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

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>K=YBCO<.>)

Общее количество найденных документов : 27
Показаны документы с 1 по 20

Gokhfeld, D. M.
Magnetic flux trapping in porous high-Tc superconductors / D. Gokhfeld // Phys. C: Supercond. Appl. - 2024. - Vol. 619. - Ст. 1354486, DOI 10.1016/j.physc.2024.1354486. - Cited References: 39 . - ISSN 0921-4534. - ISSN 1873-2143
Кл.слова (ненормированные):
Trapped magnetic field -- Pinning -- Critical current -- Magnetization -- YBCO -- REBCO -- Porosity -- Surface barrier
Аннотация: Porosity affects the properties of high-Tc superconductors and can improve their performance by enhancing oxygenation, cryocooling, etc. Among other factors, the presence of pores plays a significant role in the process of magnetic flux trapping. Relationships with the porosity manifest in the irreversibility field, the full penetration field, and the remnant magnetization of the samples. To account for the effect of porosity on the trapped magnetic flux into type-II superconductors, a simple toy model is suggested. Generally, as the porosity increases, the trapped flux and related parameters tend to diminish. However, in the case of microscopic samples, porosity can enhance magnetic flux trapping.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russia

Доп.точки доступа:
Гохфельд, Денис Михайлович
}
Найти похожие

Gokhfeld, D. M.
Surface barrier of holes drilled in a type-II superconductor / D. M. Gokhfeld // J. Supercond. Nov. Magn. - 2023. - Vol. 36, Is. 6. - P. 1481-1484, DOI 10.1007/s10948-023-06599-0. - Cited References: 21 . - ISSN 1557-1939. - ISSN 1557-1947
Кл.слова (ненормированные):
YBCO -- Critical state model -- Kim dependence -- Clem model -- Pinning -- Trapped magnetic flux -- Perforation
Аннотация: Holes drilled in a type-II superconductor trap the magnetic flux. Following Clem’s flux pinning model, we consider surface pinning as a mechanism for compressing the magnetic flux in the holes. Estimations of the trapped magnetic flux demonstrate that the holes with the diameter up to 2 mm are advantageous for bulk single-crystal REBCO samples. The REBCO films and tapes can be improved by the holes with diameter smaller than 10 μm.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Siberian Branch, Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Russian Academy of Sciences, Krasnoyarsk, 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia

Доп.точки доступа:
Гохфельд, Денис Михайлович
}
Найти похожие

Flux pinning docking interfaces in satellites using superconducting foams as trapped field magnets / M. R. Koblischka, A. Koblischka-Veneva, D. Gokhfeld [et al.] // IEEE Trans. Appl. Supercond. - 2022. - Vol. 32, Is. 4. - Ст. 4900105, DOI 10.1109/TASC.2022.3147734. - Cited References: 44. - This work was supported in part by SUPERFOAM international project funded by ANR and DFG under Grants ANR-17-CE05-0030 and DFG-ANR Ko2323-10. . - ISSN 1051-8223. - ISSN 1558-2515

РУБ Engineering, Electrical & Electronic + Physics, Applied
Рубрики:
BULK
RECONFIGURATION
MAGNETIZATION
Кл.слова (ненормированные):
Superconducting magnets -- Satellites -- Yttrium barium copper oxide -- Magnetomechanical effects -- Magnetic fields -- Superconducting coils -- Magnetometers -- Flux-pinning docking interface -- Foams -- Trapped field magnets -- YBCO
Аннотация: Flux-Pinning Docking Interfaces (FPDI) in satellite systems were developed using bulk superconductors and permanent magnets in previous works. However, such FPDIs have limited magnetic field strength, consist of heavy-weight material, and can only be used with a single purpose, i.e., as chasing or docking satellite. Replacing the magnetic material in the FPDI by a trapped field (TF)-magnet would enable the interface to operate for both purposes, i.e., generating a (stronger) magnetic field and trapping it. We show the requirements for such a system and discuss the possible gains when using a TF-FPDI in satellites. To reduce the system weight, the use of superconducting foams as superconducting material is discussed in detail. Furthermore, the use of superconducting foams, the size of which can be easily upscaled, may also comprise the function of the damping material, so even more weight could be saved for the payload.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Saarland Univ, Dept Expt Phys, D-66041 Saarbrucken, Germany.
Shibaura Inst Technol, Tokyo 1358548, Japan.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Tokyo Univ Sci, Dept Phys, Tokyo 1628601, Japan.
Univ Lorraine, GREEN, F-54000 Nancy, France.

