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1.
A comparative study
of transport properties of composites HTSC+MgTiO3 and HTSC + NiTiO3. The effect of paramagnetic NiTiO3 / M. I. Petrov, D. A.
Balaev
, K. A. Shaikhutdinov, K. S. Aleksandrov> //
Physica C-Superconductivity and its Applications. - 2000. -
Vol. 341-348
,
Pt. 3
. - P. 1863-1864,
DOI
10.1016/S0921-4534(00)01217-X . - ISSN 0921-4534
Кл.слова (ненормированные):
Composite materials
--
Copper oxides
--
Josephson junction devices
--
Magnesium compounds
--
Nickel compounds
--
Paramagnetism
--
Superconductivity
--
Thermal effects
--
Transport properties
--
Yttrium compounds
--
Abrikosov vortices flow
--
Superconductor insulator superconductor junction
--
Thermally activated phase slippage
--
High temperature superconductors
Аннотация:
Bulk composites Y3/4Lu1/4Ba2Cu3O7+NiTiO3 and Y3/4Lu1/4Ba2Cu3O7+MgTiO3 with insulator volume content 7.5% and 15% modelling a network of Superconductor-Insulator-Superconductor (S-I-S) junctions have been prepared. The ?(T) dependences of composites HTSC+MgTiO3 are described well by the mechanism of Thermally Activated Phase Slippage (TAPS). The anomalous behavior of resistivity ?(T) of HTSC+NiTiO3 composites manifesting as a kink on ?(T) curves at some temperature Tm have been observed. In the temperature range Tm < T < TC the dissipation is Ohmic while below Tm the CVCs are strongly non-linear. This peculiarity is interpreted as arisen owing to Abrikosov vortices flow.
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Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; International conference on materials and mechanisms of superconductivity high temperature superconductors(6 ; 2000 ; Feb. ; 20-25 ; Houston, Texas, USA)
}
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2.
A DC superconducting
fault current limiter using die-pressed YBa2Cu3O7 ceramic / A. G. Mamalis [et al.]> // Supercond. Sci. Technol. - 2001. -
Vol. 14
,
Is. 6
. - P. 413-416,
DOI
10.1088/0953-2048/14/6/316. - Cited References: 14 . - ISSN 0953-2048
РУБ
Physics, Applied + Physics, Condensed Matter
Рубрики:
CURRENT-VOLTAGE CHARACTERISTICS
WEAK LINKS
COMPOSITES
Кл.слова (ненормированные):
Current voltage characteristics
--
Electric fault currents
--
High temperature applications
--
Josephson junction devices
--
Polycrystalline materials
--
Fault current limiter devices
--
Superconducting materials
Аннотация:
A model of a superconducting fault current limiter on a polycrystalline high-temperature superconductor basis is checked in the dc short circuit regime. Protection of load takes place under the conditions described in this paper. The use of ceramic materials with superconducting-normal metal-superconducting Josephson junction network having an S-type current-voltage characteristic (CVC) is shown to be effective for fault current limiter devices.
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Держатели документа:
Natl Tech Univ Athens, Dept Engn Mech, Mfg Technol Div, GR-10682 Athens, Greece
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Res Inst Phys & Engn, Krasnoyarsk 660036, Russia
ИФ СО РАН
Manufacturing Technology Division, Mechanical Engineering Department, National Technical University of Athens, Greece
Kirensky Institute of Physics, 660036 Krasnoyarsk, Russian Federation
Research Institute of Physics and Engineering, Krasnoyarsk State University, 660036 Krasnoyarsk, Russian Federation
Доп.точки доступа:
Mamalis, A. G.; Petrov, M. I.; Петров, Михаил Иванович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Gohfeld, D. M.; Militsyn, S. V.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Kirko, V. I.; Vottea, I. N.
}
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3.
