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Структурная диагностика функциональных наноматериалов с использованием рентгеновского синхротронного излучения / Н. Н. Трофимова [и др.] // Рос. нанотехнологии. - 2013. - Т. 8, № 5-6. - С. 108-112
Аннотация: Представлена экспериментальная установка комплексной рентгеновской диагностики функциональных наноструктурированых материалов – станция «Структурное материаловедение», установленная на Курчатовском источнике синхротронного излучения. Дано описание ключевых конструктивных элементов станции. Исследовательские возможности станции продемонстрированы на примере «прозрачных магнитов» – стекол с магнитными наночастицами, перспективных для дизайна устройств магнитооптического хранения информации и спинтроники.

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Переводная версия Structural diagnostics of functional nanomaterials with the use of X-ray synchrotron radiation. - [Б. м. : б. и.]

Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Трофимова, Н. Н.; Велигжанин, А. А.; Мурзин, В. Ю.; Чернышов, А. А.; Храмов, Е. В.; Заблуда, Владимир Николаевич; Zabluda, V.N.; Эдельман, Ирина Самсоновна; Словохотов, Ю. Л.; Зубавичус, Я. В.
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Описание изобретения к патенту 2347296


    Магнитоуправляемый детектор свч излучения / Н. В. Волков [и др.] ; патентообладатель Институт физики им. Л.В. Киренского Сибирского отделения РАН. - № 2007127230/28 ; Заявл. 16.07.2007 // Изобретения. Полезные модели : офиц. бюл. Фед. службы по интеллектуал. собственности (Роспатент). - 2009. - № 5
   Перевод заглавия: Magnetically operated detector of shf radiation
Аннотация: Магнитоуправляемый детектор СВЧ излучения относится к технике СВЧ и может использоваться при создании радиоаппаратуры для связи, радиолокации, в измерительной технике, в научном приборостроении. Магнитоуправляемый детектор СВЧ излучения включает детектирующий элемент на туннельном контакте, находящийся в магнитном поле. Причем детектирующий элемент выполнен из магнитного гранулированного материала с большим набором магнитных туннельных контактов, на который подается ток смещения и который установлен в пучности магнитной составляющей СВЧ излучения. СВЧ излучение вызывает прецессию намагниченности части гранул, находящихся в условиях ферромагнитного резонанса, и одновременно индуцирует высокочастотный ток в материале. Технический результат: увеличение чувствительности детектора с сохранением его частотно-селективных свойств, управляемых магнитным полем, упрощение конструкции и технологии изготовления детектирующего устройства. 4 ил.
Magnetically operated detector of SHF radiation is related to SHF equipment and may be used in development of radio equipment for communication, radio location, in control instrumentation, in scientific instrument making. Magnetically operated detector of SHF radiation comprises detecting element on tunneling contact located in magnetic field. At that detecting element is made of magnetic granulated material with large set of magnetic tunneling contacts, to which offset current is supplied and which is installed in antinode of SHF radiation magnetic component. SHF radiation causes precession of some granules magnetisation, which are under effect of ferromagnetic resonance conditions, and at the same time it induces high frequency current in material./p p num="35"EFFECT: increase of detector sensitivity with preservation of its frequency-selective properties controlled by magnetic field, simplification of design and technology of detecting device manufacture./p p num="36"4 dwg/p

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Держатели документа:
Институт физики им. Л.В. Киренского Сибирского отделения РАН

