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The interplay of phonon and magnetic mechanism of pairing in strongly correlated electron system of high-Tc cuprates / S. G. Ovchinnikov, E. I. Shneyder // Seventh International Conference on New Theoreties, Discoveries & Applications of Superconductors and Related Materials and Zhongguancun International Consortium of R&D of Superconductivity Technology Inaugurating Meeting : May 13-16, 2009, Beijing, China. - Ст. S1E0900

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Shneyder, E. I.; Шнейдер, Елена Игоревна; International Conference on New Theoreties, Discoveries & Applications of Superconductors and Related Materials(17 ; 2009 ; MAY ; Beijing, China); Zhongguancun International Consortium of R&D of Superconductivity Technology Inaugurating Meeting(2009 ; MAY ; Beijing, China)
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Александров, Кирилл Сергеевич.
Исследование фазовых переходов в триглицинселенате методом ЯКР / К. С. Александров, И. П. Александрова, В. С. Репета // Международная конференция по высоким давлениям и технологии

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

Доп.точки доступа:
Александрова, Инга Петровна; Aleksandrova, I. P.; Репета, В. С.; Aleksandrov, K. S.; International Conference on High Pressure Physics and Technology
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Muzalevskiy, K. V.
Calibration of UWB UAV radar for the remote measurement of reflection coefficient / K. Muzalevskiy, M. Mikhaylov, Z. Ruzicka // IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT). - 2023. - P. 105-108, DOI 10.1109/USBEREIT58508.2023.10158870. - Cited References: 16. - The investigation supported by the Russian Science Foundation and the Krasnoyarsk Regional Science Foundation, project № 22-17-20042
Кл.слова (ненормированные):
Microwave remote sensing -- ultra-wide band remote sensing -- unmanned aerial vehicle -- log-periodic dipole antenna -- reflection coefficient
Аннотация: In this work, the possibility of the remote measurement of reflection coefficient in the ultra-wide frequency range from 425 MHz to 1010 MHz from the board of unmanned aerial vehicle (UAV) using ultra-wide band (UWB) radar was investigated. With this in mind, the antenna-feeder path of UAV UWB radar is calibrated. The calibration process consisted in measuring the reflection coefficient from the brass mesh sheet at various UAV hovering heights. Printed log-periodic dipole antenna was used as transmitter-receiver antenna. As a result, the antenna return loss in an empty-room and the complex antenna response function of the antenna-feeder path of the UAV UWB radar were found. It is shown that the amplitude of the reflected wave from a brass mesh sheet can be measured with root-mean square error (RMSE), RMSE=0.017 1/m and a determination coefficient (R 2 ) of R 2 = 0.967. Therewith the UAV hovering heights measured by the pulse method and the on-board laser rangefinder correlates with each other with R2=0.999 and with RMSE=3.5cm (distance measurement error of the laser rangefinder is ±1cm, surface irregularities of the brass mesh sheet were no more than 1.5cm). Measured in the frequency range from 500 MHz to 900 MHz, the reflection coefficient from fresh lake water by UAV UWB radar with a relative error of no more than 7.5% (practically does not depend on the height of the UAV hovering, approximately from 2.2 m to 5.2 m) coincides with the calculated one by the Stogryn's formulas.

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Держатели документа:
Laboratory of Radiophysics of the Earth Remote Sensing, Kirensky Institute of Physics Federal Research Center KSC Siberian Branch Russian Academy of Science, Krasnoyarsk, The Russian Federation

Доп.точки доступа:
Mikhaylov, M. I.; Михайлов, Михаил Иванович; Ruzicka, Z.; Ружичка, Зденек; Музалевский, Константин Викторович; IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology(15-17 May 2023 ; Yekaterinburg, Russia)
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Val'kov, V. V.
Interplay of ferromagnetism and nontrivial topology in triple layers Te-Mn-Te of MnBi2Te4 / V. V. Val'kov, A. O. Zlotnikov, A. Gamov // Spin physics, Spin chemistry and Spin technology", International conference : abstracts : Kazan science week. - Kazan, 2023. - P. 210-211. - Cited References: 4. - РФН № 23-22-10021 ; Красноярский регион. фонд науки

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Держатели документа:
Kirensky Institute of Physics SB RAS

