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Реализация рентгеновских рефлектометрических схем с применением различных кристаллов-монохроматоров
Заводская лаборатория. Диагностика материалов. 2010. Т. 76. № 4. С. 34–39.
Геранин А. С., Volkov Y. O., Roshchin B. S., Якимчук И. В., Asadchikov V. E., Smirnov I. S., Shkurko V. N., Гилёв О. Н., Липин А. В.
Shabanov N., Kuricheva O., Kurbatova J. et al., / Series Working Papers SSRN "Department of Economics Ca’ Foscari University of Venice". 2026.
The carbon balance of an ecosystem is the difference between Gross Primary Productivity (GPP) and Ecosystem Respiration (Reco) as expressed by Net Ecosystem Exchange (NEE). While remote sensing retrievals of GPP have reached maturity, Reco estimation remains underexplored and ultimately cast bias on NEE. Here we present an end-to-end multi-scale analysis of the mechanism of ...
Added: August 21, 2026
Ponomarenko A., / Series Computer Science "arxiv.org". 2025.
This paper addresses the challenge of merging hierarchical navigable small world (HNSW) graphs, a critical operation for distributed systems, incremental indexing, and database compaction. We propose three algorithms for this task: Naive Graph Merge (NGM), Intra Graph Traversal Merge (IGTM), and Cross Graph Traversal Merge (CGTM). These algorithms differ in their approach to vertex selection ...
Added: July 30, 2026
Piontkovski D., / Series arXiv "math". 2026.
A noncommutative projective variety is defined, following Artin and Zhang, by a graded coherent algebra 𝐴. The category of coherent sheaves is then the quotient qgr(𝐴) of the category of finitely presented graded modules by the subcategory of torsion modules. We consider the categorical and polynomial entropies of the Serre twist, that is, of the ...
Added: June 23, 2026
Piontkovski D., / Series arXiv "math". 2025.
If a symmetric multilinear algebra is weakly nil, then it is Engel. This result may be regarded as an infinite-dimensional analogue of the well-known Jacobian theorem, which states that if a polynomial mapping has a polynomial inverse, then its Jacobian matrix is invertible. This refines a theorem of Gerstenhaber and partially answers a question posed ...
Added: June 23, 2026
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
Гущина В. А., / Series chemrxiv-2023-vpzhz-v2 "ChemRxiv". 2023.
All-inorganic perovskite CsPbBr3 and Cs4PbBr6 nanoparticles are being intensively studied due to their unique properties and wide range of applications; however, however, the nature of their optical properties is not yet fully understood due to the difficulty of synthesis of singlephase nanoparticles. In this article we describe the features of the synthesis of single-phase particles ...
Added: May 14, 2026
Гущина В. А., Russian Journal of Inorganic Chemistry 2024 Vol. 69 No. 6 P. 940–948
Currently, ABX3 nanoparticles (NPs) based on lead halides attract the attention due to their unique optical properties and a wide range of applications. The preparation of NPs with lead as a partial or complete replacement is particularly interesting because of the toxicity of this chemical element and most of its compounds. In this study, we propose a ...
Added: May 6, 2026
Derkacheva A., Sakirkina M., Kraev G. et al., /. 2026.
Comprehensive data on natural hazards and their consequences are crucial for effective for risk assessment, adaptation planning, and emergency response. However, many countries face challenges with fragmented, inconsistent, and inaccessible data, particularly regarding local-scale events. To address this data gap in Russia, we developed an end-to-end processing pipeline that scrapes news from various online sources, ...
Added: April 28, 2026
Pilé I., Deng Y., Shchur L., / Series arXiv "math". 2026. No. 2604.10254.
We investigate the spatial overlap of successive spin configurations in Markov chain Monte Carlo simulations using the local Metropolis algorithm and the Svendsen-Wang and Wolff cluster algorithms. We examine the dynamics of these algorithms for two models in different universality classes: the Ising model and the Potts model with three components. The overlap of two ...
Added: April 20, 2026
Gabdullin N., Androsov I., / Series Computer Science "arxiv.org". 2026.