Доп.точки доступа:
Волков, Никита Валентинович; Еремин, Евгений Владимирович; Цикалов, Виталий Сергеевич; Шайхутдинов, Кирилл Александрович; Петров, Михаил Иванович; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Федеральная служба по интеллектуальной собственности (Роспатент); Федеральный институт промышленной собственности
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    Коллективные решеточные резонансы в диэлектрических наноструктурах при наклонных падениях оптического излучения / А. Д. Утюшев, А. Е. Ершов [и др.] // Решетневские чтения : [Электронный ресурс] : материалы XXIV Междунар. науч.-практич. конф., посвящ. памяти ген. конструктора ракет.-космич. систем акад. М. Ф. Решетнева : в 2-х ч. : электронное издание. - Красноярск : СибГУим. М. Ф. Решетнева, 2020. - Ч. 1. - С. 458-460. - Библиогр.: 2. - Работа поддержана Министерством науки и высшего образования Российской Федерации, проект номер ФСРЗ-2020-008.
   Перевод заглавия: Collective lattice resonances dielectric nanostructures at different angles of incidence radiation
Аннотация: Тонкие нанокомпозитные ZnO/SWCNTs пленки были синтезированы с помощью вакуумной фильтрации и атомно-слоевого осаждения. Были измерены вольт-амперные характеристики образцов пленок. Наосновевольт-амперных характеристик было рассчитано электрическое сопротивление для нанокомпозитных ZnO/ОУНТ пленок.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Утюшев, А. Д.; Ершов, Александр Евгеньевич; Ershov, A. E.; Герасимов, Валерий Сергеевич; Gerasimov, V. S.; Закомирный, Вадим Игоревич; Карпов, Сергей Васильевич; Karpov, S.V.; "Решетневские чтения", международная научно-практическая конференция(24 ; 2020 ; нояб. ; 10-13 ; Красноярск); Сибирский государственный университет науки и технологий им. акад. М. Ф. Решетнева; Информационные спутниковые системы им. академика М. Ф. Решетнева, АО; Красноярский машиностроительный завод, ОАО
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    Влияние многоуровнего характера спектра полупроводниковых наночастиц на энергию их взаимодействия в квазирезонансном электромагнитном поле / А. А. Глушков [и др.] // В мире науч. открытий. - 2015. - № 12.1 (72). - С. 356-368. - Библиогр.: 20 . - ISSN 2072-0831. - ISSN 2307-9428
   Перевод заглавия: Effect of multilevel nature of the spectrum of quantum dots in the energy of their interaction in quasi-resonant electromagnetic field
Кл.слова (ненормированные):
диполь-дипольное взаимодействие -- наночастицы и наноструктуры -- взаимодействие лазерного излучения с веществом -- дисперсионные соотношения -- dipole-dipole interaction -- nanoparticles and nanostructures -- interaction of laser radiation with matter -- dispersion relations
Аннотация: Произведен расчет энергетических спектров взаимодействия пары наночастиц CdSe в квазирезонансном электромагнитном поле, для случаев одинаковых частиц и частиц с отличающимися длинами волн переходов, использовано диполь-дипольное приближение. Показано, что учет дополнительных переходов значительно увеличивает величину энергии взаимодействия для потенциальной ямы, лежащей в длинноволновой области спектра. На примере двух частиц с ограниченным числом резонансов исследовано влияние разности резонансных длин волн на глубину и положение потенциальной ямы.
Spectral dependences of interaction energy of multilevel semiconductor quantum dots are calculated in dipole-dipole approximation for a pair of CdSe quantum dots in a quasi-resonant laser field, for cases of two identical quantum dots and those with differing transition wavelengths. Interaction energy of pair of multilevel quantum dots in the long-wavelength potential well is much higher than that of pair of two-level quantum dots.

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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН

Доп.точки доступа:
Глушков, А. А.; Glushkov, А. А.; Слюсарева, Евгения Алексеевна; Slyusareva, E. A.; Ципотан, Алексей Сергеевич; Tsipotan, A. S.; Слабко, Виталий Васильевич; Slabko, V. V.; Александровский, Александр Сергеевич; Aleksandrovsky, A. S.
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Zaitsev, N. K.
Application of glow-discharge at atmospheric-pressure for recording of laser-radiation / N. K. Zaitsev, N. Y. Shaparev // Zhurnal Tek. Fiz. - 1980. - Vol. 50, Is. 1. - P. 168-170. - Cited References: 6 . - ISSN 0044-4642

РУБ Physics, Applied

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Держатели документа:
Институт физики им. Л. В. Киренского
Доп.точки доступа:
Shaparev, N. Y.; Шапарев, Николай Якимович; Зайцев, Николай Кондратьевич
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Vyunishev, A. M.
Cherenkov second harmonic generation of femtosecond laser pulses in a homogeneous nonlinear crystal / A. M. Vyunishev, A. S. Chirkin // Laser Phys. - 2024. - Vol. 34, Is. 8. - Ст. 085402, DOI 10.1088/1555-6611/ad5156. - Cited References: 37 . - ISSN 1054-660X. - ISSN 1555-6611
Кл.слова (ненормированные):
second harmonic generation -- nonlinear diffraction -- nonlinear Cherenkov radiation -- femtosecond laser pulses
Аннотация: In experiments on second harmonic (SH) generation (SHG), a conical structure of radiation has been observed. In the present study, a non-stationary theory of SH excitation of ultrashort laser pulses with phase modulation has been developed, which explains the properties of such a structure as Cherenkov radiation. Under phase-mismatched interactions, a maximum of the SH spectrum is observed at the Cherenkov angle, which is determined by the ratio of the SH and laser radiation phase velocities. It is shown that tightly focused laser beams are preferred to observe Cherenkov SHG. The SH spectral width depends on the group velocity mismatch and is more complicated on the excited radiation spectrum. The SH energy can be proportional to the crystal length or group delay length depending on their ratio. We also demonstrate that a complex angular distribution of spectral components (an angular chirp) appears within the SH cross-section.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Department of Photonics and Laser Technology, Siberian Federal University, Krasnoyarsk 660079, Russia
M.V. Lomonosov Moscow State University, Moscow 119991, Russia

