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Влияние содержания кислорода на локальное окружение атомов Fe в анион-дефицитном SrFeO3–δ
Физика твердого тела. 2019. Т. 61. № 6. С. 1162–1169.
Седых В. Д., Rybchenko O., Некрасов А. Н., Конева И. Е., Кулаков В. И.
The specific features of the structure in a polycrystalline anion-deficient strontium ferrite SrFeO3 – δ have been studied at different oxygen contents by the Mössbauer spectroscopy, X-ray diffraction, and scanning electron microscopy. Three compounds with different compositions have been prepared in the dependence on the condition of heat treatment. Within each of the structures, there are several nonequivalent positions of Fe corresponding to different valence states of Fe and different local oxygen environments, the relation and the degree of distortion of which are changed in the dependence on the oxygen content. Based on the Mössbauer data, the oxygen content in each of the structures is estimated. Yet another ideal Sr16Fe16O45 composition of the SrFeO3 – δ compound is proposed for an intermediate composition in addition to those available in the literature.
Zirnik G., Ostovari Moghaddam A., Zhukov S. et al., Journal of Materials Science: Materials in Electronics 2026 Vol. 37 Article 738
In regards to the advances in InGaZnO for flexible transistors applications, herein for the first time we measure the broadband radio-frequency range (10 Hz to 1 MHz) dielectric permittivity ε′ and electrical conductivity σ of InGaZnO4 nanoparticle layers at different temperatures ranging from 10 to 300 K. The InGaZnO4 nanoparticles prepared by metal–nitrate–glycol gel decomposition method exhibited ...
Added: June 6, 2026
Flamarion M. V., Pelinovsky E., Nonlinear Dynamics 2026 Vol. 114 Article 784
In this article, we investigate wave packet and solitary wave dynamics in the Whitham–Ostrovsky (WO) equation. By means of a multiple-scales expansion, we formally derive a nonlinear Schrödinger (NLS) equation governing the envelope evolution.The corresponding modulational stability diagram is then obtained using the Lighthill criterion. We show that sufficiently large values of the low-frequency dispersive term render ...
Added: June 5, 2026
Hazarika A. P., Das A., Das S. K. et al., Physica B: Condensed Matter 2026 Vol. 738 Article 418803
Lemon grass (Cymbopogon citratus, LG-SiO2), horsetail (Equisetum debile, SG-SiO2), and cassava leaves (Manihot esculenta, CL-SiO2) were used to green-synthesize silica (SiO2) nanoparticles (NPs). While LG-SiO2 and SG-SiO2 had strong (101) peaks and a large 22° amorphous peak, XRD of CL-SiO2 verified crystallinity. LG-SiO2 (agglomerated porous), SG-SiO2 (rectangular-cube agglomerates), and CL-SiO2 (flake agglomerates) had different morphologies. The TEM image of LG-SiO2 revealed agglomerated ...
Added: June 4, 2026
Kornbleuth M., Opher M., Drake J. F. et al., Astrophysical Journal 2026 Vol. 1004 No. 1 Article 1
The shape of the heliosphere, regarded as comet-like since the 1960s, has recently been the subject of intense debate in the last decade. There is disagreement as to whether the heliospheric tail extends to ∼10,000 au in a comet-like shape or if it is short (∼400 au) with a split. Energetic neutral atom (ENA) maps from ...
Added: June 3, 2026
Kartsev A., Nishant T., Saswata G. et al., Journal of Materials Chemistry C 2026 Article -
Overheating remains a critical limitation in high-performance electronic and computing systems,
necessitating the development of efficient thermal management fluids. In this work, a magnetically
responsive hybrid ferrofluid was developed by incorporating two-dimensional hexagonal boron nitride
(2D-hBN) nanosheets into a Mn–Zn–ferrite-based ferrofluid. The hybrid system retains magnetic
responsiveness while leveraging the high in-plane thermal conductivity and chemical stability of 2D-hBN
nanosheets. ...
Added: June 2, 2026
Fortuna A. S., A.I. Kartsev, Gorshenkov M. V. et al., Journal of Alloys and Compounds 2026 Vol. 1070 Article 188711
The τ-phase in Mn-Al-Ga alloys is a promising candidate for rare-earth-free permanent magnets. This study re-veals that the τ(γ₂)-phase in rapidly quenched Mn55Al36Ga9 ribbons contains a high density of dislocations, which
form antiphase boundaries (APBs). Using transmission electron microscopy and density functional theory, we
demonstrate that Mn atoms at these APBs couple antiferromagnetically. This antiferromagnetic interaction is
identified ...