Доп.точки доступа:
Koblischka, Michael R.; Koblischka-Veneva, Anjela; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Naik, S. Pavan Kumar; Nouailhetas, Quentin; Berger, Kevin; Douine, Bruno; ANRFrench National Research Agency (ANR); DFGGerman Research Foundation (DFG)European Commission [ANR-17-CE05-0030, DFG-ANR Ko2323-10]
}
Найти похожие

Microstructural parameters for modelling of superconducting foams / M. R. Koblischka, A. Koblischka-Veneva, Q. Nouailhetas [et al.] // Materials. - 2022. - Vol. 15, Is. 6. - Ст. 2303, DOI 10.3390/ma15062303. - Cited References: 62 . - ISSN 1996-1944
Кл.слова (ненормированные):
superconducting foams -- YBCO -- microstructure -- modelling parameters -- foam cells -- current flow
Аннотация: Superconducting YBa2Cu3Oy (YBCO) foams were prepared using commercial open-cell, polyurethane foams as starting material to form ceramic Y2 BaCuO5 foams which are then converted into superconducting YBCO by using the infiltration growth process. For modelling the supercon-ducting and mechanical properties of the foam samples, a Kelvin-type cell may be employed as a first approach as reported in the literature for pure polyurethane foams. The results of a first modelling attempt in this direction are presented concerning an estimation of the possible trapped fields (TFs) and are compared to experimental results at 77 K. This simple modelling revealed already useful information concerning the best suited foam structure to realize large TF values, but it also became obvious that for various other parameters like magnetostriction, mechanical strength, percolative current flow and the details of the TF distribution, a refined model of a superconducting foam sample incorporating the real sample structure must be considered. Thus, a proper description of the specific microstructure of the superconducting YBCO foams is required. To obtain a set of reliable data, YBCO foam samples were investigated using optical microscopy, scanning electron microscopy and electron backscatter diffraction (EBSD). A variety of parameters including the size and shape of the cells and windows, the length and shape of the foam struts or ligaments and the respective intersection angles were determined to better describe the real foam structure. The investigation of the foam microstructures revealed not only the differences to the original polymer foams used as base material, but also provided further insights to the infiltration growth process via the large amount of internal surface in a foam sample.

Смотреть статью,
Scopus,
Читать в сети ИФ
Держатели документа:
Experimental Physics, Saarland University, P.O. Box 151150, Saarbrucken, D-66041, Germany
GREEN, Universite de Lorraine, Nancy, F-54000, France
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Koblischka, M. R.; Koblischka-Veneva, A.; Nouailhetas, Q.; Hajiri, G.; Berger, K.; Douine, B.; Gokhfeld, D. M.; Гохфельд, Денис Михайлович
}
Найти похожие

Magnetic ion substitution and peak effect in YBCO: the strange case of Y1–xGd xBa2Cu3O7–δ / D. M. Gokhfeld, S. V. Semenov, I. V. Nemtsev [et al.] // J. Supercond. Novel Magn. - 2022. - Vol. 35, Is. 10. - P. 2679-2687, DOI 10.1007/s10948-022-06317-2. - Cited References: 50. - This work was supported by the Russian Foundation for Basic Research and the Government of the Krasnoyarsk Territory, Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, project “Superconducting properties of YBCO incorporated by paramagnetic rare-earth elements” No. 20-42-240008 . - ISSN 1557-1939
Кл.слова (ненормированные):
Peak effect -- Bulk superconductors -- Critical current -- Pinning -- X-ray diffraction -- YBCO -- Doping -- Paramagnetic magnetization
Аннотация: We present the results of a study of the superconducting and paramagnetic properties of polycrystalline Y1–xGdxBa2Cu3O7–δ samples. The critical current density and critical temperature of YBCO were weakly decreased by the Gd doping. A peak effect, which is a nonmonotonic dependence of the critical current density on magnetic field, was detected for all samples. The peak position shifted to higher magnetic fields with increasing Gd content. This behavior is opposite to the shift of the peak effect observed for other YBCO compounds doped by magnetic ions. This unusual behavior is apparently related to the realized granular structure instead of the type of doping ion. A correlation between the peak position and the granule size was found in the investigated samples and other polycrystalline YBCO compounds.

Смотреть статью,
Scopus,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Semenov, S. V.; Семёнов, Сергей Васильевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Yakimov, I. S.; Balaev, D. A.; Балаев, Дмитрий Александрович
}
Найти похожие

Balaev, D. A.
New evidence of interaction between grain and boundaries subsystems in granular high-temperature superconductors / D. A. Balaev, S. V. Semenov, D. M. Gokhfeld // J. Supercond. Novel Magn. - 2021. - Vol. 34. Is. 4. - P. 1067-1075, DOI 10.1007/s10948-021-05812-2. - Cited References: 62 . - ISSN 1557-1939
Кл.слова (ненормированные):
Magnetoresistance -- Hysteresis -- YBCO -- Magnetic flux compression -- Effective field -- Intergrain medium
Аннотация: Granular high-temperature superconductors (HTSs) exhibit magnetotransport properties, including the clockwise magnetoresistance hysteresis. The hysteresis is explained by the concept of an effective field in the subsystem of grain boundaries, where the observed dissipation occurs. The effective field in the intergrain medium is determined by a superposition of the external field H and the field induced by the magnetic response of HTS grains. The magnetic flux compression in the intergrain medium provides an increase of the effective field. The magnetoresistance hysteresis of polycrystalline YBa2Cu3O7-δ has a bright feature: In a fairly wide external field range, the hysteresis width ΔH(H) is found to be almost linear, ΔH ≈ H. This behavior is considered to be universal over the entire temperature range corresponding to the superconducting state (the investigations have been carried out at temperatures of 77 K and 4.2 K). The analysis of the magnetoresistive and magnetic properties has shown that the upper boundary of the field range of the ΔH ≈ H regime is consistent with the field of complete penetration into HTS grains. This is indicative of the strong interrelation between the magnetotransport and magnetic properties of granular HTSs.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Semenov, S. V.; Семёнов, Сергей Васильевич; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Балаев, Дмитрий Александрович
}
Найти похожие

