Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Найдено в других БД:

Каталог книг и брошюр библиотеки ИФ СО РАН (1)

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=oxygen<.>)

Общее количество найденных документов : 60
Показаны документы с 1 по 10

1-10 11-20 21-30 31-40 41-50 51-60

    Effects of endohedral Gd-containing fullerenols with a different number of oxygen substituents on bacterial bioluminescence / E. A. Stepin, E. S. Sushko, N. G. Vnukova [et al.] // Int. J. Mol. Sci. - 2024. - Vol. 25, Is. 2. - Ст. 708, DOI 10.3390/ijms25020708. - Cited References: 102. - This research was funded by the State Assignment of the Ministry of Science and Higher Education of the Russian Federation, project No. 0287-2021-0020, and partly supported by the Russian Science Foundation No. 23-26-10018, Krasnoyarsk Regional Science Foundation . - ISSN 1661-6596. - ISSN 1422-0067
   Перевод заглавия: Влияние эндоэдральных Gd-содержащих фуллеренолов с различным числом кислородных заместителей на биолюминесценцию бактерий
Кл.слова (ненормированные):
endohedral fullerenol -- gadolinium -- bioluminescence -- bacterial bioassay -- toxicity -- enzymatic bioassay -- reactive oxygen species -- density functional tight binding method -- fourier-transform infrared spectroscopy
Аннотация: Gadolinium (Gd)-containing fullerenols are perspective agents for magnetic resonance imaging and cancer research. They combine the unique paramagnetic properties of Gd with solubility in water, low toxicity and antiradical activity of fullerenols. We compared the bioeffects of two Gd-containing fullerenols with a different number of oxygen groups—20 and 42: Gd@C82O20H14 and Gd@C82O42H32. The bioluminescent bacteria-based assay was applied to monitor the toxicity of fullerenols, bioluminescence was applied as a signal physiological parameter, and bacterial enzyme-based assay was used to evaluate the fullerenol effects on enzymatic intracellular processes. Chemiluminescence luminol assay was applied to monitor the content of reactive oxygen species (ROS) in bacterial and enzymatic media. It was shown that Gd@C82O42H32 and Gd@C82O20H14 inhibited bacterial bioluminescence at >10?1 and >10?2 gL?1, respectively, revealing a lower toxicity of Gd@C82O42H32. Low-concentration (10?3–10?1 gL?1) bacterial bioluminescence activation by Gd@C82O42H32 was observed, while this activation was not found under exposure to Gd@C82O20H14. Additional carboxyl groups in the structure of Gd@C82O42H32 were determined by infrared spectroscopy and confirmed by quantum chemical calculations. The groups were supposed to endow Gd@C82O42H32 with higher penetration ability through the cellular membrane, activation ability, lower toxicity, balancing of the ROS content in the bacterial suspensions, and lower aggregation in aqueous media.

Смотреть статью,
Scopus,
Читать в сети ИФ
Держатели документа:
Biophysics Department, School of Fundamental Biology and Biotechnology, Siberian Federal University, 660041 Krasnoyarsk, Russia
Institute of Biophysics SB RAS, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia
Institute of Physics SB RAS, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia
Department of Solid State Physics and Nanotechnology, School of Engineering Physics and Radioelectronics, Siberian Federal University, 660074 Krasnoyarsk, Russia
Department of Physical and Inorganic Chemistry, School of Non-Ferrous Metals and Materials Science, Siberian Federal University, 660025 Krasnoyarsk, Russia
Laboratory for Digital Controlled Drugs and Theranostics, FRC KSC SB RAS, 660036 Krasnoyarsk, Russia

Доп.точки доступа:
Stepin, E. A.; Sushko, E. S.; Сушко, Екатерина Сергеевна; Vnukova, N. G.; Внукова, Наталья Григорьевна; Churilov, G. N.; Чурилов, Григорий Николаевич; Rogova, A. V.; Tomilin, F. N.; Томилин, Феликс Николаевич; Kudryasheva, N. S.
}
Найти похожие