Доп.точки доступа:
Zlotnikov, A. O.; Злотников, Антон Олегович; Gamov, A.; Вальков, Валерий Владимирович; "Spin physics, spin chemistry, and spin technology", Internnational conference(2023 ; 25-30 Sept. ; Kazan, Russia); Казанский физико-технический институт им. Е. К. Завойского Казанского научного центра РАН; Казанский (Приволжский) федеральный университет; Казанский научный центр РАН
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Muzalevskiy, K. V.
UWB reflectometric method for the measuring of vegetation biometric parameters and soil moisture / K. Muzalevskiy, S. Fomin, M. Mikhaylov // IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology (USBEREIT). - 2023. - P. 166-169, DOI 10.1109/USBEREIT58508.2023.10158880. - Cited References: 17. - The investigation supported by the Russian Science Foundation and the Krasnoyarsk Regional Science Foundation, project № 22-17-20042
Кл.слова (ненормированные):
Microwave remote sensing -- unmanned aerial vehicle -- ultra-wide band remote sensing -- reflection coefficient -- biomass -- vegetation water content -- soil moisture
Аннотация: In this article, a method for the simultaneous measurement of total biomass, vegetation water content, and soil moisture is developed based on ultra-wideband (UWB) nadir observation of the reflection coefficient in the frequency range from 450 MHz to 6 GHz. The proposed method is based on a simple model of plane wave reflection from a vegetation layer with flat boundaries lying on a smooth soil surface. The model does not take into account the phenomena of wave scattering on the vegetation elements and the soil surface roughness. The dielectric constant of the vegetation canopy and soil were calculated based on Ulaby and Mironov dielectric models, respectively. The proposed method was tested using data from PORTOS-93 (INRA) experiments on measuring: total biomass (up to 3.3 kg/m2), water content (43%-89%), height (up to 1m) and volumetric content (up to 0.6-0.8%) of wheat plants, moisture (from 5% to 36%), density and clay fraction content (27%) of the soil. As a result, it was shown, the coefficient of determination (R2) and root-mean-square error (RMSE) appeared to be equal to R2=0.999 and RMSE=2.2% when comparing the original and retrieved values of volumetric soil moisture. The retrieved values of total biomass (vegetation water content) with the coefficient of determination R2=0.999 (0.998) and RMSE=16g/m2 (0.7%) coincide with the original set values. Therewith, the bands from 4 GHz to 6 GHz and from 450 MHz to 1 GHz were used to retrieve the canopy biometric parameters and soil moisture, respectively.

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Держатели документа:
Laboratory of Radiophysics of the Earth Remote Sensing, Kirensky Institute of Physics Federal Research Center KSC Siberian Branch Russian Academy of Science, Krasnoyarsk, The Russian Federation

Доп.точки доступа:
Fomin, S. V.; Фомин, Сергей Викторович; Mikhaylov, M. I.; Михайлов, Михаил Иванович; Музалевский, Константин Викторович; IEEE Ural-Siberian Conference on Biomedical Engineering, Radioelectronics and Information Technology(15-17 May 2023 ; Yekaterinburg, Russia)
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    Nuclear magnetic resonance study of ice-based composite materials reinforced with nanodisperse aluminum oxide fibers / E. V. Morozov, A. S. Voronin, S. V. Kniga, V. M. Buznik // Inorg. Mater. Appl. Res. - 2022. - Vol. 13, Is. 1. - P. 217-224, DOI 10.1134/S2075113322010270. - Cited References: 21. - This work was performed within the scope of state contract no. 0287-2021-0012 of the Institute of Chemistry and Chemical Technology (Siberian Branch, Russian Academy of Sciences) in the part of developing the MRI methods for studying composite materials; also the work was supported by the Russian Science Foundation (project no. 18-1300392) in the part of the study of the processes of water crystallization and ice melting in ice-based composite materials . - ISSN 2075-1133. - ISSN 2075-115X
Рубрики:
SELF-DIFFUSION
   WATER
Кл.слова (ненормированные):
ice composite materials -- reinforcing -- freezing -- melting -- NMR spectroscopy -- magnetic resonance imaging
Аннотация: Pulsed-field gradient NMR spectroscopy and magnetic resonance imaging methods were used to investigate water suspensions of nanosized fibers of aluminum oxide and ice composite materials based on these fibers. Introduction of the nanofibers was shown to have no noticeable structural effect in the suspensions in the Al2O3 concentration range of 1-10 wt %. High content of the filler was found to change the morphology and texture of the ice matrix in the composites remarkably: it becomes more homogeneous and acquires a higher degree of continuity; the melting front does not visualize internal melting zones or integrity defects in the composite. At the same time, addition of the nanofibers to the ice composites weakly influences the quantitative dynamics of the heat transfer, which is manifested in close values of the propagation speeds of the freezing/melting front in the samples at similar temperatures.

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Публикация на русском языке Исследование ледовых композиционных материалов, армированных нанодисперсными волокнами оксида алюминия, методами ядерного магнитного резонанса [Текст] / Е. В. Морозов, А. С. Воронин, С. В. Книга, В. М. Бузник // Материаловедение. - 2021. - № 8. - С. 9-18

Держатели документа:
Russian Acad Sci, Krasnoyarsk Sci Ctr, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
All Russian Sci Res Inst Aviat Mat, Moscow 105005, Russia.
Tomsk State Univ, Tomsk 634050, Russia.