Доп.точки доступа:
Chirkin, A. S.; Вьюнышев, Андрей Михайлович
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Vetrov, S. Ya.
Anisotropy of nonlinear optical transmission at the edge of the photonic band gap of an apodized layered medium / S. Ya. Vetrov, I. V. Timofeev, A. V. Shabanov // Optics and Spectroscopy (English translation of Optika i Spektroskopiya). - 2008. - Vol. 104, Is. 5. - P. 751-755, DOI 10.1134/S0030400X08050172 . - ISSN 0030-400X
Кл.слова (ненормированные):
Anisotropy -- Light transmission -- Multilayers -- Photonic crystals -- Refractive index -- Spectrum analysis -- Transfer matrix method -- Multilayer structure -- Nonlinear effects -- Transmission spectrum -- Laser radiation
Аннотация: The effect of Kerr nonlinearity on the transmission of laser radiation in a one-dimensional photonic crystal has been investigated by the transfer-matrix method, modified to describe nonlinear effects. The crystal under study is a thin-film multilayer structure with a spatial distribution of the refractive index, which makes it possible to eliminate side bands in the transmission spectrum at each side of the photonic band gap and significantly increase the slope of the transmission curve. The transmission spectrum of such a photonic crystal structure has been studied for two opposite directions of laser radiation propagation. The anisotropy of nonlinear transmission is most pronounced near the edge of the photonic crystal band gap, which lies in the near-IR region. The proposed structure, having strong transmission anisotropy and sufficiently low reflection in the forward direction, can operate as an optical diode (analog of an electron diode). В© 2008 Pleiades Publishing, Ltd.

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Держатели документа:
Polytechnic Institute, Siberian Federal University, Krasnoyarsk, 660074, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Timofeev, I. V.; Тимофеев, Иван Владимирович; Shabanov, A. V.; Шабанов, Александр Васильевич; Ветров, Степан Яковлевич
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Vasil'ev, E. N.
The spatial structure of a current layer in an MGD channel / E. N. Vasil'ev, D. A. Nesterov // High Temp. - 2006. - Vol. 44, Is. 4. - P. 497-506, DOI 10.1007/s10740-006-0062-7. - Cited References: 9 . - ISSN 0018-151X

РУБ Physics, Applied

Кл.слова (ненормированные):
Electric discharges -- Flow of fluids -- Gas dynamics -- High pressure effects -- Numerical methods -- Thermodynamic stability -- Current conducting channels -- Radiation gas dynamics -- Rayleigh Taylor instability -- Channel flow
Аннотация: The numerical solution of an unsteady-state three-dimensional set of equations of radiation gas dynamics is used to investigate the process of formation of a current layer in an MGD channel. It is found that the structure of current layer and the integral characteristics of interaction at low and high pressures are different because of the different patterns of radiation (volume and surface, respectively). The processes of flow past the discharge region and the division of this region into several current-conducting channels because of the development of Rayleigh-Taylor instability result in a decrease in the efficiency of MGD interaction.

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Держатели документа:
Russian Acad Sci, Siberian Div, Inst Computat Modeling, Krasnoyarsk 660036, Russia
ИВМ СО РАН
Institute of Computational Modeling, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Nesterov, D. A.; Васильев, Евгений Николаевич
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Val'kov, V. V.
Radiation-induced modification of the temperature dependence of the magnetic susceptibility of a 1D magnet / V. V. Val'kov, M. S. Shustin // JETP Letters. - 2014. - Vol. 100, Is. 7. - P. 455-462, DOI 10.1134/S0021364014190138. - Cited References: 28. - This work was supported by the Russian Foundation for Basic Research, project nos. 12-02-31130, 13-02-00523, and 13-02-98013. . - ISSN 0021-3640. - ISSN 1090-6487

РУБ Physics, Multidisciplinary
Рубрики:
SINGLE-CHAIN MAGNETS
   EASY-PLANE
   ARRANGEMENT
   MODEL
   IONS
Аннотация: TThe excitation spectrum of a catena-[FeII(ClO4)2{FeIII(bpca)2}]ClO4 anisotropic 1D magnet with alternating high-spin and low-spin iron ions has been calculated with the use of the diagrammatic technique for Hubbard operators. This has allowed establishing conformity with the Ising model, for which the magnetic susceptibility has been calculated by the transfer-matrix method. The introduction of a statistical ensemble taking into account the presence of chains with different lengths and iron ions with different spins has allowed describing the modification of the magnetic susceptibility under optical irradiation.