The relationship between the structural characteristics of α-Fe2O3 catalysts and their lattice oxygen reactivity regarding hydrogen / N. Kirik, A. Krylov, A. Boronin [et al.] // Materials. - 2023. - Vol. 16, Is. 12 : The 15th Anniversary of Materials — Recent Advances in Catalytic Materials. - Ст. 4466, DOI 10.3390/ma16124466. - Cited References: 63. - This work was conducted within the framework of the budget project for the Institute of Chemistry and Chemical Technology of the Siberian Branch of the Russian Academy of Sciences, Federal Research Center KSC SB RAS, No. FWES–2021–0013 . - ISSN 1996-1944
Кл.слова (ненормированные):
α-Fe2O3 -- catalysts -- calcinations -- XRD -- XPS -- Raman spectroscopy characterization -- temperature-programmed reduction
Аннотация: In this paper, the relationship between the structural features of hematite samples calcined in the interval of 800–1100 °C and their reactivity regarding hydrogen studied in the temperature-programmed reaction (TPR-H2) was studied. The oxygen reactivity of the samples decreases with the increasing calcination temperature. The study of calcined hematite samples used X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), X-ray Photoelectron Spectroscopy (XPS), and Raman spectroscopy, and their textural characteristics were studied also. According to XRD results, hematite samples calcined in the temperature range under study are monophase, represented by the α-Fe2O3 phase, in which crystal density increases with increasing calcination temperature. The Raman spectroscopy results also register only the α-Fe2O3 phase; the samples consist of large, well-crystallized particles with smaller particles on their surface, having a significantly lower degree of crystallinity, and their proportion decreases with increasing calcination temperature. XPS results show the α-Fe2O3 surface enriched with Fe2+ ions, whose proportion increases with increasing calcination temperature, which leads to an increase in the lattice oxygen binding energy and a decrease in the α-Fe2O3 reactivity regarding hydrogen.

Смотреть статью,
WOS,
Читать в сети ИФ
Держатели документа:
Federal Research Center “Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences”, Institute of Chemistry and Chemical Technology, 50/24, Akademgorodok, 660036 Krasnoyarsk, Russia
Federal Research Center “Krasnoyarsk Science Center of Siberian Branch of the Russian Academy of Sciences”, Kirensky Institute of Physics, 50/38, Akademgorodok, 660036 Krasnoyarsk, Russia
Federal Research Center Boreskov Institute of Catalysis, 5, Ac. Lavrentieva Ave., 630090 Novosibirsk, Russia
Department of Chemistry, 79, Svobodny Ave., Siberian Federal University, 660041 Krasnoyarsk, Russia

Доп.точки доступа:
Kirik, N.; Krylov, A. S.; Крылов, Александр Сергеевич; Boronin, A.; Koshcheev, S.; Solovyov, L.; Rabchevskii, E.; Shishkina, N.; Anshits, A.
}
Найти похожие