Доп.точки доступа:
Morozov, E. V.; Морозов, Евгений Владимирович; Voronin, A. S.; Kniga, S., V; Buznik, V. M.; Institute of Chemistry and Chemical Technology (Siberian Branch, Russian Academy of Sciences) [0287-2021-0012]; Russian Science FoundationRussian Science Foundation (RSF) [18-1300392]
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Core-shell Fe3O4@C nanoparticles for magneto-mechanical destroy of Ehrlich ascites carcinoma cells / A. Е. Sokolov, O. S. Ivanova, E. S. Svetlitsky [et al.] // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - Ст. IV.o.08. - P. 189-190. - Cited References: 2 . - ISBN 987-5-8044-1716-2
Рубрики:

Аннотация: The core-shell magnetic nanoparticles, Fe3O4@C, were synthesized and surface aptamer-functionalized to use them as destroyers of living cancer Ehrlich's ascitic carcinoma cells. The morphology and features of the structural and magnetic properties of the obtained hybrid nanoparticles are studied.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS
Siberian Federal University
Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Science
Department of Applied Physics, National Pingtung University, Taiwan

Доп.точки доступа:
Sokolov, A. Е.; Соколов, Алексей Эдуардович; Ivanova, O. S.; Иванова, Оксана Станиславовна; Svetlitsky, E. S.; Lukyanenko, K. A.; Shabanov, A. V.; Шабанов, Александр Васильевич; Shestakov, N. P.; Шестаков, Николай Петрович; Chen, Y. -Z.; Ying-Zhen Chen; Tseng, Y.-T.; Yaw-Teng Tseng; Lin, C.-R.; Chun-Rong Lin; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
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Selective adsorption capacity of Fe3O4@C nanoparticles with respect to organic cationic dyes / O. S. Ivanova, I. S. Edelman, A. Е. Sokolov [et al.] // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - Ст. IV.p.14. - P. 231-232. - Cited References: 3 . - ISBN 987-5-8044-1716-2
Рубрики:

Аннотация: The Fe3O4 and core-shell Fe3O4@C magnetic nanoparticles (NPs) with an average size of 15 ± 2 nm were synthesized and characterized. Comparative study of two types of NPs revealed their different sorption capacity of cationic and anionic dyes. The leading role of electrostaticinteractions in the dyes adsorption by Fe3O4@C NPs has been revealed.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS
Department of Applied Physics, National Pingtung University

Доп.точки доступа:
Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Svetlitsky, E. S.; Светлицкий, Евгений Сергеевич; Lin, C.-R.; Chun-Rong Lin; Chen, Y. -Z.; Ying-Zhen Chen; Tseng, Y.-T.; Yaw-Teng Tseng; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
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    Competitive site occupation toward improved quantum efficiency of SrLaScO4:Eu red phosphors for warm white LEDs / Z. Y. Yang, G. C. Liu, Y. F. Zhao [et al.] // Adv. Opt. Mater. - 2022. - Vol. 10. Is. 6. - Ст. 2102373, DOI 10.1002/adom.202102373. - Cited References: 42. - This research was supported by the International Cooperation Project of National Key Research and Development Program of China (Program No. 2021YFE0105700), National Natural Science Foundation of China (Grant Nos. 51972118 and 51961145101), Guangzhou Science & Technology Project (Project No. 202007020005), the State Key Laboratory of Luminescent Materials and Devices (Grant No. Skllmd-2021-09), China Postdoctoral Science Foundation (Grant No. 2021M691053), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (Program No. 2017BT01X137). This work was also funded by RFBR according to the research Project No. 19-52-80003 and the NRF International: SA/China Joint Research Programme 2021 - CHIN2002265 06921 UID 132785 . - ISSN 2195-1071
   Перевод заглавия: Конкурентное заселение позиций для повышения квантовой эффективности красных люминофоров SrLaScO4:Eu для тепло-белых светодиодов

РУБ Materials Science, Multidisciplinary + Optics
Рубрики:
LUMINESCENCE
   EUROPIUM
   BLUE
   EU2+
   STABILIZATION
   EPR
Кл.слова (ненормированные):
light-emitting diodes -- photoluminescence -- red emission
Аннотация: The discovery of Eu2+-doped high-efficiency red phosphors remains a vital challenge for white light-emitting diode (WLED) applications. It is therefore urgent to find effective strategies managing the oxidation state to help reduce Eu3+ to Eu2+ and accordingly increase the photoluminescence quantum yield (PLQY). Herein, a new red-emitting SrLaScO4:Eu phosphor is designed, and the PLQY is enhanced from 13% to 67% under 450 nm excitation by employing (NH4)2SO4-assisted sintering. Combined structural analysis, optical spectroscopy, and theoretical calculation reveal that predominant Eu2+ prefers to occupy the Sr2+ sites in the SrLaScO4 enabling red emission, and a competitive site occupation of Eu3+ in La3+ can be restrained, and the reduction mechanism of Eu3+ to Eu2+ originating from the (NH4)2SO4 addition is analyzed. The fabricated WLED device using red-emitting SrLaScO4:Eu and yellow-emitting Y3(Al,Ga)5O12:Ce3+ exhibits a high color-rendering index of 86.7 at a low correlated color temperature of 4005 K. This work provides a feasible reduction strategy for guiding the development of high-efficiency Eu2+-doped red phosphor for WLED applications.

