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Некоторые особенности конструирования катодных узлов для магнетронов импульсного действия с повышенной надёжностью и сроком службы
Наукоемкие технологии. 2014. Т. 15. № 11. С. 32–39.
Kharitonova N. E., Ли И. П., Поляков В. С., Силаев А. Д., Каширина Н. В., Калушин С. В., Лифанов Н. Д., Комиссарчик С. В.
Priority areas:
engineering science
Language:
Russian
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
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
Kagan M., Silkin V. M., Efremov D. V., / Series arXiv "math". 2024. No. 2411.12836.
In this study, we analyze the dielectric function of high-Tc cuprates as a function of doping level, taking into account the full energy band dispersion within the CuO2 monolayer. In addition to the conventional two-dimensional (2D) gapless plasmon mode, our findings reveal the existence of three anomalous branches within the plasmon spectrum. Two of these branches ...
Added: November 27, 2024
Influence of anisotropy on the study of critical behavior of spin models by machine learning methods
Sukhoverkhova D., Shchur L., / Series arXiv "math". 2024. No. 2410.14523.
In this paper, we applied a deep neural network to study the issue of knowledge transferability between statistical mechanics models. The following computer experiment was conducted. A convolutional neural network was trained to solve the problem of binary classification of snapshots of the Ising model's spin configuration on a two-dimensional lattice. During testing, snapshots of ...
Added: October 21, 2024
Mozolenko V., Fadeeva Marina, Shchur L., / Series arXiv "math". 2024. No. 2405.10865.
The development of new algorithms for simulations in physics is as important as the development of new analytical methods. In this paper we present a comparison of the recently developed microcanonical population annealing (MCPA) algorithm with the rather mature Wang-Landau algorithm. The comparison is performed on two cases of the Potts model exhibiting a first ...
Added: May 20, 2024
Kagan M., Аксёнов С. В., / Series Research Square "Research Suqare". 2024. No. 1.
We study different resonances (first of all of the Fano type) in the interference device formed by the Aharonov-Bohm ring with superconducting (SC) wire in the topologically nontrivial state playing a role of a bridge between top and bottom arms. We analyze Majorana modes on the ends of the SC wire and show that the collapse of the ...
Added: April 10, 2024
Ребров Я. В., Glazkov V., Murtazoev A. F. et al., / Series cond-mat "arxiv.org". 2023.
Nabokoite family compounds ACu7(TeO4)(SO4)5Cl (A=Na, K, Cs, Rb) are one of the candidates for the evasive spin-liquid state predicted for highly-frustrated square kagome lattice (SKL). Their magnetic subsystem includes SKL layers decorated by additional copper ions. All members of this family are characterized by quite high Curie-Weiss temperatures (∼80−200 K), but magnetic ordering was reported ...
Added: January 29, 2024
Shurakov A., Kaurova N., Belikov I. et al., / Series Physics "arxiv.org". 2022.
In this paper, we report on the method of nondestructive quality control that can be used in fabrication of GaAs high-speed electronics. The method relies on the surface potential mapping and enables rigid in vivo analysis of transport properties of an active electronic device incorporated into a complex integrated circuit. The study is inspired by ...
Added: September 15, 2023
G. G. Bondarenko, Kristya V. I., Fisher M. R., Journal of Surface Investigation: X-Ray, Synchrotron and Neutron Techniques 2023 Vol. 17 No. 1 P. 84–89
A model of glow gas discharge in the presence of a thin insulating film on the cathode is formulated.
It takes into account that under discharge current flow, due to the bombardment of the cathode by ions,
positive charges accumulate on the film and generate strong electric field in it. As a result, field emission of
electrons from ...
Added: March 27, 2023
Bondarenko G., Кристя В. И., Фишер М. Р., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 2023 № 1 С. 92–98
Сформулирована модель тлеющего газового разряда при наличии на катоде тонкой диэлектрической пленки. В ней принимается во внимание, что при протекании разрядного тока вследствие бомбардировки катода ионами на пленке накапливаются положительные заряды, создающие в ней
сильное электрическое поле. В результате начинается полевая эмиссия электронов из металлической подложки катода в диэлектрик, которая при повышении его температуры переходит в ...
Added: March 27, 2023
Pugach N., Safonchik M. O., Belotelov V. et al., / Series "cond-mat". 2022. No. 2110.00369.
A detailed investigation of a superconducting spin-triplet valve is presented. This spin-valve consists of a superconducting film covering a metal with an intrinsic spiral magnetic order, which could result from competing isotropic exchanges or, if the crystal lattice breaks central symmetry, from asymmetric Dzyaloshinskii-Moriya exchange. Depending on the anisotropy, such a metal may change its ...
Added: November 16, 2022
Novikov S. V., / Series cond-mat "arxiv.org". 2022. No. 2209.14955.
Charge transport in amorphous semiconductors having spatially correlated exponential density of states (DOS) has been considered for the arbitrary behavior of the correlation function of random energies. Average carrier velocity is exactly calculated for the quasi-equilibrium (nondispersive) transport regime. For the symmetric exponential DOS with exponential tails for low and high energies and non-positive correlation ...
Added: November 1, 2022
Ikhsanov R., Mazur E., Kagan M., / Series "Working papers by Cornell University". 2022. No. 2202.01452.