Added: June 2, 2026
Das A., Saikia J., Maji N. et al., ChemNanoMat 2026 Vol. 12 No. 5 Article e202500733
Developing efficient photoactive materials from bio-derived resources is vital yet challenging for achieving effective water splitting performance. In this work, nano carbon dots (CDs) of zero-dimensional (0D) were synthesized from papaya peel through a simple and eco-friendly process and subsequently anchored onto the two-dimensional (2D) layered structure of graphitic carbon nitride (g-C3N4, GCN) at various ...
Added: June 2, 2026
Wary R. R., Mahato B., Sharma N. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 17 P. 5099–5107
Development of heterojunction materials is an efficient approach for enhancing photocatalytic and photoelectrochemical processes. We develop a ZnO/CuO heterojunction via Cu doping into a ZnO matrix. Structural characterization confirmed that Cu was effectively incorporated into ZnO without any structural changes. The improved optical properties and reduced charge carrier recombination of the doped samples were confirmed ...
Added: June 2, 2026
Dikhtievskaya K., Argunov E., Kartsev A. et al., The Journal of Physical Chemistry Letters 2026 Vol. 17 No. 17 P. 4999–5004
In this study we revealed the effect of scandium doping on the electronic and superconducting properties of the MgB2 compound. Calculations demonstrate that Sc substitutes for Mg atoms, acting as an electron donor. Mg substitution diminishes the density of states in the σ-band and attenuates the electron–phonon coupling, thereby elucidating the reduction in critical temperature. Simultaneously, ...
Added: June 2, 2026
Duran E. ., Pulgar A., Izquierdo R. et al., Physica Status Solidi (A) Applications and Materials 2026 Vol. 223 No. 7 Article e202500942
Ceramic superconductors exhibit remarkable properties, including zero electrical resistance and potent magnetic behavior, operating at temperatures as high as the boiling points of liquid nitrogen (77 K) and liquid hydrogen (20 K). These characteristics position them as key enablers for sustainable technologies spanning electric propulsion, lossless energy transmission, advanced medical imaging, and quantum computation. This review presents ...
Added: June 1, 2026
Borisov V., Danilov V., Электросвязь 2025 № 12 С. 73–84
Представлены результаты математического моделирования процесса полевой эмиссии из катода малых размеров – одного из основных физических процессов, обеспечивающих работы многих электронных устройств, в частности FED-дисплеев (устройства, работающие на принципе полевой эмиссии), кантилеверов и т.д. Дается краткий обзор текущих результатов в области исследования, обосновывается актуальность задачи, приводятся примеры наиболее вероятного использования результатов решения задачи. Обсуждаются физические ...
Added: May 29, 2026
Jiang Q., Fang J., Chen J. et al., Science China Information Sciences 2026 Vol. 69 No. 6 Article 162402
Resonators based on nanoelectromechanical systems (NEMS) using two-dimensional (2D) materials with high-quality factors and excellent electrical control are critical for tunable coherent phonon dynamics, resonant sensors and wireless communications. However, their performance is fundamentally limited by the lack of a unified framework governing energy dissipation mechanisms and their electrical tunability. Here, we synergistically modulate both ...
Added: May 28, 2026
Elesin L., Shilov A., Jana S. et al., Advanced Functional Materials 2026 P. 1–10
Thermoelectric materials, long explored for energy harvesting and thermal sensing, convert heat directly into electrical signals. Extending their application to the terahertz (THz) frequency range opens opportunities for low-noise, bias-free THz detection, yet conventional thermoelectrics lack the sensitivity required for practical devices. Thermoelectric coefficients can be strongly enhanced near van Hove singularities (VHS), though these ...
Added: May 28, 2026
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
Qian X., Deng Y., Lev N. Shchur et al., Physica A: Statistical Mechanics and its Applications 2026 Vol. 696 Article 131679
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
Nartova-Bochaver S. K., Stakina Y., Тренина М. Е. et al., Клиническая и специальная психология 2026 Т. 15 № 1 С. 166–181
Context and relevance. Eco-anxiety is the anxiety arising in connection with real and possible natural changes and disasters. Eco-anxiety is a significant destabilizer of human activity and therefore needs to be monitored or intervened, which requires a tool to assess its severity. Objective. The present study is aimed at adapting the Hogg Eco-Anxiety Scale (HEAS) ...