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Держатели документа:
South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China.
City Univ Hong Kong, Dept Chem, Kowloon, Hong Kong 999077, Peoples R China.
KSC SB RAS, Lab Crystal Phys, Kirensky Inst Phys, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.
Univ Free State, Dept Phys, POB 339, ZA-9300 Bloemfontein, South Africa.
South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Peoples R China.

Доп.точки доступа:
Yang, Zhiyu; Liu, Gaochao; Zhao, Yifei; Zhou, Yayun; Qiao, Jianwei; Molokeev, M. S.; Молокеев, Максим Сергеевич; Swart, Hendrik C.; Xia, Zhiguo; International Cooperation Project of National Key Research and Development Program of China [2021YFE0105700]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51972118, 51961145101]; Guangzhou Science & Technology Project [202007020005]; State Key Laboratory of Luminescent Materials and Devices [Skllmd-2021-09]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2021M691053]; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01X137]; RFBRRussian Foundation for Basic Research (RFBR) [19-52-80003]; NRF International: SA/China Joint Research Programme 2021 [CHIN2002265 06921 UID 132785]
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10.

    Liu, Gaochao.
    Structural rigidity control toward Cr3+-based broadband near-infrared luminescence with enhanced thermal stability / G. C. Liu, M. S. Molokeev, Z. G. Xia // Chem. Mat. - 2022. - Vol. 34, Is. 3. - P. 1376-1384, DOI 10.1021/acs.chemmater.1c04131. - Cited References: 59. - This work was supported by the International Cooperation Project of the National Key Research and Development Program of China (2021YFE0105700) , National Natural Science Foundation of China (Nos.: 51972118 and 51961145101) , Guangzhou Science & Technology Project (202007020005) , and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01X137) . This work was also funded by RFBR according to the research Project No. 19-52-80003 . - ISSN 0897-4756. - ISSN 1520-5002
   Перевод заглавия: Контроль структурной жесткости для получения широкополосной люминесценции в ближней инфракрасной области на основе Cr3+ с повышенной термической стабильностью

РУБ Chemistry, Physical + Materials Science, Multidisciplinary
Рубрики:
PHOSPHOR
   PHOTOLUMINESCENCE
   EFFICIENT
   EMISSION
   CR3+
Аннотация: Broadband near-infrared (NIR) light sources based on phosphor-converted light-emitting diodes (pc-LEDs) are desirable for biochemical analysis and medical diagnosis applications; however, the development of target NIR phosphor is still a challenge. Herein, broadband NIR phosphors, Cr3+-activated CaSc1–xAl1+xSiO6 (λem = 950 nm), are designed and optimized by chemical substitution toward enhanced quantum efficiency and thermal stability. Structural and spectral analyses along with density functional theory calculations reveal that Sc3+/Al3+ substitution contributes to enhancing the structural rigidity and the local symmetry of the [Sc/AlO6] octahedron so that the nonradiative relaxation of Cr3+ emission centers is suppressed significantly. The as-fabricated phosphor-in-glass-based NIR LED light source demonstrates great potential in the detection of alcohol concentration. This study provides a local structure design principle for exploring NIR phosphors with enhanced thermal stability and will also stimulate further studies on material discovery and quantitative analysis of NIR spectroscopy.

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Держатели документа:
South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Far Eastern State Transport Univ, Dept Phys, Khabarovsk 680021, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.
South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510641, Peoples R China.

Доп.точки доступа:
Molokeev, M. S.; Молокеев, Максим Сергеевич; Xia, Zhiguo; International Cooperation Project of the National Key Research and Development Program of China [2021YFE0105700]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [51972118, 51961145101]; Guangzhou Science & Technology Project [202007020005]; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01X137]; RFBRRussian Foundation for Basic Research (RFBR) [19-52-80003]
}
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11.

    Giant red-shifted emission in (Sr,Ba)Y2O4:Eu2+ phosphor toward broadband near-infrared luminescence / Z. Y. Yang, Y. F. Zhao, Y. Y. Zhou [et al.] // Adv. Funct. Mater. - 2022. - Vol. 32, Is. 1. - Ст. 2103927, DOI 10.1002/adfm.202103927. - Cited References: 60. - This research was supported by the International Cooperation Project of National Key Research and Development Program of China (2021YFE0105700), National Natural Science Foundations of China (Grant No. 51972118 and 51961145101), Guangzhou Science & Technology Project (202007020005), and the Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program (2017BT01X137). This work is also funded by RFBR according to the research project No. 19-52-80003 . - ISSN 1616-301X. - ISSN 1616-3028
   Перевод заглавия: Излучение с гигантским красным смещением в люминофоре (Sr,Ba)Y2O4: Eu2 + для широкополосной люминесценции в ближней инфракрасной области