A new concept
for a current switch based on a high-temperature superconductor / S. G. Ovchinnikov [et al.]> // Tech. Phys. - 2001. -
Vol. 46
,
Is. 10
. - P. 1299-1302,
DOI
10.1134/1.1412067. - Cited References: 14 . - ISSN 1063-7842
РУБ
Physics, Applied
Рубрики:
CURRENT LIMITER
Аннотация:
A new concept for a device for protecting an alternating-current network is offered. It is based on a combination of a superconducting limiter of a short-circuit current and a circuit breaker. A high-temperature superconductor in the form of a pile of plane rings is used as the active element of the limiter. The test results of a model of such a limiter are obtained in the steady-state short-circuit regime. The characteristics of composite silverless materials used for design of the breaker are given. (C) 2001 MAIK "Nauka/Interperiodica".
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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Krasnoyarsk State Univ, Res Physicotech Inst, Krasnoyarsk 660036, Russia
Natl Tech Univ Athens, GR-10682 Athens, Greece
ИФ СО РАН
L. V. Kirenskii Inst. of Phys., Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Research Physicotechnical Institute, Krasnoyarsk State University, Krasnoyarsk, 660036, Russian Federation
Natl. Technical University of Athens, 10682 Athens, Greece
Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Kirko, V. I.; Mamalis, A. G.; Petrov, M. I.; Петров, Михаил Иванович; Ivanov, V. V.;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Gokhfel'd, D. M.; Гохфельд, Денис Михайлович; Kharlamova, S. A.; Militsyn, S. V.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович
}
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4.
Krasikov, A. A.
Analysis of magnetization processes in antiferromagnetic nanoparticles in strong pulse fields (Brief review) / A. A. Krasikov, D. A.
Balaev
> // J. Exp. Theor. Phys. - 2023. -
Vol. 136
,
Is. 1
. - P. 97-105,
DOI
10.1134/S1063776123010132. - Cited References: 43. - The authors are grateful to V.L. Kirillov for synthesis of a set of NiO samples, O.N. Mart’yanov for cooperation and discussion of results for NiO nanoparticles, V.P. Ladygina for synthesis of nanoferrihydrite, S.V. Stolyar and R.S. Iskhakov for cooperation and discussion of results for ferrihydrite, and A.D.
Balaev
, K.A. Shaikhutdinov, and S.I. Popkov for the decisive contribution to the realization of pulse field setup . - ISSN 1063-7761. - ISSN 1090-6509
Аннотация:
We present a brief review of investigations and analysis of magnetization curves M(H) for NiO and ferrihydrite antiferromagnetic nanoparticles in external fields up to 250 kOe. For correct interpretation of magnetic properties of systems of antiferromagnetic nanoparticles, it is important to take into account the segment of M(H) dependences, which corresponds to high fields (exceeding 100 kOe). We analyze the regularities in the formation of additional magnetic subsystems in antiferromagnetically ordered nanoparticles due to the influence of size effects. These additional subsystems (the ferromagnetic subsystem associated with uncompensated magnetic moment and the subsystem of surface free spins) are estimated quantitatively. It is shown that antiferromagnetic nanoparticles with a size of 5 nm acquire the properties of “nanomagnets,” which are not inferior to those for iron-oxide ferromagnetic nanoparticles of the same size.
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Публикация на русском языке
Красиков, Александр Александрович. Исследование процессов намагничивания антиферромагнитных наночастиц в сильных импульсных полях (миниобзор) [Текст] / А. А. Красиков, Д. А. Балаев // Журн. эксперим. и теор. физ. - 2023. - Т. 163 Вып. 1. - С. 115-124
Держатели документа:
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Доп.точки доступа:
Balaev
, D. A.; Балаев, Дмитрий Александрович; Красиков, Александр Александрович; Eurasian Symposium “Trends in Magnetism”(8 ; 22-26 August 2022 ; Kazan, Russia)
}
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5.
Petrov, M. I.
Andreev reflection and experimental temperature dependences of the critical current in heterogeneous high-temperature superconductors (polycrystals and related composites) / M. I. Petrov, D. A.