Functionalized magnetite nanoparticles: Characterization, bioeffects, and role of reactive oxygen species in unicellular and enzymatic systems / A. G. Kicheeva, E. S. Sushko, L. S. Bondarenko [et al.] // Int. J. Mol. Sci. - 2023. - Vol. 24, Is. 2. - Ст. 1133, DOI 10.3390/ijms24021133. - Cited References: 125. - This research was funded by Russian Science Foundation, N 22-73-10222 . - ISSN 1661-6596. - ISSN 1422-0067
Кл.слова (ненормированные):
magnetite nanoparticles -- surface modification -- humic acids -- organosilane -- reactive oxygen species -- toxicity -- bioluminescence assay -- bacteria -- enzymes -- oxidative stress -- prooxidant -- ferroptosis
Аннотация: The current study evaluates the role of reactive oxygen species (ROS) in bioeffects of magnetite nanoparticles (MNPs), such as bare (Fe3O4), humic acids (Fe3O4-HA), and 3-aminopropyltriethoxysilane (Fe3O4-APTES) modified MNPs. Mössbauer spectroscopy was used to identify the local surrounding for Fe atom/ions and the depth of modification for MNPs. It was found that the Fe3O4-HA MNPs contain the smallest, whereas the Fe3O4-APTES MNPs contain the largest amount of Fe2+ ions. Bioluminescent cellular and enzymatic assays were applied to monitor the toxicity and anti-(pro-)oxidant activity of MNPs. The contents of ROS were determined by a chemiluminescence luminol assay evaluating the correlations with toxicity/anti-(pro-)oxidant coefficients. Toxic effects of modified MNPs were found at higher concentrations (>10−2 g/L); they were related to ROS storage in bacterial suspensions. MNPs stimulated ROS production by the bacteria in a wide concentration range (10−15–1 g/L). Under the conditions of model oxidative stress and higher concentrations of MNPs (>10−4 g/L), the bacterial bioassay revealed prooxidant activity of all three MNP types, with corresponding decay of ROS content. Bioluminescence enzymatic assay did not show any sensitivity to MNPs, with negligible change in ROS content. The results clearly indicate that cell-membrane processes are responsible for the bioeffects and bacterial ROS generation, confirming the ferroptosis phenomenon based on iron-initiated cell-membrane lipid peroxidation.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Institute of Biophysics of Siberian Branch of Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center” of Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Physics of Siberian Branch of Russian Academy of Sciences, Federal Research Center “Krasnoyarsk Science Center” of Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Department of General Engineering, Moscow Aviation Institute, Moscow, 125993, Russian Federation
Department of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russian Federation
Sklifosovsky Research Institute for Emergency Medicine, Moscow, 129010, Russian Federation
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Chernogolovka, 142432, Russian Federation
Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, P.le Fermi, 1, Portici, 80055, Italy
Biophysics Department, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Kicheeva, A. G.; Sushko, E. S.; Сушко, Екатерина Сергеевна; Bondarenko, L. S.; Kydralieva, K. A.; Pankratov, D. A.; Tropskaya, N. S.; Dzeranov, A. A.; Dzhardimalieva, G. I.; Zarrelli, M.; Kudryasheva, N. S.
}
Найти похожие

    Применение процессного моделирования для интерпретации вариации стабильных изотопов в годичных кольцах деревьев / Н. Д. Васильева, С. Н. Софронова, В. В. Баринов [и др.] // Лесотехнич. журн. - 2023. - Т. 13, № 4, Ч. 2. - С. 23-38 ; Forest. Eng. J., DOI 10.34220/issn.2222-7962/2023.4/15. - Библиогр.: 33. - Исследование выполнено за счет гранта Российского научного фонда № 21-17-00006, (https://rscf.ru/en/project/21-17-00006/) . - ISSN 2222-7962
   Перевод заглавия: Application of process-based modelling for interpretation of stable isotope variations in tree rings
Кл.слова (ненормированные):
дендрохрогология -- стабильные изотопы -- моделирование -- углерод -- кислород -- водород -- dendrochronology -- stable isotopes -- modelling -- carbon -- oxygen -- hydrogen
Аннотация: Ширина годичных колец деревьев и изотопный состав стабильных изотопов углерода (δ13C), кислорода (δ18O) и водорода (δ2H) в целлюлозе годичных колец широко используются для реконструкций условий окружающей среды. Применение моделей, способных описать вариацию стабильных изотопов в годичных кольцах деревьев, представляет собой набор инструментов для интерпретации изменений окружающей среды на экофизиологическом уровне. В данной работе хронологии с погодичным временным разрешением, полученные по стабильным изотопам δ13С, δ18O и δ2H в целлюлозе годичных колец хвойных для региона Дельта реки Маккензи в Канаде (68° 30′ с.ш., 133° 48′ з.д.) для периода с 1901 по 2009 гг., были сопоставлены с модельными расчетами для интерпретации экофизиологического сигнала. При помощи процессной модели (LPX) нам удалось смоделировать δ13С вариацию, значимо коррелирующую с измеренными данными (r = 0.29; p = 0.002) для периода с 1901 по 2009 гг. Модельные расчеты по кислороду и водороду требуют дальнейшего преобразования модельных блоков, в частности, требуют доработки включения источника воды, используемой деревьями, блока оттаивания и промерзания почвы с учетом вечной мерзлоты, а также экспериментальных данных по содержанию δ18O и δ2H в воде.
Tree-ring width and stable isotopes (carbon, oxygen, and hydrogen) in tree-ring cellulose are widely used to reconstruct environmental conditions. The application of models capable to describe a variation of stable isotopes in annual tree rings can be a powerful tool for interpretation of environmental changes at the eco-physiological level. In this paper, we modelled carbon (δ13С), oxygen (δ18O), and hydrogen (δ2H) variations at the tree-ring level and compared results with measured data, obtained from the Mackenzie Delta River (68°30′ N, 133°48′ W) for the common period from 1901 to 2009. Using a process-based model (LPX), we were able to simulate carbon isotope values, which significantly (r = 0.29; p = 0.002) correlate with measured carbon isotope values. The model calculations for oxygen and hydrogen require further modifications and improvements, in particular the inclusion of the source of water used by the trees in the Canadian subarctic, as well as δ18O and δ2H in the water.