РУБ Chemistry, Multidisciplinary + Chemistry, Physical + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied + Physics, Condensed Matter
Рубрики:
LIGHT-SOURCES
   PHOTOLUMINESCENCE
   TRANSITION
   CE3+
   BLUE
   SUBSTITUTION
Кл.слова (ненормированные):
near-infrared emission -- photoluminescence -- red emission
Аннотация: Near-infrared (NIR) light-emitting diodes (LEDs) light sources are desirable in photonic, optoelectronic, and biological applications. However, developing broadband red and NIR-emitting phosphors with good thermal stability is always a challenge. Herein, the synthesis of Eu2+-activated SrY2O4 red phosphor with high photoluminescence quantum efficiency and broad emission band ranging from 540 to 770 nm and peaking at 620 nm under 450 nm excitation is designed. Sr/Ba substitution in SrY2O4:Eu2+ has been further utilized to achieve tunable emission by modifying the local environment, which facilitates the giant red-shifted emission from 620 to 773 nm while maintaining the outstanding thermal stability of SrY2O4:Eu2+. The NIR emission is attributed to the enhanced Stokes shift and crystal field strength originated from the local structural distortions of [Y1/Eu1O6] and [Y2/Eu2O6]. The investigation in charge distribution around Y/Eu provides additional insight into increasing covalency to tune the emission toward the NIR region. As-fabricated NIR phosphor-converted LEDs demonstration shows its potential in night-vision technologies. This study reveals the NIR luminescence mechanism of Eu2+ in oxide-based hosts and provides a design principle for exploiting Eu2+-doped NIR phosphors with good thermal stability.

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Держатели документа:
South China Univ Technol, Guangdong Prov Key Lab Fiber Laser Mat & Appl Tec, State Key Lab Luminescent Mat & Devices, Sch Mat Sci & Engn, Guangzhou 510641, Peoples R China.
Natl Synchrotron Radiat Res Ctr, Mat Sci Grp, Sci Res Div, Hsinchu 300, Taiwan.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Lab Crystal Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Dept Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
Kemerovo State Univ, Res & Dev Dept, Kemerovo 650000, Russia.

Доп.точки доступа:
Yang, Zhiyu; Zhao, Yifei; Zhou, Yayun; Qiao, Jianwei; Chuang, Yu-Chun; Molokeev, M. S.; Молокеев, Максим Сергеевич; Xia, Zhiguo; International Cooperation Project of National Key Research and Development Program of China [2021YFE0105700]; National Natural Science Foundations of ChinaNational Natural Science Foundation of China (NSFC) [51972118, 51961145101]; Guangzhou Science & Technology Project [202007020005]; Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01X137]; RFBRRussian Foundation for Basic Research (RFBR) [19-52-80003]
}
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12.

    Carbon double coated Fe3O4@C@C nanoparticles: Morphology features, magnetic properties, dye adsorption / C. R. Lin, O. S. Ivanova, I. S. Edelman [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 3. - Ст. 376, DOI 10.3390/nano12030376. - Cited References: 44. - The work was supported financially by the Russian Foundation for Basic Research, Grant No. 19-52-52002 and Ministry of Science and Technology of Taiwan, Grants MOST No. 108-2923-M-153-001-MY3 and No. 109-2112-M-153-003-. The support was obtained also from the Joint Scientific Center of the Siberian Federal University supported by the State assignment (#FSRZ-2020-0011) of the Ministry of Science and Higher Education of the Russian Federation, where the Transmission Electron Microscopy studies were carried out . - ISSN 2079-4991
   Перевод заглавия: Наночастицы Fe3O4@C@C с двойным углеродным покрытием: Морфологические особенности, магнитные свойства, адсорбция красителей

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
SOLID-PHASE EXTRACTION
FE3O4 NANOPARTICLES
PROFILE REFINEMENT
Кл.слова (ненормированные):
core-shell Fe3O4@C nanoparticles -- core-shell Fe3O4@C@C nanoparticles -- magnetic properties -- dyes adsorption
Аннотация: This work is devoted to the study of magnetic Fe3O4 nanoparticles doubly coated with carbon. First, Fe3O4@C nanoparticles were synthesized by thermal decomposition. Then these synthesized nanoparticles, 20–30 nm in size were processed in a solution of glucose at 200 °C during 12 h, which led to an unexpected phenomenon – the nanoparticles self-assembled into large conglomerates of a regular shape of about 300 nm in size. The morphology and features of the magnetic properties of the obtained hybrid nanoparticles were characterized by transmission electron microscopy, differential thermo-gravimetric analysis, vibrating sample magnetometer, magnetic circular dichroism and Mössbauer spectroscopy. It was shown that the magnetic core of Fe3O4@C nanoparticles was nano-crystalline, corresponding to the Fe3O4 phase. The Fe3O4@C@C nanoparticles presumably contain Fe3O4 phase (80%) with admixture of maghemite (20%), the thickness of the carbon shell in the first case was of about 2–4 nm. The formation of very large nanoparticle conglomerates with a linear size up to 300 nm and of the same regular shape is a remarkable peculiarity of the Fe3O4@C@C nanoparticles. Adsorption of organic dyes from water by the studied nanoparticles was also studied. The best candidates for the removal of dyes were Fe3O4@C@C nanoparticles. The kinetic data showed that the adsorption processes were associated with the pseudo-second order mechanism for cationic dye methylene blue (MB) and anionic dye Congo red (CR). The equilibrium data were more consistent with the Langmuir isotherm and were perfectly described by the Langmuir–Freundlich model.