Added: April 18, 2026
Budnikova A., Языкова Н. В., Вестник Московского городского педагогического университета. Серия: Филология. Теория языка. Языковое образование 2024 № 4 (56) С. 197–210
Статья раскрывает предметно-тематическое содержание учебника английского языка как международного для профильного вуза с позиции поликультурного подхода. На основе проведенного анализа особенностей профессионального иноязычного поликультурного общения, специфики системы поликультурного обучения английскому языку как международному (АЯМ), актуальных требований к вузовскому учебнику иностранного языка, а также анализа опубликованных учебников авторы формулируют требования к современному учебнику АЯМ для профильного ...
Added: February 12, 2026
Borovitskaya I. V., Pimenov V. N., Korshunov S. N. et al., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2025 Vol. 19 No. 5 P. 1130–1136
The effect of preliminary He+ ion implantation on the morphology and microhardness of the surface
of vanadium alloy V–10Ti–6Cr–0.05Zr–0.1Si upon subsequent exposure to high-power pulsed laser
radiation has been studied. Low-activation vanadium-based structural materials are the most corrosionresistant
with respect to Li. They are promising for reactors with a liquid blanket version, where lithium is a
coolant and tritium ...
Added: December 26, 2025
Боровицкая И. В., Пименов В. Н., Коршунов С. Н. et al., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2025 № 9 С. 81–88
Исследовано влияние предварительной имплантации ионов Не+ на морфологию и микротвердость поверхности сплава ванадия V–10Ti–6Cr–0.05Zr–0.1Si при последующем воздействии мощного импульсного лазерного излучения. Конструкционные малоактивируемые материалы на основе ванадия наиболее коррозионностойкие по отношению к Li. Они перспективны для реакторов с жидкостным вариантом бланкета, где литий является теплоносителем, а тритий — воспроизводимым материалом. Имплантацию в сплав ионов гелия ...
Added: December 14, 2025
Баранов А. И., Социология власти 2025 Т. 37 № 2 С. 85–107
The symbolic interactionists' focus on the spontaneous aspects of sociality has often been seen by critics as a failure of the perspective to comprehend structure. The article examines this issue through the prism of the problem of social change, that is, the problem of the relationship between order and the process of its transformation. The ...
Added: May 10, 2025
Kofanov Y. N., М.: ИНФРА-М, 2024.
Систематизированы методы исследования чувствительности выходных электрических, тепловых, механических и других физических характеристик систем к изменениям внутренних параметров этих процессов, моделирование которых может проводиться в области аналитических, структурных, топологических и морфологических представлений. Для полноты системного подхода автором дополнительно проведена разработка ряд новых методов. Показывается эффективность применения функций параметрической чувствительности в процессе проектирования систем с одновременно протекающими ...
Added: January 31, 2025
Krukov V. A., Научные труды Вольного экономического общества России 2024 Т. 249 № 5 С. 53–74
The article discusses present-day factors and conditions, which, in the author’s opinion, largely determine the directions of development of the fuel and energy sector of the Russian economy as a whole and its individual components (electric power industry, oil and gas industries, etc.).
The most important factors include the features of previously created energy assets (both ...
Added: January 15, 2025
Зайцев С. В., Дороганов В. А., Ястребинский Р. Н. et al., Перспективные материалы 2024 № 10 С. 37–47
Рассмотрен способ повышения механической прочности и коррозионной стойкости
к расплавам стекла и шлака алюмосиликатных огнеупоров. С этой целью были
синтезированы искусственные керамические вяжущие (ИКВ) муллито-карборундового
состава по технологии высококонцентрированных керамических вяжущих суспензий
(ВКВС). Проанализированы морфологические характеристики и размер зерен ИКВ, а также
исследованы структура и физико-механические свойства спеченных изделий. Установлено
что, формируются нанодисперсные частицы в результате механохимических процессов,
происходящих в процессе совместного ...
Added: November 26, 2024
Григорьева М. В., Шаров А. А., Zagranichny A., Социальная психология и общество 2022 Т. 13 № 1 С. 142–158
Objective. Study of the relationship between the forms of social activity of young people with the phenomena of civic consciousness, motivation and socio-demographic characteristics.Background. The living conditions and activities of modern youth are characterized by a variety of social activities, an increase in social contacts, at the same time, a transformation of communication, an increase in the ...
Added: October 8, 2024