Investigation of microstructural features, phase composition, and magnetic characteristics of YBCO-based composites and additives of CuO non-superconducting component prepared in low-pressure arc discharge plasma / I. V. Karpov, A. V. Ushakov, A. A. Lepeshev [et al.] // Inorg. Mater.: Appl. Res. - 2021. - Vol. 12, Is. 1. - P. 142-146, DOI 10.1134/S2075113321010172. - Cited References: 12. - This work was supported by the Russian Science Foundation (project no. 16-19-10054) . - ISSN 2075-1133
Кл.слова (ненормированные):
low-pressure arc discharge plasma -- CuO nanopowder -- pinning centers -- high-temperature superconductor
Аннотация: A method making it possible to form HTS ceramics of non-superconducting coating consisting of self-organizing CuO crystals, whose sizes are less than the coherence length, i.e., within several tens of nanometers, has been developed. It has been shown that the combination of self-organizing structures in the form of whiskers and nanoparticles which arise as a result of combined sintering of YBa2Cu3O(7–x) powders and electric arc CuO nanopowders results in a significant increase in the current density and appearance of peak effect at high magnetic fields. Very high current density arises from the complex vortex pinning, where whisker defects provide high pinning energy and nanoparticles suppress flux creep. The morphology of such structures can be controlled by a simple change in the concentration of nanodisperse additives. It has been shown that 20 wt % of CuO additive is optimal.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ

Публикация на русском языке Исследование микроструктурных особенностей, фазового состава и магнитных свойств композитов на основе YBCO и добавок несверхпроводящего компонента СuО, полученного в плазме дугового разряда низкого давления [Текст] / И. В. Карпов, А. В. Ушаков, А. А. Лепешев [и др.] // Материаловедение. - 2020. - № 6. - С. 27-32

Держатели документа:
Federal Research Center, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Subdivision of Federal Research Center, Krasnoyarsk Research Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Karpov, I. V.; Ushakov, A. V.; Lepeshev, A. A.; Demin, V. G.; Fedorov, L. Y.; Goncharova, E. A.; Zeer, G. M.; Zharkov, S. M.; Жарков, Сергей Михайлович; Akbaryan, A. K.
}
Найти похожие

Interplay of magnetic and superconducting subsystems in Ho-doped YBCO / D. M. Gokhfeld, S. V. Semenov, K. Y. Terentyev [et al.] // J. Supercond. Nov. Magn. - 2021. - Vol. 34. Is. 10. - P. 2537-2543, DOI 10.1007/s10948-021-05954-3. - Cited References: 26. - This work was supported by the Russian Foundation for Basic Research and the Government of the Krasnoyarsk Territory, Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, project "Superconducting properties of YBCO incorporated by paramagnetic rare-earth elements" No. 20-42-240008 . - ISSN 1557-1939. - ISSN 1557-1947

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
TEMPERATURE
   TRANSPORT
   PEAK
   DY
   SUSCEPTIBILITY
   TRANSITION
   BEHAVIOR
Кл.слова (ненормированные):
Peak effect -- Bulk superconductors -- Critical current -- Pinning -- X-ray diffraction -- YBCO -- Doping -- Paramagnetic magnetization
Аннотация: Superconducting and paramagnetic contributions to the magnetization of polycrystalline Y1−xHoxBa2Cu3O7−δ samples were investigated. The superconductivity is responsible for a partial screening of magnetic ions from an external magnetic field and for a possible sinking of antiferromagnetic correlations between these ions. Magnetic moments of Ho ions influence on a peak effect induced by the order–disorder transition of the Abrikosov vortex lattice. The critical current density and the critical temperature of YBCO are not changed by the Ho doping.

Смотреть статью,
WOS,
Читать в сети ИФ
Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.

Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Semenov, S. V.; Семёнов, Сергей Васильевич; Terentyev, K. Yu.; Терентьев, Константин Юрьевич; Yakimov, I. S.; Balaev, D. A.; Балаев, Дмитрий Александрович; Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR); Government of the Krasnoyarsk Territory, Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activities, project "Superconducting properties of YBCO incorporated by paramagnetic rare-earth elements" [20-42-240008]
}
Найти похожие

Гохфельд, Денис Михайлович.
Высокопористые сверхпроводники: синтез, исследования и перспективы / Д. М. Гохфельд, М. Р. Коблишка, А. Коблишка-Венева // Физ. металлов и металловед. - 2020. - Т. 121, № 10. - С. 1026-1038, DOI 10.31857/S0015323020100058. - Библиогр.: 146 . - ISSN 0015-3230
Кл.слова (ненормированные):
YBCO -- Bi-2223 -- Bi-2212 -- MgB2 -- синтез -- пористость -- пена -- поликристалл -- полотно -- губка -- пиннинг -- критический ток -- перколяция -- намагниченность
Аннотация: Представлен обзор исследований сверхпроводников с пористостью выше 50%. Поры в таких сверхпроводящих материалах обеспечивают проникновение хладагента, эффективный отвод тепла и стабильное функционирование. Описаны методики синтеза основных групп пористых сверхпроводников. Приведены результаты исследования структурных, магнитных и электротранспортных свойств и рассмотрены особенности протекания тока через пористые сверхпроводники различных типов. Представлены направления дальнейших разработок и применений пористых сверхпроводников.