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Держатели документа:
Natl Pingtung Univ, Dept Appl Phys, Pingtung City 90003, Taiwan.
RAS, FRC KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Engn Phys & Radioelect, Krasnoyarsk 660041, Russia.
RAS, FRC KSC SB, Inst Chem & Chem Technol, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lin, Chun-Rong; Ivanova, O. S.; Иванова, Оксана Станиславовна; Edelman, I. S.; Эдельман, Ирина Самсоновна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Zharkov, S. M.; Жарков, Сергей Михайлович; Petrov, D. A.; Петров, Дмитрий Анатольевич; Sokolov, A. Е.; Соколов, Алексей Эдуардович; Svetlitsky, E. S.; Светлицкий, Евгений Сергеевич; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Solovyov, Leonid A.; Chen, Ying-Zhen; Tseng, Yaw-Teng; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [19-52-52002]; Ministry of Science and Technology of TaiwanMinistry of Science and Technology, Taiwan [108-2923-M-153-001-MY3, 109-2112-M-153-003]; Joint Scientific Center of the Siberian Federal University [FSRZ-2020-0011]; Ministry of Science and Higher Education of the Russian Federation
}
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13.

Metal-dielectric polarization-preserving anisotropic mirror for chiral optical Tamm state / N. V. Rudakova, R. G. Bikbaev, P. S. Pankin [et al.] // Nanomaterials. - 2022. - Vol. 12, Is. 2. - Ст. 234, DOI 10.3390/nano12020234. - Cited References: 46. - The reported study was funded by RFBR and MOST according to the research project No. 19-52-52006. This work was also supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University and Ministry of Education and the Ministry of Science and Technology (MOST) No. 108-2923-E-009-003-MY3 . - ISSN 2079-4991

РУБ Chemistry, Multidisciplinary + Nanoscience & Nanotechnology + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
PLASMON
   MODES
   PHASE
   ABSORPTION
   RESONANCE
Кл.слова (ненормированные):
chiral optical Tamm state -- polarization-preserving anisotropic mirror -- Q-factor -- coupled mode theory
Аннотация: This numerical study demonstrates the possibility of exciting a chiral optical Tamm state localized at the interface between a cholesteric liquid crystal and a polarization-preserving anisotropic mirror conjugated to a metasurface. The difference of the proposed structure from a fully dielectric one is that the metasurface makes it possible to decrease the number of layers of a polarization-preserving anisotropic mirror by a factor of more than two at the retained Q-factor of the localized state. It is shown that the proposed structure can be used in a vertically emitting laser.

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Держатели документа:
RAS, Fed Res Ctr KSC, Kirensky Inst Phys, SB, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Natl Yang Ming Chiao Tung Univ, Inst Imaging & Biomed Photon, Coll Photon, 301 Sec 2,Gaofa 3rd Rd, Tainan 711010, Taiwan.

Доп.точки доступа:
Rudakova, N. V.; Рудакова, Наталья Викторовна; Bikbaev, R. G.; Бикбаев, Рашид Гельмединович; Pankin, P. S.; Панкин, Павел Сергеевич; Vetrov, S. Ya.; Ветров, Степан Яковлевич; Timofeev, I. V.; Тимофеев, Иван Владимирович; Chen, Kuo-Ping; Lee, Wei; RFBRRussian Foundation for Basic Research (RFBR); MOST [19-52-52006]; Higher Education Sprout Project of the National Yang Ming Chiao Tung University; Ministry of Science and Technology (MOST)Ministry of Science and Technology, China [108-2923-E-009-003-MY3]
}
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14.

Design for a self-packaged aLl-PCB wideband filter with good stopband performance / B. A. Belyaev, A. M. Serzhantov, Y. F. Balva [et al.] // IEEE Trans. Compon. Packag. Manufact. Tech. - 2022. - Vol. 12, Is. 7. - P. 1186-1195, DOI 10.1109/TCPMT.2022.3183581. - Cited References: 34. - This work was supported by the Ministry of Science and Higher Education of the Russian Federation, state assignment no. FEFE-2020-0013 . - ISSN 2156-3950
Кл.слова (ненормированные):
wideband filter -- printed circuit board technology -- wide stopband -- bandpass filter
Аннотация: A new design of a self-packaged all-PCB wideband filter based on the cascade connection of high-pass and low-pass filters is presented. The novel low-pass and high-pass quasi-lumped filter structure differs from the known ones by the existence of cross-coupling between elements producing transmission zeroes at the desired frequency. It is shown that high order structures make it possible to design a wideband filter having the number of transmission zeros in the low-frequency stopband equal to the order of the applied high-pass filter and the number of transmission zeros in the high-frequency stopband equal to half the order of the low-pass filter. An implementation of two-layer metallization of the capacitor plates made it possible to manufacture all three types of filters using the common technology of multilayer printed circuit boards with a good coincidence of the characteristics of the model and the fabricated filters. The filter fabricated using materials with a rather low-quality factor (F4BM/RO4450B/RO4003C) has demonstrated a good performance: the central frequency is 0.99 GHz, the 1 dB fractional bandwidth is 152%, the minimum in-band loss is 0.3 dB, the selectivity (Δf30dB/Δf3dB) is 1.21, and the 40-dB stopband width is 6.16f0.