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Публикация на русском языке Вальков, Валерий Владимирович. Модификация температурной зависимости магнитной восприимчивости 1D-магнетика под действием облучения [Текст] / В. В. Вальков, М. С. Шустин // Письма в Журн. эксперим. и теор. физ. : Наука, 2014. - Т. 100 Вып. 7. - С. 510-517

Держатели документа:
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia

Доп.точки доступа:
Shustin, M. S.; Шустин, Максим Сергеевич; Вальков, Валерий Владимирович; Russian Foundation for Basic Research [12-02-31130, 13-02-00523, 13-02-98013]
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10.

Tikhomirov, A. A.
Photo-biological effectiveness of PAR for radish plant communities irradiated using an LED source with an adjustable spectrum / A. A. Tikhomirov, M. S. Molokeev, V. V. Velichko // Light Eng. - 2024. - Vol. 32, Is. 2. - P. 70–77, DOI 10.33383/2023-063. - Cited References: 15. - The study was carried out with financial support within the framework of State Assignment 121101300066-7 of the Ministry of Education and Science and the Strategic Academic Leadership Program "Priority-2030" for the Siberian Federal University . - ISSN 0236-2945. - ISSN 2541-9935
Кл.слова (ненормированные):
spectral composition of radiation -- spectral effectiveness of radiation -- variable radiation spectrum -- fluorescent LEDs -- radish productivity
Аннотация: The aim of the current study was to find the most effective spectral modes of irradiation of short-season plants (for example, radish) using a fluorescent LED irradiator with a variable spectrum. The research methodology was based on the species-specific response of plants to the spectral composition of light. Photo-biological experiments were carried out to find effective spectral composition of PAR for cultivating radish communities under stable and variable irradiation modes of electrical lighting. It was shown that under stable irradiation modes, the highest productivity of economically useful radish biomass had been achieved at spectral composition with a maximum of 60 % radiation in the (600–700) nm region in a variable spectral irradiation mode. The variable spectral irradiation mode turned out to be the most effective when the spectral composition with the dominance of red rays was changed to the spectral composition with the dominance of blue rays. There were no significant differences between the best production parameters for stable and variable modes of irradiation of radish plants, which indicates the expediency of choosing the stable spectral mode of irradiation of radish plants as a short-season crop under electrical illumination. The results obtained can be used to select spectral irradiation modes for short-season plants grown under electrical lighting in northern regions and in isolated rooms in various climatic zones using "City-farm" technologies.

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Держатели документа:
Biophysics Institute of the Siberian branch of Russian Academy of Sciences, Krasnoyarsk, Russia
Reshetnyov Siberian State University of Science and Technology, Krasnoyarsk, Russia
Institute of Physics SB RAS, Krasnoyarsk, Russia
Siberian Federal University, Krasnoyarsk, Russia

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Velichko, V. V.
}
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11.

Three-dimensional model of quantum dots'' self-assembly under the action of laser radiation / V. A. Tkachenko [et al.] // Комп. оптика. - 2017. - Т. 41, № 4. - С. 577-580, DOI 10.18287/2412-6179-2017-41-4-577-580. - Библиогр.: 14. - The work was funded by the Russian Foundation for Basic Research (RFBR) and Krasnoyarsk Krai administration under research project No. 16-42-240410r_a, RFBR research project No. 16-32-00129 and by the Ministry of Education and Science of the Russian Federation (Grant 3.6341.2017/VU). . - ISSN 0134-2452
Кл.слова (ненормированные):
Nanostructure fabrication -- Plasmonics -- Optical tweezers or optical manipulation
Аннотация: This study considered a process of quantum dots' self-assembly into nanostructure arrays with predefined geometry, which proceeds in the external resonant laser field. We considered the simplest case of assembling a stable structure of two particles. The problem was solved numerically using a three-dimensional model of Brownian dynamics. The idea of the method is that the attraction of the dots occurs due to the interaction of resonantly induced dipole moments, with the dots being then captured by the Van der Waals force. Finally, a three-dimensional model was considered; the average nanoparticle aggregation time as a function of the laser radiation wavelength was calculated; the probability of such structures' being formed was estimated for the calculated average aggregation time and for the laser pulse duration used in the experiment. The wavelength of the maximum probability was found to be shifted from the single particle resonance wavelength of 525 nm to the red area of 535 nm, which is in qualitative agreement with the redshift of the resonance wavelength of interacting particles.