РИНЦ,
Читать в сети ИФ

Переводная версия Gokhfeld D. M. Highly Porous Superconductors: Synthesis, Research, and Prospects [Текст] / D. M. Gokhfeld, M. R. Koblischka, A. Koblischka-Veneva // Phys. Metals Metallogr. - 2020. - Vol. 121 Is. 10.- P.936-948

Держатели документа:
Институт физики им. Л.В. Киренского ФИЦ КНЦ СО РАН
Лаборатория сверхпроводящих материалов, Департамент материаловедения и инженерии, Институт технологии Шибура, Токио, Япония

Доп.точки доступа:
Коблишка, М.Р.; Коблишка-Венева, А.; Gokhfeld, D. M.
}
Найти похожие

10.

    Flux creep after field trapping in YBa2Cu3Ox foams / M. R. Koblischka, S. Pavan Kumar Naik, A. Koblischka-Veneva [et al.] // Supercond. Sci. Technol. - 2020. - Vol. 33, Is. 4. - Ст. 044008, DOI 10.1088/1361-6668/ab72c3. - Cited References: 38. - We thank G Schmitz (ACCESS, Aachen, Germany) for providing us with the foam sample, and K Berger, B Douine and Q Nouailhetas (GREEN, Nancy, France) for valuable discussions concerning applications of the superconducting foam materials. This work is part of the SUPERFOAM International Project funded by ANR and DFG under references ANR-17-CE05–0030 and DFG-ANR Ko2323–10, respectively . - ISSN 0953-2048
   Перевод заглавия: Крип потока после захвата поля в пенах YBa2Cu3Ox
Кл.слова (ненормированные):
YBCO -- superconducting foam -- flux creep -- trapped fields
Аннотация: The time-dependence of the field distribution on the surface of YBa2Cu3O x (YBCO) foam samples after field trapping is analysed. The foam samples were magnetised using a bulk permanent magnet at 77 K, and the trapped fields (TFs) were recorded with a scanning Hall probe 1 mm above the sample surface. Besides a large TF peak, several small peaks are observed. The time dependence of the local fields of these peaks and of the large peak are clearly different, which points to a different origin. In this way, the time-dependent TF measurements reveal important information about the current flow in the foam samples. A non-logarithmic relaxation process takes place in the foam samples. Furthermore, we compare these results with classic creep measurements performed on an individual foam strut removed from the bulk. The creep rate for the TF distribution is found to be ~8%, whereas the creep rate of the foam strut is about 4% in a large temperature and field range (20–60 K, 0–2 T).

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Superconducting Materials Laboratory, Department of Materials Science and Engineering, Shibaura Institute of Technology, Tokyo, 135-8548, Japan
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Superconducting Electronics Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Central 2, Umezono, Tsukuba, Ibaraki, 305-8568, Japan

Доп.точки доступа:
Koblischka, M. R.; Pavan Kumar Naik, S.; Koblischka-Veneva, A.; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Murakami, M.
}
Найти похожие

11.

    Исследование микроструктурных особенностей, фазового состава и магнитных свойств композитов на основе YBCO и добавок несверхпроводящего компонента СuО, полученного в плазме дугового разряда низкого давления / И. В. Карпов, А. В. Ушаков, А. А. Лепешев [и др.] // Материаловедение. - 2020. - № 6. - С. 27-32, DOI 10.31044/1684-579X-2020-0-6-27-32. - Библиогр.: 12 . - ISSN 1684-579X
   Перевод заглавия: Investigation of microstructural features, phase composition and magnetic properties of YBCO-based composites and additives of nonsuperconducting component cuo obtained in low-pressure arc plasma
Кл.слова (ненормированные):
плазма дугового разряда низкого давления -- нанопорошок CuO -- центры пиннинга -- высокотемпературный сверхпроводник -- low-pressure arc plasma -- CuO nanopowder -- Pinning center -- high-temperature superconductor
Аннотация: Разработан метод, позволяющий формировать на поверхности дисперсных частиц порошка ВТСП-керамики несверхпроводящего покрытия, состоящего из самоорганизующихся кристаллов CuO, размеры которых менее длины когерентности, т.е. в пределах нескольких десятков нанометров. Показано, что сочетание самоорганизующихся структур в виде «усов» и наночастиц, появляющихся в результате совместного спекания порошков YBa2Cu3O7-x и электродуговых нанопорошков CuO, приводит к существенному увеличению плотности тока и появлению пик-эффекта в области сильных магнитных полей. Очень высокая плотность тока возникает из сложного пиннинга вихрей, где дефекты в виде «усов» обеспечивают большую энергию пиннинга, а наночастицы подавляют крип потока. Регулирование морфологии подобных структур возможно простым изменением концентрации нанодисперсных добавок. Показано, что наиболее оптимальной является добавка CuO в количестве 20% (мас.).
A method has been developed, that allows one to form a non-superconducting coating on the surface of dispersed particles of an HTSC ceramic powder consisting of self-organizing CuO crystals whose sizes are less than the coherence length, i.e. within a few tens of nanometers. It was found out that the combination of self-organizing structures in the form of «whiskers» and nanoparticles resulting from the joint sintering of YBa2Cu3O7-x powders and CuO nanocrystals led to a significant increase in current density and the appearance of a peak effect in the region of strong magnetic fields. A very high current density arises from complex pinning of vortices, where defects in the form of «whiskers» provide a large pinning energy, and nanoparticles suppress creep flux. Morphology of such structures can be regulated by a simple change in the concentration of nanodispersed additives. It was determined that the addition of CuO in an amount of 20 wt.% was the most optimal.

