Исследование квазиодномерных проводящих структур в полимерных слоях

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Исследование квазиодномерных проводящих структур в полимерных слоях

Известия РАН. Серия физическая. 2025. Т. 89. № 3. С. 402–407.

Корнилов В. М., Карамов Д. Д.

An experimental study was made of local switching in submicrometer polymer films, the consequence of which is the appearance of quasi-one-dimensional conductive structures of nanoscopic dimensions. The switching area was visualized using conductive probe atomic force microscopy.

Research target: Physics

Publication based on the results of:

Квантовые эффекты в низкоразмерных гибридных наноструктурах (2025)

Signatures of Reconnection and a Split Heliospheric Tail in High-energy Energetic Neutral Atoms

Kornbleuth M., Opher M., Drake J. F. et al., Astrophysical Journal 2026 Vol. 1004 No. 1 P. 1–18

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

Two-dimensional hexagonal boron nitride-ferrofluid hybrids enable efficient magnetic cooling

Карцев А. И., 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

The critical role of shear antiphase boundaries in τ-Mn(Al,Ga) rapidly quenched alloy

Карцев А. И., Fortuna A. S., 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

Combined Experimental and Ab Initio Study of Sc Doping in MgB2: Decoupling Electronic and Microstructural Effects on Superconductivity

Dikhtievskaya K., Argunov E., Карцев А. И. 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

Bridging Superconductors With United Nations Development Goals: Perspectives and Applications

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

Численное моделирование полевой эмиссии из полупроводникового катода в вакуум

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

Электростатически управляемый контроль диссипации в двумерном наноэлектромеханическом резонаторе через напряжение-амплитудный антагонизм с рекордной 928% подстройкой добротности.

Arutyunov K., JIANG1 Q., FANG J. et al., Science China Information Sciences 2026 Vol. 69 No. 6 P. 1–11

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

Enhanced Terahertz Thermoelectricity Via Engineered Van Hove Singularities and Nernst Effect in Moiré Superlattices

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

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., 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

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., S. V. Pilipenko, Mikhalchenko A. O. et al., Astronomy Reports 2026 Vol. 70 No. 1 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

Влияние частоты переменного поля на электрофизические свойства полимерных пленок

Корнилов В. М., Карамов Д. Д., Хусаинов Т. Р. et al., Известия УНЦ РАН 2023 Т. 2 С. 20–27

Added: December 25, 2023

Исследование полимер-полимерных интерфейсов методом атомно-силовой микроскопии

Корнилов В. М., Карамов Д. Д., Абакумов А. Н. et al., Известия УНЦ РАН 2023 Т. 2 С. 5–14

Представлены результаты экспериментального исследования полимер-полимерных интерфейсов всубмикронных пленках полидифениленфталида. Методами атомно-силовой микроскопии было установ-лено, что полимерные пленки обладают внутренней структурой, причем структурные элементы имеютформу сфероидов. Свойства полимера и характер наблюдаемых изображений позволили использовать дляописания результатов модель хрупкого разрушения полимера. Предложена модель формирования интер-фейсных слоев на границах раздела между элементами надмолекулярной структуры и между последова-тельно нанесенными ...

Added: December 25, 2023

Resonant activation of resistive switching in ZrO2(Y) films

Ryabova M. A., Filatov D. O., Koryazhkina M. N. et al., , in: Journal of Physics: Conference Series, Vol. 1851Vol. 1851. Issue 1.: IOP Publishing, 2021. Ch. 012003 P. 1–6.

Local resistive switching (RS) in ZrO2(Y) films on conductive substrates has been studied using Conductive Atomic Force Microscopy (CAFM). Switching was performed by triangle voltage pulses with superimposed a high-frequency (HF) sinusoidal signal applied to the contact of the CAFM probe to the ZrO2(Y) film (together constituting a nanometer-sized virtual memristor). Earlier, the enhancement of ...

Added: March 4, 2023

Stochastic model of memristor based on the length of conductive region

Agudov N. V., Dubkov A. A., Safonov A. V. et al., Chaos, Solitons and Fractals 2021 Vol. 150 Article 111131

We propose a stochastic model of a voltage controlled bipolar memristive system, which includes the properties of widely used dynamic SPICE models and takes into account the fluctuations inherent in memristors. The proposed model is described by rather simple equations of Brownian diffusion, does not require significant computational resources for numerical modeling, and allows obtaining the exact analytical solutions ...

Added: December 14, 2022

VOx Phase Mixture of Reduced Single Crystalline V2O5:VO2 Resistive Switching

Walls B., Murtagh O., Bozhko S. et al., Materials 2022 Vol. 15 No. 21 Article 7652

The strongly correlated electron material, vanadium dioxide (VO2), has seen considerable attention and research application in metal-oxide electronics due to its metal-to-insulator transition close to room temperature. Vacuum annealing a V2O5(010) single crystal results in Wadsley phases (VnO2n+1, n > 1) and VO2. The resistance changes by a factor of 20 at 342 K, corresponding to the metal-to-insulator phase ...

Added: December 11, 2022