Label prediction in neural networks (NNs) has O(n) complexity proportional to the number of classes. This holds true for classification using fully connected layers and cosine similarity with some set of class prototypes. In this paper we show that if NN latent space (LS) geometry is known and possesses specific properties, label prediction complexity can ...
Added: April 2, 2026
Sorokin K., Beketov M., Онучин А. et al., / arxiv.org. Серия cs.SI "Social and Information Networks ". 2025.
Community detection in complex networks is a fundamental problem, open to new approaches in various scientific settings. We introduce a novel community detection method, based on Ricci flow on graphs. Our technique iteratively updates edge weights (their metric lengths) according to their (combinatorial) Foster version of Ricci curvature computed from effective resistance distance between the ...
Added: January 15, 2026
Gridchin V., Dvoretckaia L., Kotlyar K. et al., Nanomaterials 2022 Vol. 12 No. 14 Article 2341
GaN nanowires were grown using selective area plasma-assisted molecular beam epitaxy on SiOx/Si(111) substrates patterned with microsphere lithography. For the first time, the temperature–Ga/N2 flux ratio map was established for selective area epitaxy of GaN nanowires. It is shown that the growth selectivity for GaN nanowires without any parasitic growth on a silica mask can ...
Added: October 4, 2022
Monakhov I.S., Bondarenko G.G., Inorganic Materials: Applied Research 2019 Vol. 10 No. 5 P. 1058–1064
The kinetics of growth of a nanosized germanium film deposited by magnetron sputtering on the
Si(001) surface is studied using a developed experimental X-ray reflectometry technique distinguished by the
joint recording of specularly reflected and diffusely scattered radiation. By using this technique, it is possible
to perform in situ both the analysis of the morphology of the growing ...
Added: September 21, 2019
Арутюнян В., Алексанян Э., Григорян Н. et al., В кн.: Proceedings of International Conference on Nuclear and Radiation Physics and Materials NRPM 2019 (Yerevan, Armenia, June 17-20, 2019). Yerevan, Armenia, ANSL, 2019.: Ер.: Yerevan Physics Institute, 2019. С. 83–91.
В работе проведено изучение структуры и оптических свойств облученных терморегулирующих покрытий на внешней поверхности космического аппарата – немодифицированного ортосиликата цинка (виллемита) Zn2SiO4 и виллемита, , легированного церием и иттрием - Ce/Y-Zn2SiO4. Исследованы оптические спектры диффузионного отражения, фотолюминесценция, выполнен электронно-микроскопический анализ структуры поверхности образцов, облученных электронами с энергиями 4 МэВ и 20 МэВ. При имитационных исследованиях ...
Added: June 28, 2019
Monakhov I., Bondarenko G., Перспективные материалы 2019 № 2 С. 14–22
Исследована кинетика роста наноразмерной пленки германия, осажденной магнетронным
распылением на поверхности Si(001), с помощью разработанной экспериментальной
рентгенорефлектометрической методики, отличающейся совместной регистрацией
зеркально-отраженного и диффузно-рассеянного излучения. С помощью данной методики
можно осуществлять in situ как анализ морфологии растущей пленки, так и контроль
ее толщины с точностью до 1 нм. Получены зависимости интенсивности зеркального
отражения, диффузного рассеяния, скорости роста, среднеквадратичной шероховатости
пленки и ее ...
Added: January 31, 2019
Prutskov G. V., Пашаев Э. М., Субботин И. А. et al., В кн.: Первый российский кристаллографический конгресс. Сборник тезисов.: М.: НП-Принт, 2016. С. 134–134.
В работе показано использование комплементарного подхода к анализу серии разнородных экспериментов на примере рентгеновских методов исследований. ...
Added: February 14, 2017
Likhachev I. A., Subbotin I. A., Prutskov G. V. et al., , in: First AfLS Conference and Workshop 2015. Book of abstracts.: [б.и.], 2015. P. 23–23.
A complementary approach for studying multilayer heterostructes with X-Ray investigation methods was represented. Approach examination was conducted by analysis XRR and HRXRD data for the δ-Mn/InGaAs/GaAs heterostructure and series of XRR experiments with a different wavelengths for the Fe/Cr/Gd/Cr superlattice. ...