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Держатели документа:
Kirensky Institute of Physics, Russian Academy of Sciences
Siberian Federal University

Доп.точки доступа:
Tkachenko, V. A.; Tsipotan, A. S.; Slabko, V. V.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич
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12.

Thermal influence in the process of self-assembly of quantum dots by quasi-resonant laser radiation / V. A. Tkachenko, A. S. Tsipotan, A. S. Aleksandrovsky, V. V. Slabko // Енисейская фотоника-2020 : тезисы докладов. - Красноярск : ИФ СО РАН, 2020. - P. 94. - Cited References: 3 . - ISBN 978-5-6042995-8-6

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Доп.точки доступа:
Tkachenko, V. A.; Tsipotan, A. S.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Slabko, V. V.; Слабко, Виталий Васильевич; Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук"; Институт физики им. Л.В. Киренского Сибирского отделения РАН; Сибирский федеральный университет; "Енисейская фотоника", Всероссийская научная конференция с международным участием(1 ; 2020 ; сент. ; 14-19 ; Красноярск)
Нет сведений об экземплярах (Источник в БД не найден)
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13.

Switching of magnons by electric and magnetic fields in multiferroic borates / A. M. Kuzmenko [et al.] // Phys. Rev. Lett. - 2018. - Vol. 120, Is. 2. - Ст. 027203, DOI 10.1103/PhysRevLett.120.027203. - Cited References: 72 . - ISSN 0031-9007
Кл.слова (ненормированные):
Electric and magnetic fields -- Electric manipulation -- Excitation conditions -- High frequency HF -- Materials research -- Multiferroic materials -- Spin orientations -- Terahertz radiation
Аннотация: Electric manipulation of magnetic properties is a key problem of materials research. To fulfill the requirements of modern electronics, these processes must be shifted to high frequencies. In multiferroic materials, this may be achieved by electric and magnetic control of their fundamental excitations. Here we identify magnetic vibrations in multiferroic iron borates that are simultaneously sensitive to external electric and magnetic fields. Nearly 100% modulation of the terahertz radiation in an external field is demonstrated for SmFe3(BO3)4. High sensitivity can be explained by a modification of the spin orientation that controls the excitation conditions in multiferroic borates. These experiments demonstrate the possibility to alter terahertz magnetic properties of materials independently by external electric and magnetic fields.

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Держатели документа:
Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russian Federation
Institute of Solid State Physics, Vienna University of Technology, Vienna, Austria
L. V. Kirensky Institute of Physics Siberian Branch of RAS, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Kuzmenko, A. M.; Szaller, D.; Kain, T.; Dziom, V.; Weymann, L.; Shuvaev, A.; Pimenov, A.; Mukhin, A. A.; Ivanov, V. Y.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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14.

Structural diagnostics of functional nanomaterials with the use of X-ray synchrotron radiation / N. N. Trofimova [et al.] // Nanotechnologies in Russia. - 2013. - Vol. 8, Is. 5-6. - P. 396-401, DOI 10.1134/S1995078013030191 . - ISSN 1995-0780
Кл.слова (ненормированные):
Experimental facilities -- Functional Nano materials -- Kurchatov synchrotron radiation -- Magnetic nano-particles -- Research capabilities -- Structural diagnostics -- Structural elements -- X-ray synchrotron radiation -- Nanostructured materials -- Synchrotron radiation
Аннотация: An experimental facility for the complex X-ray diagnostics of functional nanomaterials (Structural Materials Science beamline) installed at the Kurchatov Synchrotron Radiation Center is presented. The key structural elements of the beamline are described. The research capabilities of the facility are demonstrated by the example of transparent magnets and glasses with magnetic nanoparticles, which are promising for the design of magneto-optical data storage and spintronics devices.