Смотреть статью,
РИНЦ

Переводная версия Investigation of microstructural features, phase composition, and magnetic characteristics of YBCO-based composites and additives of CuO non-superconducting component prepared in low-pressure arc discharge plasma [Текст] / I. V. Karpov, A. V. Ushakov, A. A. Lepeshev [et al.] // Inorg. Mater.: Appl. Res. - 2021. - Vol. 12 Is. 1.- P.142-146

Держатели документа:
Институт физики им. Л. В. Киренского СО РАН
Сибирский федеральный университет
Федеральный исследовательский центр «Красноярский научный центр Сибирского отделения РАН»

Доп.точки доступа:
Карпов, И. В.; Ушаков, А. В.; Лепешев, Анатолий Александрович; Дёмин, В. Г.; Федоров, Л. Ю.; Гончарова, Е. А.; Зеер, Г. М.; Жарков, Сергей Михайлович; Zharkov, S. M.; Абкарян, А. К.
}
Найти похожие

12.

Gokhfeld, D. M.
Highly Porous Superconductors: Synthesis, Research, and Prospects / D. M. Gokhfeld, M. R. Koblischka, A. Koblischka-Veneva // Phys. Metals Metallogr. - 2020. - Vol. 121, Is. 10. - P. 936-948, DOI 10.1134/S0031918X20100051. - Cited References: 146 . - ISSN 0031-918X. - ISSN 1555-6190

РУБ Metallurgy & Metallurgical Engineering
Рубрики:
HIGH-T-C
CRITICAL-CURRENT DENSITY
HIGH-TEMPERATURE SUPERCONDUCTORS
Кл.слова (ненормированные):
YBCO -- Bi2223 -- Bi2212 -- MgB2 -- synthesis -- porosity -- foam -- polycrystal -- fabric -- sponge -- pinning -- critical current -- percolation -- magnetization
Аннотация: This paper presents a review of studies of superconductors with a porosity above 50%. The pores in such superconducting materials allow refrigerant penetration and provide efficient heat dissipation and stable operation. Methods for the synthesis of the main groups of porous superconductors are described. The results of studies of the structural, magnetic, and electrical transport properties are presented, and the features of the current flow through porous superconductors of various types are considered. The directions of further development and application of porous superconductors are presented.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ

Публикация на русском языке Гохфельд, Денис Михайлович. Высокопористые сверхпроводники: синтез, исследования и перспективы [Текст] / Д. М. Гохфельд, М. Р. Коблишка, А. Коблишка-Венева // Физ. металлов и металловед. - 2020. - Т. 121 № 10. - С. 1026-1038

Держатели документа:
Russian Acad Sci, Kirensky Inst Phys, Fed Res Ctr, Krasnoyarsk Sci Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Shibura Inst Technol, Dept Mat Sci & Engn, Lab Superconducting Mat, Tokyo 1358548, Japan.

Доп.точки доступа:
Koblischka, M. R.; Koblischka-Veneva, A.; Гохфельд, Денис Михайлович
}
Найти похожие

13.

Semenov, S. V.
Magnetoresistance Hysteresis Evolution in the Granular Y–Ba–Cu–O High-Temperature Superconductor in a Wide Temperature Range / S. V. Semenov, D. A. Balaev // J. Supercond. Novel Magn. - 2019. - Vol. 32, Is. 8. - P. 2409–2419, DOI 10.1007/s10948-019-5043-2. - Cited References: 55. - The work was supported by the Russian Science Foundation (Grant No. 17-72-10050). . - ISSN 1557-1939
Кл.слова (ненормированные):
Granular HTSC -- YBCO -- Magnetoresistance hysteresis -- Effective field -- Intergrain medium -- Magnetic flux compression
Аннотация: The temperature evolution of the magnetoresistance hysteresis in the granular YBa2Cu3O7-δ high-temperature (TC ≈ 92 K) superconductor has been investigated. The measurements have been performed in the high-temperature region (78–90 K) and at the liquid helium temperature (4.2 K). The results obtained have been analyzed using the developed model of the behavior of transport properties of a granular high-temperature superconductor in an external magnetic field. Within the discussed model, the dissipation of the grain boundary subsystem is determined by the intergrain spacing-averaged effective field Beff, which is a superposition of external field H and the field induced by the magnetic moments of superconducting grains. Such a consideration yields the expression Beff(H) = H − 4πM(H) α for the effective field in the intergrain medium, where M(H) is the experimental hysteretic dependence of magnetization and α is the parameter of magnetic flux crowding in the intergrain medium. Here, the magnetoresistance is assumed to be proportional to the absolute value of the effective field: R(H) ~ |Beff(H)|. Analysis of the experimental R(H) and M(H) dependences obtained under the same conditions for the investigated high-temperature superconductor sample showed that in the high-temperature region this parameter is α ≈ 25. At the low temperature (4.2 K), we may state that the degree of flux crowding increases and the estimated α value is ~ 50. The estimates made are indicative of the strong effect of flux compression in the intergrain medium on the magnetotransport properties of the investigated granular high-temperature superconductor system. Possible reasons for a discrepancy between the developed model concepts and experimentally observed low-temperature R(H) hysteresis are analyzed.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Семёнов, Сергей Васильевич
}
Найти похожие