Balaev
, D. M. Gokhfeld> // Phys. Solid State. - 2007. -
Vol. 49
,
Is. 4
. - P. 619-626,
DOI
10.1134/S106378340704004X. - Cited References: 41 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
CURRENT-VOLTAGE CHARACTERISTICS
NORMAL-METAL
WEAK LINKS
JOSEPHSON-JUNCTIONS
MODEL
SCATTERING
TRANSPORT
DISSIPATION
HYSTERESIS
Аннотация:
The temperature dependences of the critical current of Y3/4Lu1/4Ba2Cu3O7 polycrystalline high-temperature superconductors subjected to annealing for different times and those of Y3/4Lu1/4Ba2Cu3O7 + BaPbO3 composites were measured. The results obtained were analyzed in terms of the Gunsenheimer-Schussler-Kummler theory considering the Andreev reflection of carriers in a "superconductor-normal metal-superconductor" (S-N-S) junction. Good agreement between the experimental and theoretical temperature dependences of the critical current over a wide temperature range for polycrystals with both natural and artificially created boundaries (composites) made it possible to estimate the effective length of grain boundaries in the high-temperature superconductors. It was revealed that the critical current density measured at 4.2 K is an exponential function of the length of grain boundaries in samples of both types.
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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Balaev
, D. A.; Балаев, Дмитрий Александрович; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Петров, Михаил Иванович
}
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6.
Andreev reflection in
natural grain boundaries of polycrystalline high-T-c superconductor La1.85Sr0.15CuO4 / M. I. Petrov [et al.]> // Phys. Solid State. - 2003. -
Vol. 45
,
Is. 7
. - P. 1219-1222,
DOI
10.1134/1.1594233. - Cited References: 30 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
CURRENT-VOLTAGE CHARACTERISTICS
WEAK LINKS
CHARGE-TRANSPORT
JUNCTIONS
CONDUCTIVITY
HYSTERESIS
COMPOSITES
SCATTERING
Аннотация:
The temperature evolution of the current-voltage characteristic (CVC) of a "break junction" with metal-type conductivity on the polycrystalline La1.85Sr0.15CuO4 high-temperature superconductor is investigated. The CVC exhibits gap peculiarities and hysteresis, which is observed in the region of negative differential resistance. The experimental results are described well in terms of the Kummel-Gunsenheimer-Nicolsky theory for an S-N-S junction (S is a superconductor, N is a normal metal) this theory takes into account multiple Andreev reflection of quasiparticles. It is shown that the shape of the CVC and the existence and the shape of hysteresis are determined by the ratio of "long" and "short" grain boundaries in the polycrystal under investigation. (C) 2003 MAIK "Nauka / Interperiodica".
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Держатели документа:
Russian Acad Sci, Siberian Div, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Reshetnev Siberian Stt. Aerosp. U., Krasnoyarsk 660014, Russian Federation
Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Gokhfel'd, D. M.; Гохфельд, Денис Михайлович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович
}
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7.
Andreev reflections and
experimental current-voltage characteristics of break junctions of polycrystalline HTSC / M. I. Petrov [et al.]> // Physica C. - 2004. -
Vol. 408
: 7th International Conference on Materials and Mechanisms of Superconductive and High Temperature Superconductors (MAY 25-30, 2003, Rio de Janeiro, BRAZIL). - P. 620-622,
DOI
10.1016/j.physc.2004.03.085. - Cited References: 3 . - ISSN 0921-4534
РУБ
Physics, Applied
Кл.слова (ненормированные):
Andreev reflections
--
break junction
--
current-voltage characteristics
--
Andreev reflections
--
Break junction
--
Current-voltage characteristics
--
Andreev reflections
--
Break junctions
--
Elastic scattering
--
Lattice defects
--
Negative differential resistance
--
Electric fields
--
Heuristic methods
--
Hysteresis
--
Microcracks
--
Polycrystalline materials
--
Probability density function
--
Quasicrystals
--
Superconducting materials
--
Yttrium barium copper oxides
--
Current voltage characteristics
Аннотация:
The temperature evolution of current-voltage characteristics (CVCs) of break junctions made from polycrystalline Y0.75Lu0.25Ba2Cu3O7 and La1.85Sr0.15CuO4 is investigated. The experimental CVCs have hysteretic features that reflect a part of a curve with negative differential resistance. The temperature evolution of the CVCs is discussed within the framework of the Kummel-Gunsenheimer-Nicolsky theory for superconductor/normal-metal/superconductor junctions considering multiple Andreev reflections. It is shown that the shape of the CVCs of break junctions is determined by the ratio of the number of "short" and "long" intergrain normal regions in the polycrystalline HTSC under investigation. (C) 2004 Elsevier B.V. All rights reserved.