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Публикация на русском языке Структурная диагностика функциональных наноматериалов с использованием рентгеновского синхротронного излучения // Российские нанотехнологии. - Москва : Парк-медиа, 2013. - Т. 8, № 5-6. - С. 108-112

Держатели документа:
National Research Center Kurchatov Institute, pl. Kurchatova 1, Moscow, 123182, Russian Federation
Faculty of Chemistry, Moscow State University, Moscow, 119991, Russian Federation
Moscow Institute of Physics and Technology (State University), Institutskii per. 9, Dolgoprudnyi, Moscow oblast, 141700, Russian Federation
Kirenskii Institute of Physics, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, ul. Vavilova 28, Moscow, 119991, Russian Federation

Доп.точки доступа:
Trofimova, N. N.; Veligzhanin, A. A.; Murzin, V.Y; Chernyshov, A. A.; Khramov, E. V.; Zabluda, V. N.; Заблуда, Владимир Николаевич; Edel'man, I. S.; Эдельман, Ирина Самсоновна; Slovokhotov, Y. L.; Zubavichus, Y. V.
}
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15.

    Structural and compositional specifications on biogenic ferrihydrite nanoparticles production by Klebsiella oxytoca / S. Kichanov [et al.] // Rom. Rep. Phys. - 2018. - Vol. 70, Is. 4. - Ст. 511. - Cited References: 17. - This work was supported by the Joint Institute for Nuclear Research Project No. 04-4-1121-2015/2017, and RO-JINR Projects Nos. 95/15.02.2016 and 96/15.02.2016, items 77, 82 and was funded by RFBR and Krasnoyarsk region according to the research project No 17-43-240527. Support by the Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation is acknowledged. . - ISSN 1221-1451. - ISSN 1841-8759
   Перевод заглавия: Особенности структуры и химического состава биогенных наночастиц ферригидрита полученных микроорганизмами Klebsiella oxytoca
Рубрики:
MAGNETIC-PROPERTIES
Кл.слова (ненормированные):
Biogenic ferrihydrite -- nanoparticles structure -- synchrotron radiation -- powder diffraction -- PIXE -- PIGE -- RBS
Аннотация: Investigations of biogenic ferrihydrite nanoparticles produced by bacteria Klebsiella oxytoca by applying methods of synchrotron radiation powder diffraction, particle-induced X-ray emission (PIXE), proton induced gamma-emission (PIGE) and proton Rutherford backscattering (RBS) are reported and discussed.

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Держатели документа:
Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia.
Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Krasnoyarsk, Russia.
ELI NP, POB MG6, Bucharest, Romania.
Ovidius Univ, Fac Appl Sci & Engn, Constanta, Romania.
Moscow Tech Phys Inst, Dolgoprudnyi, Russia.

Доп.точки доступа:
Kichanov, S.; Pantelica, A.; Pantelica, D.; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Aranghel, D.; Ionescu, P.; Vladoiu, R.; Balasoiu, M.; Joint Institute for Nuclear Research Project [04-4-1121-2015/2017]; RO-JINR Projects [95/15.02.2016, 96/15.02.2016, 77, 82]; Krasnoyarsk region [17-43-240527]; Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation; RFBR
}
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16.

Spectral polarization of transmission radiation by uniaxially stretched polymer-dispersed liquid crystal films with modified interphase surface anchoring / A. V. Konkolovich [et al.] // 14th Eur. Conf. Liq. Cryst. (ECLC) : conf. programme / чл. нац. орг. и прогр. ком. V. Ya. Zyryanov. - 2017. - Ст. P151. - Библиогр.: 3 . - Poster

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Доп.точки доступа:
Zyryanov, V. Ya. \чл. нац. орг. и прогр. ком.\; Зырянов, Виктор Яковлевич; Konkolovich, A. V.; Zyryanov, V. Ya.; Miskevich, A. A.; Loiko, V. A.; European Conference on Liquid Crystals(14 ; 2017 ; June ; 25-30 ; Moscow); Московский государственный университет им. М.В. Ломоносова
}
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17.