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Держатели документа:
Siberian Federal University, Russia
Kirensky Institute of Physics, Russia
Reshetnev Siberian State University, Russia

Доп.точки доступа:
Belyaev, B. A.; Serzhantov, A. M.; Balva, Y. F.; Бальва, Ярослав Федорович; Galeev, R. G.; Leksikov, An. A.; Лексиков, Андрей Александрович; IEEE/MTT-S International Microwave Symposium 2021(7-10 June 2021 ; Atlanta)
}
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15.

    Microstrip frequency doublers based on a thin magnetic film / I. V. Govorun, P. N. Solovev, N. M. Boev [et al.] // Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology, USBEREIT 2022 : Proceedings : IEEE, 2022. - P. 126-130, DOI 10.1109/USBEREIT56278.2022.9923409. - Cited References: 11. - This work is supported by the Russian Science Foundation under grant 19-72-10047
   Перевод заглавия: Микрополосковые умножители частоты на основе тонких магнитных пленок
Кл.слова (ненормированные):
ferromagnetic resonance -- frequency doubling -- microstrip resonator -- thin magnetic film -- second harmonic
Аннотация: The article presents the results of measuring the generation of the second harmonic in a microstrip transmission line and in a quarter-wavelength stepped-impedance microstrip resonator with a thin permalloy magnetic film (Ni80Fe20 ). The measurements were carried out for three samples with different thicknesses – 50 nm, 75 nm and 100 nm, at an input signal excitation frequency of 1 GHz and maximum input power of ~3500 mW. It was shown that the level of the second harmonic rises as the TMF thickness increases. It was found that a 100-nm sample generates the second harmonic more efficiently due to the larger ΔH FMR and the larger amount of magnetic material involved in the process of nonlinear conversion of the input power. It was shown that the resonator-based frequency doubler has a conversion factor ~4500 times higher than that of the doubler based on the microstrip line due to the higher value of the loaded Q-factor. Therefore, a quarter-wavelength stepped-impedance microstrip resonator can be used as a frequency doubler.

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Держатели документа:
Kirensky Institute of Physics, Laboratory of Scientific Instrumentation, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Laboratory of Electrodynamics and Microwave Electronics, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Govorun, I. V.; Говорун, Илья Валерьевич; Solovev, P. N.; Соловьев, Платон Николаевич; Boev, N. M.; Боев, Никита Михайлович; Afonin, A. O.; Афонин, Алексей Олегович; Ugryumov, A. V.; Угрюмов, Андрей Витальевич; Skomorokhov, G. V.; Скоморохов, Георгий Витальевич; Ural Symposium on Biomedical Engineering, Radioelectronics and Information Technology(2022 ; 19-21 Sept. ; Yekaterinburg, Russian Federation)
}
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16.

Magnetic properties and MCD spectroscopy of CoxZn1-xFe2O4 nanoparticles synthesized with a citrate precursor method / D. A. Petrov, A. Thakur, P. Thakur [et al.] // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - Ст. III.р.11. - P. 160-161. - Cited References: 5 . - ISBN 987-5-8044-1716-2

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS
Amity University Haryana, Gurugram, Haryana 122413, India
Siberian Federal University

Доп.точки доступа:
Petrov, D. A.; Петров, Дмитрий Анатольевич; Thakur, A.; Thakur, P.; Zharkov, S. M.; Жарков, Сергей Михайлович; Sukhachev, A. L.; Сухачев, Александр Леонидович; Edelman, I. S.; Эдельман, Ирина Самсоновна; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
}
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17.

Yakovlev, I. A.
Epitaxial growth of Mn5Ge3 on Si(111) / I. A. Yakovlev, I. A. Tarasov // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - P. 74-75. - Cited References: 9 . - ISBN 987-5-8044-1716-2
Аннотация: The structure of Mn5Ge3 films deposited with and without different buffer layers on Si(111)7Ч7 substrates at a temperature of 390 °C are investigated by reflection high energy electron diffraction. It is shown that the 200 nm single-crystal germanide film is formed using two buffer layers with a slight manganese deficiency in the structure. But when deposition is without buffer layers, the thickness of a single-crystal film does not exceed 15 nm.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS

Доп.точки доступа:
Tarasov, I. A.; Тарасов, Иван Анатольевич; Яковлев, Иван Александрович; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
}
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18.