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Держатели документа:
LV Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660014, Russia
Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany
ИФ СО РАН
Kirensky Intitute of Physics, Akademgorodok, 660036 Krasnoyarsk, Russian Federation
Reshetnev Siberian Stt. Aerosp. U., 660014 Krasnoyarsk, Russian Federation
Inst. fur Theor. Phys./Astrophys., Universitat Wurzburg, D-97074 Wurzburg, Germany
Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович; Gokhfeld, D. M.; Гохфельд, Денис Михайлович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Kummel, R.
}
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8.
Angular dependence of
the magnetoresistance in Y3/4Lu1/4Ba2Cu3O7-CuO composites at 77 K / D. A.
Balaev
[et al.]> // Tech. Phys. Lett. - 2006. -
Vol. 32
,
Is. 8
. - P. 677-679,
DOI
10.1134/S1063785006080128. - Cited References: 16 . - ISSN 1063-7850
РУБ
Physics, Applied
Рубрики:
CERAMIC SUPERCONDUCTORS
MAGNETIC-FIELD
MICROSTRUCTURE
BOUNDARIES
TRANSPORT
MOTION
FILMS
Аннотация:
The angular dependence of the magnetoresistance of polycrystalline Y3/4Lu1/4Ba2Cu3O7-CuO composites has been studied. These composites represent a system of Josephson junctions and exhibit a large magnetoresistance at 77 K. In addition to the isotropic component, there is the angle-dependent component proportional to sin(2)theta, where theta is the angle between the directions of current and magnetic field. This behavior is unambiguous evidence for the process of flux flow in the Josephson medium realized in the composites.
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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk, Russia
ИФ СО РАН
Kirensky Institute of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Balaev
, D. A.; Балаев, Дмитрий Александрович; Prus, A. G.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Petrov, M. I.; Петров, Михаил Иванович
}
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9.
Anisotropic magnetization of
an NbN film / D. M. Gokhfeld, N. E. Savitskaya, S. I. Popkov [et al.]> // J. Exp. Theor. Phys. - 2022. -
Vol. 134
,
Is. 6
. - P. 707-712,
DOI
10.1134/S1063776122060097. - Cited References: 31. - We are grateful to I.V. Nemtsev for measurements on the scanning electron microscope, S.A. Skorobogatov for his help in magnetic measurements (scanning electron microscopy and magnetic measurements have been performed at the Krasnoyarsk Regional Collective Usage Center of the Federal Research Center “Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences”) . - ISSN 1063-7761
Кл.слова (ненормированные):
Critical currents
--
Magnetization
--
Niobium compounds
--
Nitrogen compounds
--
Reactive sputtering
--
Scanning electron microscopy
--
Superfluid helium
--
Anisotropic magnetization
--
Columnar structures
--
Field orientation
--
Film magnetization
--
Film surfaces
--
Liquid helium temperature
--
Magnetization loops
--
Niobium nitride films
--
Quartz substrate
--
Structural and magnetic properties
--
Current density
Аннотация:
The structural and magnetic properties of a niobium nitride (NbN) film prepared by reactive sputtering onto a quartz substrate are investigated. It is shown using scanning electron microscopy that the film has a columnar structure with a diameter of crystallite columns of about 50 nm. The film magnetization loops are measured for the field orientation parallel and perpendicular to its surface. Based on the experimental data, the critical current densities of the film are estimated in both cases. For the field parallel to the film surface, the estimate is 6.5 × 104 A/cm2 at the liquid helium temperature. For the field perpendicular to the surface, the critical current density is close to the depairing current density (107 A/cm2). Analysis of the results based on different models of magnetic vortex pinning in superconductors shows that in the former case, pinning occurs at the boundaries of columns in the bulk of the sample, while in the latter case, it is determined by the influence of the surface barrier.