14.

    Superconducting YBCO Foams as Trapped Field Magnets / M. R. Koblischka [et al.] // Materials. - 2019. - Vol. 12, Is. 6. - Ст. 853, DOI 10.3390/ma12060853. - Cited References: 62. - This work is part of the SUPERFOAM international project funded by ANR and DFG under the references ANR-17-CE05-0030 and DFG-ANR Ko2323-10, respectively. Further funding by a SIT start-up grant is also gratefully acknowledged. . - ISSN 1996-1944
   Перевод заглавия: Сверхпроводящие YBCO пены в качестве магнитов, действующих благодаря захваченному полю

РУБ Materials Science, Multidisciplinary
Рубрики:
CRITICAL CURRENT-DENSITY
   TRANSPORT-PROPERTIES
   SINGLE-GRAIN
   BULK
Кл.слова (ненормированные):
High-Tc superconductors -- YBCO -- foam -- trapped fields -- current flow
Аннотация: Superconducting foams of YBa2Cu3Oy (YBCO) are proposed as trapped field magnets or supermagnets. The foams with an open-porous structure are light-weight, mechanically strong and can be prepared in large sample sizes. The trapped field distributions were measured using a scanning Hall probe on various sides of an YBCO foam sample after field-cooling in a magnetic field of 0.5 T produced by a square Nd-Fe-B permanent magnet. The maximum trapped field (TF) measured is about 400 G (77 K) at the bottom of the sample. Several details of the TF distribution, the current flow and possible applicatons of such superconducting foam samples in space applications, e.g., as active elements in flux-pinning docking interfaces (FPDI) or as portable strong magnets to collect debris in space, are outlined.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Shibaura Inst Technol, Dept Mat Sci & Engn, Superconducting Mat Lab, Tokyo 1358548, Japan.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
ACCESS, Intzestr 5, D-52072 Aachen, Germany.
Natl Inst Adv Ind Sci & Technol, Elect & Photon Res Inst, Superconducting Elect Grp, 1-1-1 Cent 2, Tsukuba, Ibaraki 3058568, Japan.
Raychem RPG Pvt Ltd, Aga Abbas Ali Rd Off Halasur Rd, Bangalore 560042, Karnataka, India.

Доп.точки доступа:
Koblischka, Michael R.; Naik, Sugali Pavan Kumar; Koblischka-Veneva, Anjela; Murakami, Masato; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Reddy, Eddula Sudhakar; Schmitz, Georg J.; ANR [ANR-17-CE05-0030]; DFG [DFG-ANR Ko2323-10]; SIT start-up grant
}
Найти похожие

15.

    Magnetic properties and critical current of superconducting nanocomposites (1 −x)YBa2Cu3O7−δ + xCuO / A. A. Lepeshev [et al.] // J. Supercond. Nov. Magn. - 2018. - Vol. 31, Is. 12. - P. 3841-3845, DOI 10.1007/s10948-018-4676-x. - Cited References: 15. - The work was performed with a support of the grant of the Russian Science Foundation (project no. 16-19-10054). . - ISSN 1557-1939. - ISSN 1557-1947
   Перевод заглавия: Магнитные свойства и критический ток сверхпроводящих нанокомпозитов (1−x)YBa2Cu3O7−δ + xCuO

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
PULSED-ARC DISCHARGE
   COMPOSITES
   PLASMA
   LOOPS
Кл.слова (ненормированные):
Superconducting polycrystals -- YBCO ceramics -- Critical current -- Magnetic properties
Аннотация: The aim of this paper was to study the effect of nanoscale inclusions of CuO as the second ingredient of composites on transport properties of superconducting YBa2Cu3O7 polycrystals. The samples of YBa2Cu3O7−δ with different content of CuO nanoparticles were synthesized. The analysis of the magnetic properties was carried out within the extended critical state model. It was found that the addition of 0.5 and 1% of CuO nanoparticles leads to an increase in the intragranular density of the critical current at T= 4.2 K. A further increase of x from 2 to 15% and more than 40% decreases the critical current density. The critical current density higher than in the reference sample was also found in the samples with x= 20% and x= 24%.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Fed Res Ctr, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Lepeshev, A. A.; Patrin, G. S.; Патрин, Геннадий Семёнович; Yurkin, G. Yu.; Юркин, Глеб Юрьевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Nemtsev, I. V.; Немцев, Иван Васильевич; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Balaev, A. D.; Балаев, Александр Дмитриевич; Demin, V. G.; Bachurina, E. P.; Karpov, I. V.; Ushakov, A. V.; Fedorov, L. Yu.; Irtyugo, L. A.; Petrov, M. I.; Петров, Михаил Иванович; Russian Science Foundation [16-19-10054]
}
Найти похожие

16.