    Small-angle scattering applications to the analysis of aptamer structure and conformational changes / R. V. Moryachkov, V. N. Zabluda, A. N. Berlina [et al.] // AIP Conference Proceedings : book of abstracts. - 2020. - Vol. 2299. - Ст. 040002 ; Synchrotron and free electron laser radiation: generation and application (SFR-2020). - Novosibirsk. - P. 45-46, DOI 10.1063/5.0030394. - Cited References: 40. - The reported study was funded by RFBR, project number 19-32-90266 (investigation of the structure changes). This work was financially supported by Russian Science Foundation (project # 19-44-02020, obtaining of the complexes of aptamer and lead ions). We acknowledge the European Synchrotron Radiation Facility for provision of synchrotron radiation facilities (experiment #MX-2039) and we would like to thank Bart Van Laer for assistance in using beamline BM29
   Перевод заглавия: Использование малоуглового рассеяния для анализа структуры и конформационных изменений аптамеров
Аннотация: Aptamers, structured single-chain oligonucleotides, are promising tools for detection of a wide variety of compounds, from high to low molecular weight, and affecting on them. The aptamers that are most affine for a detectable compound are selected from the libraries of random sequences by the SELEX method (Systematic evolution of ligands by exponential enrichment). The reason why aptamers deserve a special consideration lies in the specific features of their structure and the mechanism of binding to their target. Aptamers can be exploited for metal-ion sensing, biosensing, drug delivery and other functions. To apply the oligonucleotides in the medicine, ecology, food production, agriculture, etc., we need to know how the aptamers bind to their targets, how they change their conformation upon specific binding and how the environment influences on the affinity of aptamers. Small-Angle X-ray scattering showed that the interaction of aptamers with heavy metal and other divalent ions proceeds according to different mechanisms, and the aptamers used undergo different conformational changes.

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Держатели документа:
Kirensky Institute of Physics, Akademgorodok 50, bld. 38, Krasnoyarsk, 660012, Russian Federation
Federal Research Center "Krasnoyarsk Science Center SB RAS", Akademgorodok 50, Krasnoyarsk, 660012, Russian Federation
A.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Leninsky pr. 33, Moscow, 119071, Russian Federation
National Research Center “Kurchatov Institute”, Akademika Kurchatova pl. 1, Moscow, 123182, Russian Federation

Доп.точки доступа:
Moryachkov, R. V.; Морячков, Роман Владимирович; Zabluda, V. N.; Заблуда, Владимир Николаевич; Berlina, A. N.; Peters, G. S.; Kichkailo, A. S.; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Internetional Conference on Synchrotron and Free Electron Laser Radiation: Generation and Application(2020 ; 13-16 July ; Novosibirsk)

}
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18.

Small-angle scattering and radiation polarization by a stretched polymer film with nematic liquid crystal droplets having a single-domain structure / V. A. Loiko, A. V. Konkolovich, A. A. Miskevich [et al.] // Opt. Spectrosc. - 2020. - Vol. 128, Is. 3. - P. 331-338, DOI 10.1134/S0030400X20030121. - Cited References: 24. - This work was carried out within the framework of the agreement on interacademic collaboration between the National Academy of Sciences of Belarus and Siberian Branch of the Russian Academy of Sciences. It was supported by the Belarusian Republican Foundation for Fundamental Research (project no. F18RA-003). M.N. Krakhalev acknowledges the support of the Russian Foundation for Basic Research, the Government of Krasnoyarsk krai, and Krasnoyarsk Krai Foundation of Science (grant no. 18-42-243006). . - ISSN 0030-400X. - ISSN 1562-6911

РУБ Optics + Spectroscopy
Рубрики:
IONIC MODIFICATION
LIGHT
Кл.слова (ненормированные):
light scattering -- radiation polarization -- liquid crystal
Аннотация: The coefficient of directed transmittance of a stretched polymer-dispersed liquid crystal film with a defect-free single-domain liquid crystal droplet structure formed by a stretched surfactant-doped film and the polarization degree of forward-transmitted light in the visible and near-infrared spectrum ranges are studied. Results are presented for the 5CB, E7, and E44 nematic liquid crystals. Dependences of the transmission coefficient and polarizing ability of the film on the photodetector field of view are studied. Relationships allowing one to determine film parameters at which the transmission coefficient and polarizing ability of the films simultaneously reach values close to limit ones (0.5 and ±1.0, respectively) are obtained in the Foldy–Twersky and anomalous diffraction approximations.

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Публикация на русском языке Малоугловое рассеяние и поляризация излучения вытянутой полимерной пленкой с каплями нематического жидкого кристалла, имеющими монодоменную структуру [Текст] / В. А. Лойко, А. В. Конколович, А. А. Мискевич, М. Н. Крахалев // Оптика и спектроскопия. - 2020. - Т. 128 Вып. 3. - С. 343-350

Держатели документа:
Natl Acad Sci Belarus, Stepanov Inst Phys, Minsk 220072, BELARUS.
Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Loiko, V. A.; Konkolovich, A. V.; Miskevich, A. A.; Krakhalev, M. N.; Крахалев, Михаил Николаевич; Prishchepa, O. O.; Прищепа, Оксана Олеговна; Zyryanov, V. Ya.; Зырянов, Виктор Яковлевич; Belarusian Republican Foundation for Fundamental Research [F18RA-003]; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of Krasnoyarsk krai; Krasnoyarsk Krai Foundation of Science [18-42-243006]
}
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19.