Смотреть статью,
РИНЦ,
Читать в сети ИФ
Держатели документа:
Сибирский Федеральный Университет, 660041, пр. Свободный, 79, Красноярск, Российская Федерация
Институт физики им. Л.В. Киренского СО РАН, Академгородок, 50, г. Красноярск, Российская Федерация, 660036
Сибирский государственный университет науки и технологий имени академика М.Ф. Решетнева, Красноярск, Красноярский рабочий 31, 660037, Российская Федерация

Доп.точки доступа:
Васильева, Наталья Дмитриевна; Vasilieva, N. D.; Софронова, Светлана Николаевна; Sofronova, S. N.; Баринов, В. В.; Тайник, А. В.; Трушкина, Т. В.; Чуракова, О. В.; РусДендро-2023, Международная дендрохронологическая конференция(5 ; сентябрь 2023г. ; Воронеж)

}
Найти похожие

Biological activity of fullerenols of various structure. The role of reactive oxygen species. Bioluminescent monitoring / E. S. Sushko, A. S. Sachkova, Н. Г. Внукова [et al.] // Biophysical reviews : 7th Congress of Biophysicists of Russia : conference proceedings. - 2023. - Vol. 15, Is. 5. - Ст. S7.437. - P. 1663DOI 10.1007/s12551-023-01150-w

Читать в сети ИФ

Публикация на русском языке Биологическая активность фуллеренолов различной структуры. Роль активных форм кислорода. Биолюминесцентный мониторинг [Текст] / Е. С. Сушко, А. С. Сачкова, Н. Г. Внукова [и др.] // VII Съезд биофизиков России : сборник научных трудов : в 2-х т. - Краснодар, 2023. - Т. 2. - С. 11

Держатели документа:
Institute of Biophysics SB RAS, FRC KSC SB RAS
Institute of Physics SB RAS, FRC KSC SB RAS
Tomsk Polytechnic University
Siberian Federal University, Krasnoyarsk
FRC KSC SB RAS, Krasnoyarsk

Доп.точки доступа:
Sushko, E. S.; Сушко, Екатерина Сергеевна; Sachkova, A. S.; Внукова, Наталья Григорьевна; Vnukova, N. G.; Чурилов, Григорий Николаевич; Churilov, G. N.; Stepin, E. A.; Kicheeva, A. G.; Kudryasheva, N. S.; Кудряшова, Надежда Степановна; Congress of Biophysicists of Russia(7 ; 2023 ; Apr. 17-23 ; Krasnodar)
}
Найти похожие

