке для уникального ВУФ спектрометра, построенного на основе сферической дифракционной решетки с радиусом 6.65 m. Была использована линейка HAMAMATSU S11156-2048-02, которая устанавливалась по касательной к окружности Роуланда с возможностью механического перемещения для сканирования спектра. Были получены спектрограммы в диапазоне длин волн 2130-2270 Angstrem. Описана методика сшивки регистрируемых спектральных ...

Added: May 20, 2026

ML-based Fast Simulation of FARICH Responses

Shipilov F., Barnyakov A., Ivanov A. et al., / Series Physics "arxiv.org". 2026.

A fast simulation of the detector response is a vital task in high-energy physics (HEP). Traditional Monte-Carlo methods form the backbone of modern particle physics simulation software but are computationally expensive. We present a machine-learning-based approach to fast simulation of the Focusing Aerogel Ring Imaging Cherenkov (FARICH) detector response. Given a particle track and momentum, ...

Added: May 19, 2026

On a Possible Method for Separating CO Lines from the Spectrum of the Cosmic Microwave Background

Malinovsky A. M., Пилипенко С. В., Mikhalchenko A. O. et al., Astronomy Reports 2026 Vol. 70 P. 1–6

Radiation from rotational transitions of CO molecules in distant galaxies creates a chaotic background with an intensity reaching 1000 Jy/sr at a wavelength of approximately 1 mm. This background will pose a serious problem, when measuring spectral distortions of the cosmic microwave background, in particular, the mu-distortion, which presumably has an intensity of less than ...

Added: May 19, 2026

Broadband photoluminescence of epitaxial bismuth nanowires and planar nanostructures

Kaveev A. K., Fedorov V. V., Pavlov A. V. et al., Journal of Materials Chemistry C 2026 Vol. 14 No. 7 P. 2697–2705

Bismuth nanostructures represent a promising material platform for semiconductor nanooptoelectronics and colorimetry owing to the multi-colored light reflection and quantum confinement. In this work, we study the photoluminescent properties of bismuth nanostructures grown using molecular beam epitaxy on the planar CaF2/Si(111) surface. We demonstrate the different surface morphologies of Bi, ranging from planar films obtained ...

Added: May 19, 2026

STM study of single phosphorus incorporation into silicon by heating PBr3 on Si(100)

Pavlova T., V.M. Shevlyuga (Шевлюга В. М., Applied Surface Science 2026 Vol. 736 P. 166813–166813

The objective of miniaturizing doped areas in silicon, with the ultimate goal of achieving atomic-precision doping, requires a fundamental understanding of the dopant incorporation process at the atomic level. We present a combined scanning tunneling microscopy (STM) and density functional theory (DFT) investigation of single phosphorus atom incorporation into the Si(100) surface. Phosphorus was supplied ...

Added: May 19, 2026

Single-photon diamond sources created by nature

Pasternak D., Romshin A., Khmelnitsky Р. et al., Carbon 2026 Vol. 256 Article 121655

A single-photon source (SPS) is a key component required for quantum communication devices. We report the discovery of bright diamond-based SPS created by nature. It is shown that narrow (≤2 nm) lines observed in the 500-800 nm range in photoluminescence (PL) spectra of the surface layer of untreated Yakut diamonds rich in nitrogen and hydrogen are linked to ...

Added: May 19, 2026

Optical features of nanoplatelets modified with chiral ligands

A.M. Smirnov, Kurtina D. A., Saitov S. R. et al., Optical Materials: X 2026 Vol. 30 Article 100441

Chiral semiconductor nanostructures and nanoparticles are promising materials for applications in biological sensing, enantioselective separation, photonics, and spin-polarized devices. Here we performed a detailed analysis of optical properties of chiral CdSe nanoplatelets with thickness of 2 and 3 monolayers (ML) with Nacetyl-L-cysteine ligands. We studied the absorption spectra peculiarities, analyzed time-resolved photoluminescence and investigated circular ...