    Electron spectroscopy for in-situ analysis of MAX-phases / T. A. Andryushchenko, S. A. Lyashchenko, I. A. Tarasov, S. N. Varnakov // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - Ст. IV.p.01. - P. 209. - Cited References: 5. - The research was supported by the government of the Russian Federation (agreement No. 075-15-2019-1886) and the Russian Science Foundation (grant #21-12-00226) . - ISBN 987-5-8044-1716-2
   Перевод заглавия: Электронная спектроскопия для in-situ анализа МАХ-фаз
Аннотация: Electron spectroscopy methods allow performing in-situ analysis of the elemental composition of MAX-phase thin films. Auger electron spectroscopy makes it possible to determine the chemical bonds formed during the synthesis. This paper describes the results of using Auger electron spectroscopy for in-situ analysis of Mn2GeC and Cr2GeC.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS
Reshetnev Siberian State University of Science and Technology

Доп.точки доступа:
Andryushchenko, T. A.; Lyashchenko, S. A.; Лященко, Сергей Александрович; Tarasov, I. A.; Тарасов, Иван Анатольевич; Varnakov, S. N.; Варнаков, Сергей Николаевич; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
}
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19.

    Features of magnetic and magneto-optical properties of lanthanum manganite microparticles / R. D. Ivantsov, M. M. Mikhailov, I. S. Edelman, G. Yu. Yurkin // The Sixth Asian school-conference on physics and technology of nanostructured materials : Proceedings. - VLadivostok, 2022. - Ст. III.o.06. - P. 128. - Cited References: 1 . - ISBN 987-5-8044-1716-2
   Перевод заглавия: Особенности магнитных и магнитооптических свойств микрочастиц манганита лантана
Аннотация: For La1-xSrxMnO3 powders prepared by the solid-phase reaction method using various thermal regimes and x values, the temperature dependences of magnetization, circular magnetic dichroism (MCD), and diffuse reflectance spectra were studied. The powders synthesis at temperatures of 800–900 °C for 2 h leads to the formation of a multiphase state. The higher temperatures and duration of synthesis lead to the formation of two predominant magnetic phases with the Curie temperature (TC) of about 250 and 360 K. Correlation is established between magnetic states of the powder and the shape of the diffuse reflection spectra. The strong red shift of the MCD spectrum for the La1-xSrxMnO3 powder is revealed comparing to the MCD spectra of La1-xSrxMnO3 films available in literature.

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Держатели документа:
Kirensky Institute of Physics, FRC KSC SB RAS
Tomsk State University of Control System & Radioelectronics
Siberian Federal University

Доп.точки доступа:
Ivantsov, R. D.; Иванцов, Руслан Дмитриевич; Mikhailov, M. M.; Edelman, I. S.; Эдельман, Ирина Самсоновна; Yurkin, G. Yu.; Юркин, Глеб Юрьевич; Asian School-Conference on Physics and Technology of Nanostructured Materials(6 ; 2022 ; Apr. 25-29 ; Vladivostok); Азиатская школа-конференция по физике и технологии наноструктурированных материалов(6 ; 2022 ; 25-29 апр. ; Владивосток)
}
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20.

Ferrihydrite nanoparticles produced by Klebsiella oxytoca: Structure and properties dependence on the cultivation time / S. V. Stolyar, O. A. Bayukov, D. A. Balaev [et al.] // Adv. Powder Technol. - 2022. - Vol. 33, Is. 8. - Ст. 103692, DOI 10.1016/j.apt.2022.103692. - Cited References: 59. - This work was supported by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research projects No. 20-416-242907 . - ISSN 0921-8831
Кл.слова (ненормированные):
Ferrihydrite nanoparticles -- Structure -- Microbial synthesis -- Mössbauer spectroscopy -- Small-angle X-ray scattering
Аннотация: Ferrihydrite nanoparticles were synthesized using Klebsiella oxytoca microorganisms under various cultivation conditions. The cultivation of bacteria was carried out under various lighting conditions, and the duration of cultivation varied from 3 to 56 days. Biogenic ferrihydrite nanoparticles were studied by Mössbauer spectroscopy, magnetometry, and small-angle X-ray scattering. The process of formation of ferrihydrite nanoparticles and the states arising during the cultivation of microorganisms have been investigated. The results of Mössbauer spectroscopy showed that, depending on the time of cultivation, three different states of ferrihydrite can be realized. States differ both in the ratio of defective and non-defective positions, and the size of the particle. Experimental results indicate that ferrihydrite nanoparticles are a system of variable composition and pass through several structural (or morphological) states during the cultivation of microorganisms. A model of the structure of ferrihydrite nanoparticles is proposed, which consists in the presence of an antiferromagnetic dense core with a high Néel temperature and a friable shell with a significantly lower temperature of magnetic ordering.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Joint Institute for Nuclear Research, Dubna, Russian Federation

Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович; Bayukov, O. A.; Баюков, Олег Артемьевич; Balaev, D. A.; Балаев, Дмитрий Александрович; Ladygina, V. P.; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Balasoiu, M.; Kolenchukova, O. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович
}
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