Structure of metastable Sr0.8Dy0.2Co3-δ phases and their electrical and magnetic properties / V. A. Dudnikov, S. N. Vereshchagin, L. A. Solov’ev [et al.] // J. Exp. Theor. Phys. - 2022. - Vol. 134, Is. 3. - P. 290-299, DOI 10.1134/S1063776122030037. - Cited References: 40. - Investigation was supported by the Russian Foundation for Basic Research (grant no. 19-03-00017). Thermal and X-ray diffraction studies were conducted in the framework of State Task 0287-2021-0013 for the Institute of Chemistry and Chemical Technologies, Siberian Branch, Russian Academy of Sciences . - ISSN 1063-7761
Кл.слова (ненормированные):
Cobalt alloys -- Metastable phases -- Oxygen -- Perovskite -- Temperature distribution
Аннотация: Polycrystalline Sr0.8Dy0.2Co3-δ complex cobalt oxides with a different amount of oxygen (δ = 0.26, 0.44, 0.46) have been prepared by solid-state synthesis. An increase in oxygen deficiency causes the brownmillerite phase to appear in the perovskite structure, which significantly changes its properties. At δ = 0.46, the content of the brownmillerite phase reaches 38%. A comparative analysis of the magnetic and transport properties of synthesized samples has been carried out. The asymptotic Curie temperature changes sign from positive at δ = 0.26 to negative at δ = 0.46. The magnetoresistance of the sample with δ = 0.46 is negative and exceeds 40% at T = 10 K. The temperature dependence of resistivity is characteristic of semiconductors, and the absolute values for samples at low temperatures differ almost tenfold.

Смотреть статью,
Scopus

Публикация на русском языке Структура, электрические и магнитные свойства метастабильных фаз Sr0.8Dy0.2CoO3-δ [Текст] / В. А. Дудников, С. Н. Верещагин, Л. А. Соловьев [и др.] // Журн. эксперим. и теор. физ. - 2022. - Т. 161 Вып. 3. - С. 346-357

Держатели документа:
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Institute of Chemistry and Chemical Technologies, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Dudnikov, V. A.; Дудников, Вячеслав Анатольевич; Vereshchagin, S. N.; Solov’ev, L. A.; Gavrilkin, S. Y.; Tsvetkov, A. Y.; Sitnikov, M. V.; Ситников, Максим Владиславович; Orlov, Yu. S.; Орлов, Юрий Сергеевич
}
Найти похожие

Adaptation of a bacterial bioluminescent assay to monitor bioeffects of gold nanoparticles / M. R. Yehia, T. E. Smolyarova, A. V. Shabanov [et al.] // Bioengineering. - 2022. - Vol. 9, Is. 2. - Ст. 61, DOI 10.3390/bioengineering9020061. - Cited References: 91. - This research was funded by RFBR, N18-29-19003; RFBR, Krasnoyarsk Territory and Krasnoyarsk Regional Fund of Science, N20-44-243001; and partly supported by the Program of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Fundamental Study 2020–2025 (Russian Federation) . - ISSN 2306-5354