Added: May 18, 2026

Temperature-driven charge transport in annealed CdSe/CdS nanoplatelets film

Saitov S. R., Saidzhonov B. M., Vasiliev R. B. et al., Journal of Applied Physics 2026 Vol. 139 No. 18 Article 185702

This work presents a comprehensive investigation into the temperature-dependent thermally stimulated conductivity and photoconductivity of vacuum-annealed thin films based on core–shell CdSe/CdS nanoplatelets passivated with oleic acid ligands. Controlled thermal annealing under vacuum conditions leads to a substantial increase in both dark and photoinduced conductivity, which is primarily attributed to partial desorption of the ligands. ...

Added: May 18, 2026

Направленность вывода излучения из кольцевых микролазеров с нарушенной вращательной симметрией

Масютин Д. А., Moiseev E., Komarov S. et al., Письма в Журнал технической физики 2026 Т. 52 № 7 С. 27–30

Исследованы инжекционные полупроводниковые микролазеры с кольцевым резонатором радиусом 15 мкм с несимметричным расположением внутреннего отверстия резонатора. Показано, что асимметрия обеспечивает формирование в диаграмме направленности двух лепестков излучения, разориентированных на 50° относительно оси смещения внутреннего отверстия. Измеренная добротность резонаторов сопоставима с добротностью дисковых резонаторов и находится на уровне ∼ 10^6. ...

Added: May 18, 2026

Plasmonic Au-Assisted g-C3N4/CeO2 Heterojunction for Enhanced Photocatalytic Breakdown of Organic Pollutants

Rathish S., Andrey S. Vasenko, Thazhathenair A. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 18 P. 5386–5394

We demonstrate and rationalize the effect of Au nanoparticles (NPs) on the hierarchical g-C3N4/CeO2 heterojunction. g-C3N4/CeO2 decorated with monodispersed plasmonic Au NPs was synthesized. Detailed analyses showed that CeO2 nanocubes and monodispersed Au NPs were evenly distributed over the 2D g-C3N4 surface, forming a robust interface enriched with abundant active sites. The structure enabled efficient separation of photogenerated charge ...

Added: May 16, 2026

The origin of enhanced photocatalytic performance in titanium dioxide via niobium doping: From experimental assessments to DFT insights

Paul R., Das A., Sharma N. et al., Colloids and Surfaces A: Physicochemical and Engineering Aspects 2026 Vol. 728 Article 138830

Niobium-doped TiO2 (Nb-TiO2), demonstrates dual functionality as an efficient photocatalyst for dye degradation and a promising photoelectrocatalyst for water oxidation. Nb incorporation via a facile hydrothermal method was confirmed by XRD (Rietveld refinement), XPS, TEM, FT-IR, Raman, and BET analyses, indicating successful lattice doping and structural modification. Photocatalytic dye degradation experiments were conducted using a model ...

Added: May 16, 2026

Perturbation theory for phase correlations of a light wave propagating in a turbulent medium

I. V. Kolokolov, V. V. Lebedev, Physical Review E - Statistical, Nonlinear, and Soft Matter Physics 2026 Vol. 113 No. 5 Article 054117

We theoretically investigate the correlation functions of the phase of a light wave propagating through a turbulent medium. We use an equation for the logarithm of a wave packet envelope, which includes a secondorder nonlinear term. Based on this equation, we develop a diagrammatic technique to calculate corrections to the correlation function obtained in the linear approximation. We ...

Added: May 15, 2026

Influence of the Nonuniform Thickness of a Dielectric Film along a Cathode Surface on Its Heating in a Glow Discharge

Bondarenko G., Fisher M. R., Kristya V. I., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2025 Vol. 19 No. 1 P. 66–72

A model of a cathode layer in a gas glow discharge is formulated taking into account the presence of a dielectric film with varying thickness on the cathode across different areas of its surface, and in some areas, the film may be absent. The model includes ion–electron emission from the cathode surface, thermalfield electron emission from the cathode ...