Added: June 17, 2016
Prutskov G. V., Rogachev A., Terevtyev A. V., В кн.: Научно-техническая конференция студентов, аспирантов и молодых специалистов НИУ ВШЭ им. Е.В. Арменского. Материалы конференции.: М.: МИЭМ НИУ ВШЭ, 2016. С. 284–284.
В работе показаны результаты структурных исследований гетерокомпозиций Si/EuO/cap-layer, при помощи совместной обработки результатов рентгеновской дифракции и рефлектометрии. Получены профили распределения компонент поляризуемости для образцов по глубине. ...
Added: June 17, 2016
Дровосеков А. Б., Крейнес Н. М., Савицкий А. О. et al., Журнал экспериментальной и теоретической физики 2015 Т. 147 № 6 С. 1204–1219
The effect of the chromium layer thickness on the magnetic state of an [Fe/Cr/Gd/Cr]n multilayer structure is studied. A series of Fe/Cr/Gd structures with Cr layer thicknesses of 4–30 Å is studied by SQUID magnetometry and ferromagnetic resonance in the temperature range 4.2–300 K. The obtained experimental results are described in terms of an effective ...
Added: June 9, 2015
Prutskov G. V., Ковальчук М. В., Пашаев Э. М. et al., В кн.: Нанотехнологии функциональных материалов (НФМ’14): Труды международной научно-технической конференции.: СПб.: Издательство Санкт-Петербургского политехнического университета, 2014. С. 423–423.
В статье приводится исследование структур различных новых функциональных материалов, таких как эпитаксиальные слои оксида европия на кремнии или гетероструктуры на основе твердых растворов вида InP/AlGaAs/InAs/InGaAs/InAlAs при помощи методов высокоразрешающей рентгеновской дифракции и рентгеновской рефлектометрии. Полученные этими методиками результаты показали хорошее согласование как друг с другом, так и с другими методами изучения структурного совершенства материалов, такими как ...
Added: December 25, 2014
Prutskov G. V., Субботин И. А., Ковальчук М. В. et al., , in: XTOP 2014, Book of abstract. 12th Biennial Conference on High-Resolution X-Ray Diffraction and Imaging, 14 - 19 september 2014.: [б.и.], 2014. P. 186–186.
In this work authors presented new approach to investigation of multilayer heterostructures by joint calculation HRXRD and XRR data. ...
Added: December 25, 2014
Eriskin A. A., В кн.: Научно-техническая конференция студентов, аспирантов и молодых специалистов НИУ ВШЭ. Материалы конференции.: М.: МИЭМ НИУ ВШЭ, 2014. С. 225–226.
Investigated the effect of annealing on the optical properties of metallic films obtained by setting the plasma-focus "PF-4" on glass substrates. The transmission spectra of these films before and after annealing in air at about 900 K for about 10 minutes. Shows the effect of carbon on the optical properties and electrical conductivity of the ...
Added: December 6, 2014
Mamichev D. A., Kuznetsov I. A., Andreev A. V. et al., Crystallography reports 2014 Vol. 59 No. 1 P. 125–131
Subwave gratings with optimized architecture corresponding to the spectral position of resonances at desired wavelengths have been fabricated by ion-beam lithography. The structural and optical properties of the nanostructures have been studied. It is shown that experimental transmission (reflection) spectra are in good agreement with the theoretical spectra calculated within the grating-eigenmode model. An analysis ...
Added: October 16, 2014
Smirnov I. S., Мамичев Д. А., Андреев А. В. et al., Кристаллография 2014 Т. 59 № 1 С. 137–144
By using ion-beam lithography we have obtained subwavelength grating with optimized architecture corresponding to the spectral position of the resonances at desired wavelengths. Structural and optical properties of the obtained nanostructures were investigated. Signal intensity of Raman scattering from molecules of substances adsorbed on the surface gratings with optimized architecture increased to 10 000 ...
Added: February 20, 2014