РУБ Biotechnology & Applied Microbiology + Engineering, Biomedical

Кл.слова (ненормированные):
gold nanoparticles -- luminous marine bacteria -- bioassay -- hormesis -- tritium -- reactive oxygen species
Аннотация: Our current study aimed to adapt a bioluminescent bacteria-based bioassay to monitor the bioeffects of gold nanoparticles (AuNPs). Luminous marine bacteria Photobacterium phosphoreum and AuNPs modified with polyvinylpyrrolidone were employed; low-concentration (≤10−3 g/L) bioeffects of AuNPs were studied. Bioluminescence intensity was used as an indicator of physiological activity in bacteria. Two additional methods were used: reactive oxygen species (ROS) content was estimated with a chemiluminescent luminol method, and bacterial size was monitored using electron microscopy. The bacterial bioluminescent response to AuNPs corresponded to the “hormesis” model and involved time-dependent bioluminescence activation, as well as a pronounced increase in the number of enlarged bacteria. We found negative correlations between the time courses of bioluminescence and the ROS content in bacterial suspensions, demonstrating the relationship between bioluminescence activation and bacterial ROS consumption. The combined effects of AuNPs and a beta-emitting radionuclide, tritium, revealed suppression of bacterial bioluminescent activity (as compared to their individual effects) and a reduced percentage of enlarged bacteria. Therefore, we demonstrated that our bacteria-based bioluminescence assay is an appropriate tool to study the bioeffects of AuNPs; the bioeffects can be further classified within a unified framework for rapid bioassessment.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Siberian Fed Univ, Biophys Dept, Krasnoyarsk 660041, Russia.
RAS, Inst Phys SB, Fed Res Ctr, Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk 660036, Russia.
RAS, Inst Biophys SB, Fed Res Ctr, Krasnoyarsk Sci Ctr SB RAS, Krasnoyarsk 660036, Russia.
Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia.

Доп.точки доступа:
Yehia, M. R.; Smolyarova, T. E.; Смолярова, Татьяна Евгеньевна; Shabanov, A. V.; Шабанов, Александр Васильевич; Sushko, E. S.; Сушко, Екатерина Сергеевна; Badun, G. A.; Kudryasheva, N. S.
}
Найти похожие

Improving corrosion resistance of Cu-Al-based anodes in KF-AlF3-Al2O3 melts / S. K. Padamata, A. Yasinskiy, A. Shabanov [et al.] // Trans. Nonferrous Met. Soc. China. - 2022. - Vol. 32, Is. 1. - P. 354-363, DOI 10.1016/S1003-6326(22)65800-X. - Cited References: 24. - The work is performed as a part of the State Assignment for the Science of Siberian Federal University, Russia (No. FSRZ-2020-0013) . Use of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center "Krasnoyarsk Science Center SB RAS" is acknowledged . - ISSN 1003-6326. - ISSN 2210-3384

РУБ Metallurgy & Metallurgical Engineering
Рубрики:
NI-FE
   ALUMINUM ELECTROLYSIS
   INERT ANODES
   NICKEL FERRITE
   BEHAVIOR
Кл.слова (ненормированные):
inert anodes -- potassium cryolite -- Cu-Al alloys -- corrosion -- aluminium electrolysis -- oxygen-evolving electrodes
Аннотация: The anodic behaviour of pre-oxidised and non-oxidised Cu−Al-based anodes (Cu−10Al and Cu−9.8Al−2Mn) in KF−AlF3−Al2O3 melts was studied through galvanostatic and potentiodynamic polarization techniques. The alloy compositions were oxidised for a short-term (8 h) at 700 °C, followed by galvanostatic polarization for 1 h at 800 °C with an applied current density of 0.4 A/cm2. The potentiodynamic curves were recorded with a sweep rate of 0.01 V/s. XRD analysis was conducted on frozen melt samples collected on the surface of the anode, and SEM observation was performed on the anode after the experiment to study the phases of the scales formed on the alloys. All the anode materials had a steady potential between 2.30 and 2.50 V(vs Al/AlF3). The corrosion rates of the anodes were calculated from the data acquired through potentiodynamic polarization. It was seen that pre-oxidised anodes possess a low corrosion rate compared to those without pre-oxidation treatment.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Siberian Fed Univ, Lab Phys & Chem Met Proc & Mat, Krasnoyarsk, Russia.
Krasnoyarsk Sci Ctr SB RAS, Lab Mol Spect, Krasnoyarsk, Russia.
Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China.