Added: June 11, 2025

Orthogonal decoupling of an ionic-electronic transport microarchitectured vertical array cathode for flexible sodium-ion batteries

Li L., Li Z., Meng J. et al., Chemical Communications 2025 Vol. 61 No. 45 P. 8252–8255

Sodium-ion batteries (SIBs) have emerged as a promising alternative to lithium-ion batteries due to the abundance and cost-effectiveness of sodium resources. However, their widespread application is hindered by challenges such as sluggish ion diffusion kinetics and structural instability of cathode materials during prolonged cycling. The design of advanced cathode architectures with enhanced ion transport and ...

Added: May 8, 2025

Моделирование влияния неравномерности толщины диэлектрической пленки вдоль поверхности катода на его эмиссионные свойства в тлеющем газовом разряде

Г. Г. Бондаренко, Фишер М. Р., Кристя В. И., Известия РАН. Серия физическая 2024 Т. 88 № 4 С. 549–554

Предложена модель катодного слоя тлеющего газового разряда при наличии на катоде диэлектрической оксидной пленки, толщина которой имеет различные значения на разных участках его поверхности. Изучено влияние неравномерности толщины пленки на эффективный коэффициент электронной эмиссии катода и на характеристики разряда. ...

Added: December 13, 2024

Моделирование влияния полевой электронной эмиссии из катода с тонкой диэлектрической пленкой на его распыление в газовом разряде в смеси аргона и паров ртути

Bondarenko G., Кристя В. И., Савичкин Д. О. et al., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2024 № 3 С. 81–87

Предложена модель слаботочного газового разряда в смеси аргона и паров ртути при наличии на поверхности катода тонкой диэлектрической пленки. Модель учитывает, что в такой смеси существенный вклад в ионизацию рабочего газа может давать ионизация атомов ртути при их столкновениях с метастабильными возбужденными атомами аргона. В разряде на поверхности пленки накапливаются положительные заряды, создающие в диэлектрике электрическое поле, достаточное для возникновения ...

Added: June 12, 2024

Simulating the Effect of Field Electron Emission from a Cathode with a Thin Dielectric Film on Its Sputtering in a Gas Discharge in an Argon and Mercury Vapor Mixture

G. G. Bondarenko, Kristya V. I., Savichkin D. O. et al., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2024 Vol. 18 No. 2 P. 327–332

We propose a model for a low-current gas discharge in a mixture of argon and mercury vapor in the presence of a thin dielectric film on the surface of a cathode. The model takes into account that in such a mixture, a significant contribution to ionization of the working gas can be made by the ionization of ...

Added: April 25, 2024

Modeling the Effect of the Non-Uniform Thickness of a Dielectric Film along a Cathode’s Surface on Its Emission Properties in a Glow Gas Discharge

G. G. Bondarenko, Fisher M. R., Kristya V. I., Bulletin of the Russian Academy of Sciences: Physics 2024 Vol. 88 No. 4 P. 464–468

A model is proposed for describing a cathode layer of a glow gas discharge in the presence on a cathode of a dielectric oxide film, the thickness of which has different values on different sections of its surface. The influence is studied of the non-uniformity of the film thickness on the effective coefficient of the ion-electron emission as ...

Added: April 15, 2024

The Effect of Forest Plantations on Carbon Dioxide Emission from Soils in the Volga and Don Regions

Zamolodchikov D., Kaganov V. V., Mostovaya A. S., Russian Journal of Ecology 2023 Vol. 54 No. 6 P. 584–593

The formation of an organic carbon pool in soil is determined by the balance of incoming and outgoing fluxes. The incoming fluxes are associated with the processes of dying off and further transformation of the organic matter of plants, while the outgoing fluxes are primarily formed by the processes of organic matter destruction, although in ...

Added: February 11, 2024