    Tuning the peak effect in the Y1−xNdxBa2Cu3O7−δ compound / D. M. Gokhfeld [et al.] // Ceram. Int. - 2017. - Vol. 43, Is. 13. - P. 9985-9991, DOI 10.1016/j.ceramint.2017.05.011. - Cited References: 37. - This work was supported by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project no. 16-48-243018 and the Russian Foundation for Basic Research, project no. 16-38-00400. . - ISSN 0272-8842
   Перевод заглавия: Управление пик-эффектом в соединении Y1−xNdxBa2Cu3O7−δ
Кл.слова (ненормированные):
Peak effect -- Bulk superconductors -- Critical current -- Pinning -- Characterization -- YBCO
Аннотация: Polycrystalline Y1−xNdxBa2Cu3O7−δ (x=0.02, 0.11, and 0.25) superconductors are synthesized. Nd atoms are uniformly distributed over grains. The magnetization loops of the samples have a pronounced second peak in a wide temperature range. The magnetization data are analyzed using the extended critical state model. It is found that the order-disorder transition of the vortex lattice is affected by doping with neodymium and temperature; the second-peak field and width decrease monotonically with increasing x value. The undoped polycrystalline YBa2Cu3O7−δ compound is assumed to exhibit the peak effect in higher magnetic fields.

Смотреть статью,
Scopus,
WOS,
Читать в сети ИФ
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Akademgorodok 50, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Balaev, D. A.; Балаев, Дмитрий Александрович; Yakimov, I. S.; Petrov, M. I.; Петров, Михаил Иванович; Semenov, S. V.; Семёнов, Сергей Васильевич
}
Найти похожие

17.

    Establishing of peak effect in YBCO by Nd substitution / D. M. Gokhfeld [et al.] // J. Magn. Magn. Mater. - 2017. - Vol. 440. - P. 127-128, DOI 10.1016/j.jmmm.2016.12.089. - Cited References:10. - The work was supported by Russian Foundation for Basic Research Grant No. 16-38-00400. . - ISSN 0304-8853. - ISSN 1873-4766
   Перевод заглавия: Возникновение пик-эффекта в YBCO при добавлении Nd

РУБ Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
SUPERCONDUCTORS
Кл.слова (ненормированные):
Peak effect -- Magnetization -- Bulk superconductors -- Critical current -- YBCO -- Nd3+
Аннотация: Y0.75Nd0.25Ba2Cu3O7−d superconductor has the peak effect with pronounced fishtail feature on magnetization hysteresis. The magnetic field of the peak effect maximum is in ~4 times higher than one of NdBa2Cu3O7−d. The magnetization hysteresis is tilted anticlockwise due to paramagnetic Nd3+ ions occurred on the surface of grains and in the vortex cores.

Смотреть статью,
WOS,
Читать в сети ИФ

Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Semenov, S. V.; Семёнов, Сергей Васильевич; Balaev, D. A.; Балаев, Дмитрий Александрович; Yakimov, I. S.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Terentyev, K. Yu.; Терентьев, Константин Юрьевич; Freydman, A. L.; Фрейдман, Александр Леонидович; Krasikov, A. A.; Красиков, Александр Александрович; Petrov, M. I.; Петров, Михаил Иванович; Russian Foundation for Basic Research [16-38-00400]; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН
}
Найти похожие

18.

Control of peak effect in YBCO by Nd substitution / D. M. Gokhfel'd [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. O2.7. - P. 140. - References: 4. - The work was supported by Russian Foundation for Basic Research Grant No.16-38-00400 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
peak effect -- paramagnetic magnetization -- bulk superconductors -- critical current -- irreversibility field

Доп.точки доступа:
Gokhfel'd, D. M.; Гохфельд, Денис Михайлович; Semenov, S. V.; Семёнов, Сергей Васильевич; Balaev, D. A.; Балаев, Дмитрий Александрович; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Terent'yev, K. Yu.; Терентьев, Константин Юрьевич; Freydman, A. L.; Фрейдман, Александр Леонидович; Krasikov, A. A.; Красиков, Александр Александрович; Petrov, M. I.; Петров, Михаил Иванович; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

Нет сведений об экземплярах }
Найти похожие

19.