Доп.точки доступа:
Padamata, Sai Krishna; Yasinskiy, Andrey; Shabanov, A. V.; Шабанов, Александр Васильевич; Bermeshev, Timofey; Yang, You-jian; Wang, Zhao-wen; Cao, Dao; Polyakov, Peter; State Assignment for the Science of Siberian Federal University, Russia [FSRZ-2020-0013]
}
Найти похожие

Ferromagnetism induced by oxygen vacancies in mullite Bi2Fe4O9 / S. S. Aplesnin, L. V. Udod, M. N. Sitnikov [et al.] // VIII Euro-Asian symposium "Trends in magnetism" (EASTMAG-2022) : Book of abstracts / program com. S. G. Ovchinnikov [et al.]. - 2022. - Vol. 1, Sect. : Low dimensional magnetism. - Ст. C.O1. - P. 327-328. - Cited References: 3 . - ISBN 978-5-94469-051-7

Материалы симпозиума, ,
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russia
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, Russia

Доп.точки доступа:
Ovchinnikov, S. G. \program com.\; Овчинников, Сергей Геннадьевич; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Udod, L. V.; Удод, Любовь Викторовна; Sitnikov, M. N.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Romanova, O. B.; Романова, Оксана Борисовна; Российская академия наук; Физико-технический институт им. Е.К. Завойского ФИЦ Казанского научного центра РАН; Казанский (Приволжский) федеральный университет; Euro-Asian Symposium "Trends in MAGnetism"(8 ; 2022 ; Aug. ; 22-26 ; Kazan); "Trends in MAGnetism", Euro-Asian Symposium(8 ; 2022 ; Aug. ; 22-26 ; Kazan)
}
Найти похожие

10.

    Enhancement of ferromagnetism and ferroelectricity by oxygen vacancies in mullite Bi2Fe4O9 in the Bi2(Sn0.7Fe0.3)2O7-x matrix / S. S. Aplesnin, L. V. Udod, M. N. Sitnikov [et al.] // J. Magn. Magn. Mater. - 2022. - Vol. 559. - Ст. 169530, DOI 10.1016/j.jmmm.2022.169530. - Cited References: 47 . - ISSN 0304-8853
   Перевод заглавия: Усиление ферромагнетизма и ферроэлектричества в муллите Bi2Fe4O9 в матрице Bi2(Sn0.7Fe0.3)2O7 c кислородными вакансиями
Кл.слова (ненормированные):
Remanent magnetization -- Remanent polarization -- Magnetic hysteresis -- Electrical hysteresis -- Impedance -- Permittivity
Аннотация: A new bismuth pyrostannate-based composite Bi2(Sn0.7Fe0.3)2O7-x/Bi2Fe4O9 (BSFO/BFO) has been obtained by the solid-state synthesis. Temperature dependences of the magnetic hysteresis and remanent magnetization and the nonlinear field dependence of the magnetization for the Bi2Fe4O9 antiferromagnet have been established. A temperature of the formation of canted sublattices in the antiferromagnet with the occurrence of a spontaneous moment in mullite has been determined. The mechanism of the electric polarization hysteresis and the temperature dependence of the remanent polarization have been established. It has been shown, that, below the Néel temperature, the dipole polarization is induced by a lone electron pair of bismuth ions. At T > TN, the migration polarization is caused by the charge carrier density at the chemical potential. A significant increase in the remanent magnetization of mullite in the bismuth pyrostannate matrix with oxygen vacancies over a value typical of polycrystalline mullite has been established. Remanent magnetization is explained in terms of ferron model.

Смотреть статью,
Scopus,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Reshetnev Siberian State University of Science and Technology, Krasnoyarsk, 660037, Russian Federation

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Udod, L. V.; Удод, Любовь Викторовна; Sitnikov, M. N.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Molokeev, M. S.; Молокеев, Максим Сергеевич; Romanova, O. B.; Романова, Оксана Борисовна; Shabanov, A. V.; Шабанов, Александр Васильевич
}
Найти похожие