Shchapova, Yuliya V..
Structural characteristics of radiation-amorphized ZrSiO4:U,Th according to Raman spectroscopy of Boson peak / Yu. V. Shchapova, A. S. Krylov, S. L. Votyakov // J. Raman. Spectrosc. - 2023. - Vol. 54, Is. 6. - P. 662-673, DOI 10.1002/jrs.6526. - Cited References: 66. - The study was carried out within IGG UB RAS State assignment, registration number 123011800012-9 (YVS and SLV). The authors thank Dmitry Zamyatin for performing electron probe microanalysis of zircon chemical composition. The authors are grateful to Olga Galakhova for X-ray diffraction measurements. The equipment of the «Geoanalitik» shared research facilities of the IGG UB RAS was used, the re-equipment and comprehensive development of which is financially supported by the grant of the Ministry of Science and Higher Education of the Russian Federation, Agreement No. 075-15-2021-680 (YVS and SLV). The temperature Raman experiments were performed in the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center ‘Krasnoyarsk Science Center SB RAS’ . - ISSN 0377-0486. - ISSN 1097-4555
Кл.слова (ненормированные):
amorphous-crystalline structure -- Boson peak -- radiation damage -- zircon
Аннотация: The structure of the amorphous fraction and the tensile-compressive stressesin amorphous-crystalline radiation-damaged zircon ZrSiO:U,Th depending on radiation dose and temperature (8–350 K) are investigated according to Raman spectroscopy of Boson peak for the first time. The Boson peak at 60–70 cm-1 associated with localized phonon states in the amorphous fraction (fa) is recorded at low temperatures (T ˂ 100 K) for samples with fa ˂ 30% and over the entire temperature range 8–350 K for fa ˃ 70%. The wider localized states distribution in the latter case is considered as a sign of the amorphous phase structure evolution with an increase in radiation dose. The estimates of anatomic correlation radius based on the Ioffe–Regel criterion are similar to those in glasses, Rc2:0 – 2:3 nm. The monotonic increase in Rc value during heating of zircon with fa ˃ 70% is governed by thermal expansion of the percolating amorphous fraction. The nonmonotonic variations of the Rc value in zircon with fa ˂ 30% is determined by the stresses in the amorphous fraction due to the mismatch in thermal expansion coefficient (CTE) and elastic moduli of the amorphous and crystalline phases depending on temperature; a change in the sign of the crystalline fraction CTE at 30 K is assumed. The Boson peak disappearance at 100 K in zircon with fa ˂ 30% during heating conforms to with the violation of the phonon localization as a consequence of amorphous fraction contraction and partial ordering. The data obtained are important for predicting the thermal and mechanical properties of heterogeneous radiation-damaged materials and nanocomposites.

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Держатели документа:
Zavaritsky Institute of Geology and Geochemistry of the Ural Branch of the Russian Academy of Sciences,Yekaterinburg, Russia
Ural Federal University named after the first President of Russia B. N. Yeltsin,Yekaterinburg, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS,Krasnoyarsk, Russia

Доп.точки доступа:
Krylov, A. S.; Крылов, Александр Сергеевич; Votyakov, Sergei L.
}
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20.

Self-organized aggregation simulation of resonant nanoparticles in a laser field / V. V. Slabko [et al.] // International Conference Laser Optics : IEEE, 2014. - Cited References:2

РУБ Engineering, Electrical & Electronic + Optics + Physics, Applied

Кл.слова (ненормированные):
interaction of laser radiation with matter -- dipole-dipole interaction -- nanoparticles -- nanostructures
Аннотация: Self-organized aggregation of nanoparticles in external resonant laser field is considered using Brownian dynamics model. Formation probabilities are calculated for the pair of particles in dependence on laser wavelength and mutual orientation of particles. Times required for aggregation are calculated. Possibility of efficient aggregation using pulsed laser is deduced.

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Доп.точки доступа:
Slabko, V. V.; Слабко, Виталий Васильевич; Tsipotan, A. S. ; Ципотан, Алексей Сергеевич; Gerasimova, M. A.; Герасимова М. А.; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; International Conference on Laser Optics(16 ; 2014 ; June 30-July 04 ; St Petersburg, Russia)
}
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