    Jc enhancement and flux pinning of Se substituted YBCO compound / Z. D. Yakinci [et al.] // J. Mater. Sci.: Mater. Electron. - 2013. - Vol. 24. - P. 4790–4797, DOI 10.1007/s10854-013-1476-8. - The work is supported by Project No. 7 of RAS Program ‘"Quantum physics of condensed matter" . - ISSN 0957-4522
   Перевод заглавия: Увеличение критического тока и пиннинг потока в соединении YBCO с замещением Se
Аннотация: Y2/3 Se1/3Ba2Cu3Ox compound was fabricated by using solid state fabrication technique. Optimum heat treatments conditions for Y0.77Se0.33Ba2Cu3Ox were investigated. It was determined that the XRD results of these samples were similar to Y-123 phase with some impurities. Magnetization dependence of applied magnetic fields was measured in the range of 0-9В T at 10-50В K. The symmetric and asymmetric M-H loops were obtained for the samples. Magnetization loops obtained from measurements were successfully described by the extended Valkov-Khrustalev model. The temperature and applied magnetic field dependencies of magnetization of sample were estimated and critical current density of samples was calculated by Bean model and pinning force of samples was calculated by using Lorentz force. It is found from critical current density values that Se additions were acted as a pinning center which increased critical current density. В© 2013 Springer Science+Business Media New York.

Scopus,
WoS,
WOS,
Читать в сети ИФ
Держатели документа:
Inonu Univ, Sagl Hizmetleri Meslek Yuksek Okulu, TR-44280 Malatya, Turkey
SB RAS, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Inonu Univ, Bilimsel & Teknol Arastrma Merkezi, TR-44280 Malatya, Turkey
Inonu Univ, Fen Edebiyat Fak, Superiletkenl Arastirma Grubu, TR-44280 Malatya, Turkey

Доп.точки доступа:
Yakinci, Z. D.; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Altin, E.; Kurt, F.; Altin, S.; Demirel, S.; Aksan, M. A.; Yakinci, M. E.
}
Найти похожие

20.

Contributions from Inter-grain Boundaries to the Magneto-resistive Effect in Polycrystalline High-T (C) Superconductors. The Underlying Reason of Different Behavior for YBCO and BSCCO Systems / D. A. Balaev [et al.] // J. Supercond. Nov. Magn. - 2011. - Vol. 24, Is. 7. - P. 2129-2136, DOI 10.1007/s10948-011-1166-9. - Cited References: 30. - This work is supported by program N5 of RAS, project N7. . - ISSN 1557-1939

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
   PHASE-SLIP
   TRANSPORT-PROPERTIES
   TRANSITION
   FIELD
   COMPOSITES
   BULK
   TAPES
   YBA2CU3O7-DELTA
   DISSIPATION
Кл.слова (ненормированные):
BSCCO -- YBCO -- Intergrain boundaries -- Magnetoresistance -- BSCCO -- Intergrain boundaries -- Magnetoresistance -- YBCO -- BSCCO -- BSCCO system -- Comparative studies -- High Tc superconductors -- High-field -- Inter-grain -- Irreversibility lines -- Magneto-resistive effect -- Polycrystalline -- Resistive transition -- Standard measurements -- Weak pinning -- YBCO -- Bismuth -- Electric resistance -- Grain boundaries -- High temperature superconductors -- Lead -- Magnetic fields -- Magnetoelectronics -- Magnetoresistance -- Magnetos -- Superconductivity -- Yttrium barium copper oxides -- Semiconductor metal boundaries
Аннотация: In order to clarify the mechanisms in charge of broadening of resistive transition R(T) in magnetic fields of bismuth-based polycrystalline high-T (C) superconductor (HTSC), a comparative study of Bi1.8Pb0.3Sr1.9Ca2Cu3O (x) (BSCCO) and YBa2Cu3O7-delta (YBCO) have been performed. Magnetoresistive effects and irreversibility line obtained from magnetic measurements have been studied. It was established that (1) for YBCO, the smooth part of R(T) dependence unambiguously corresponds to dissipation in the intergrain boundaries for arbitrary magnetic fields; (2) for polycrystalline BSCCO, the smooth part of R(T) dependences correspond to dissipation within intergrain boundary subsystem in the field range H <10(2) Oe only, while standard measurements of R(T) dependences in magnetic field range H > 10(2) Oe reflect the dissipation processes occurring both in intergrain boundary and HTSC grain subsystems; (3) for the high-field range, the contribution from intergrain boundaries of BSCCO can be distinguished from magnetoresistance R(H) dependences obtained at high enough current density on textured samples. It is proposed that various magneto-resistive properties of these classical HTSC systems are due comparatively weak pinning in BSCCO.

WOS,
Scopus,
Смотреть статью,
Читать в сети ИФ
Держатели документа:
[Balaev, D. A.
Popkov, S. I.
Semenov, S. V.
Bykov, A. A.
Dubrovskiy, A. A.
Shaikhutdinov, K. A.
Petrov, M. I.] LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Balaev, D. A.
Popkov, S. I.
Sabitova, E. I.
Dubrovskiy, A. A.
Shaikhutdinov, K. A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
L.V. Kirensky Institute of Physics, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Balaev, D. A.; Балаев, Дмитрий Александрович; Popkov, S. I.; Попков, Сергей Иванович; Semenov, S. V.; Семенов, Сергей Васильевич; Bykov, A. A.; Быков, Алексей Анатольевич; Sabitova, E. I.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Petrov, M. I.; Петров, Михаил Иванович
}
Найти похожие