At present, the task of searching for compounds with a high superconducting transition temperature is a very relevant scientific direction. Usually, the calculation of is carried out by numerically solving the system of Eliashberg equations. In this paper, a set of programs for solving this system written in various forms on the imaginary axis is ...
Added: February 4, 2022
Budkov Y., Zavarzin S., Kolesnikov A. L., Journal of Physical Chemistry C 2021 Vol. 125 No. 38 P. 21151–21159
We formulate a general mean-field theory for a flat electric double layer in ionic liquids and electrolyte solutions with ions possessing static polarizability and a permanent dipole moment on a charged electrode. We establish a new analytical expression for electric double-layer differential capacitance, determining it as an absolute value of the ratio of the local ...
Added: September 16, 2021
Sanina N., Isaeva U., Utenyshev A. et al., Inorganica Chimica Acta 2021 Vol. 527 Article 120559
A new inhibitor of phosphodiesterase (PDE), i.e., nitric oxide (NO) donor, a water soluble DNIC Na[Fe(C7H5N4S)2(NO)2]⋅2.5H2O (1), has been synthesized. The structure of the new complex, its physical-chemical properties in the solid state and in solutions have been studied experimentally (X-ray analysis, IR, UV-Vis, Mossbauer spectroscopy, mass-spectrometry, and amperometry) and theoretically (quantum-chemical modeling by DFT ...
Added: September 16, 2021
Kharitonova N. E., Поляков В. С., Ли И. П. et al., В кн.: Вакуумная наука и техника: Материалы ХХ юбилейной научно-технической конференции.: М.: МИЭМ НИУ ВШЭ, 2013. С. 240–243.
Магнетрон с запускающими эмиттерами на концевых экранах катодных узлов ...
Added: February 11, 2016
Бондаренко Г.Г., Шишков А. В., Поверхность. Рентгеновские, синхротронные и нейтронные исследования 1995 № 9 С. 35–38
При исследовании алюминий-литиевого сплава Аl— 2,2 мас.% Li получены высокие вторично-эмиссионные свойства при сравнительно низких температурах эксплуатации (300—400° С). Максимальное значение коэффициента вторичной электронной эмиссии (σmax = 7) для сплава, проактивированного в оптимальном режиме (выдержка при 450° С в течение 2 ч), достигается при сравнительно низкой энергии первичных электронов 600 эВ. Получено низкое значение первого ...
Added: January 27, 2014
Bondarenko G.G., Kristya V. I., Prasitskii V. V. et al., Russian Metallurgy (Metally) 2003 No. 2 P. 155–158
A model for the transfer of a material evaporated from electrodes in the discharge volume of a high-pressure gas discharge lamp is constructed. The flux density of the evaporated material depositing onto the walls of the discharge bulb and the end of an electrode base is calculated. The effect of the redeposition of the evaporated ...
Added: December 3, 2013
Bondarenko G.G., Zhdanov S. M., Korzhavyi A. P., Journal of Advanced Materials 2001 Vol. 5 No. 4 P. 17–23
The results of obtaining and studying the emission properties of platinum-oxide compounds have been presented. The optimal regime for activating such compounds has been founded. ...
Added: November 29, 2013
Чистяков К. И., В кн.: Труды Российского научно-технического общества радиотехники, электроники и связи имени А.С. Попова. Выпуск LXVIIВып. 67.: М.: РНТОРЭС им. А.С.Попова, 2012. С. 388–390.
Рассмотрена проблема повышения выходной мощности и долговечности магнетронов коротковолновой части миллиметрового диапазона длин волн. Предлагается применение режима взаимодействия электронного потока с высшей пространственной гармоникой π вида колебаний. Описаны преимущества этого режима перед применяемыми в настоящее время. Рассмотрены его недостатки и способы их устранения. Приведены расчетные данные, согласно которым, использование рассматриваемого режима взаимодействия является перспективным в ...
Added: February 9, 2013
Чистяков К. И., Гурко А. А., В кн.: 22-я Международная Крымская конференция «СВЧ-техника и телекоммуникационные технологии», Материалы конференции, в двух томах. 10—14 сентября 2012 г. Севастополь, Крым, Украина (КрыМиКо-2012).: Севастополь: Вебер, 2012. С. 246–247.
Предложен способ косвенной оценки «разрушения» спектра пространственных гармоник высокочастотного поля замедляющей системы магнетрона миллиметрового диапазона, который позволяет своевременно обнаруживать в процессе производства признаки возникновения дефектов колебательной системы магнетрона, приводящих к образованию скрытого брака по к.п.д. ...
Added: January 18, 2013
Чистяков К. И., Гурко А. А., В кн.: 22-я Международная Крымская конференция «СВЧ-техника и телекоммуникационные технологии», Материалы конференции, в двух томах. 10—14 сентября 2012 г. Севастополь, Крым, Украина (КрыМиКо-2012).: Севастополь: Вебер, 2012. С. 231–232.
Описаны метрологические способы экспериментальной оценки соответствия реальных колебательных систем магнетрона допустимым пределам «разрушения» спектра пространственных гармоник высокочастотного поля замедляющей системы. ...
Added: January 18, 2013