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Публикация на русском языке
Анизотропная намагниченность пленки NbN [Текст] / Д. М. Гохфельд, Н. Е. Савицкая, С. И. Попков [и др.] // Журн. эксперим. и теор. физ. - 2022. - Т. 161 Вып. 6. - С. 833-839
Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Konstantinov Petersburg Nuclear Physics Institute, Nation Research Center “Kurchatov Institute”, Leningrad oblast, Gatchina, 188300, Russian Federation
Krasnoyarsk Electric Railway-Carriage Repair Works, Krasnoyarsk, 660021, Russian Federation
Mordovia State University, Saransk, 430000, Russian Federation
Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Savitskaya, N. E.; Popkov, S. I.; Kuzmichev, N. D.; Vasyutin, M. A.;
Balaev
, D. A.; Балаев, Дмитрий Александрович
}
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10.
Anisotropy and crystallite
misalignment in textured superconductors / D. M. Gokhfeld, S. V. Semenov, M. I. Petrov [et al.]> // J. Supercond. Nov. Magn. - 2023. -
Vol. 36
,
Is. 1
. - P. 59-65,
DOI
10.1007/s10948-022-06454-8. - Cited References: 21. - 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
Кл.слова (ненормированные):
Critical current
--
Anizotropy
--
BSCCO
--
Texture
--
Distribution function
--
Magnetization
--
Hysteresis loop
Аннотация:
A misalignment of anisotropic crystallites causes small values of anisotropy and decreases the critical current density of textured polycrystalline superconductors. To relate the crystallite misalignment and out-plane anisotropy, the magnetic properties of the textured Bi2223 polycrystalline superconductor were investigated. A distribution of orientation angles of crystallites was determined using different data: scanning electron microscopy images and hysteresis magnetization loops when an external magnetic field was applied at different angles with respect to the texturing plane of the sample. It was demonstrated that the standard deviation of the distribution and the magnetic disorder angle of crystallites in textured samples can be determined from the magnetization data in perpendicular directions. These data may be either the irreversible magnetization measured for two different orientations of the sample or the simultaneously measured magnetization projections parallel and perpendicular to the magnetic field.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russia
Siberian Federal University, Krasnoyarsk, 660041, Russia
Federal Research Center “Krasnoyarsk Science Center of the Siberian Branch of the Russian Academy of Sciences”, Krasnoyarsk, 660036, Russia
Доп.точки доступа:
Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Semenov, S. V.; Семенов, Сергей Васильевич; Petrov, M. I.; Петров, Михаил Иванович; Nemtsev, I. V.; Немцев, Иван Васильевич;
Balaev
, D. A.; Балаев, Дмитрий Александрович
}
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11.
Balaev
, D. A.
Anisotropy of the magnetoresistance hysteresis in the granular superconductor Y-Ba-Cu-O at different magnetic-field and transport-current orientations / D. A.
Balaev
, S. V. Semenov, M. A. Pochekutov> // J. Appl. Phys. - 2017. -
Vol. 122
,
Is. 12
. - Ст. 123902,
DOI
10.1063/1.4986253. - Cited References: 45. - This study was supported by the Russian Foundation for Basic Research, Government of the Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 16-48-243018. . - ISSN 0021-8979
Кл.слова (ненормированные):
Anisotropy
--
High temperature superconductors
--
Hysteresis
--
Magnetic fields
--
Magnetic flux
--
Magnetism
--
Magnetoresistance
--
Different-magnetic fields
--
External magnetic field
--
Granular superconductors
--
Macroscopic transport
--
Magnetic flux compression
--
Magneto transport properties
--
Model representation
--
Transport currents
--
Superconducting materials
Аннотация:
Dissipation in granular high-temperature superconductors (HTSs) during the passage of macroscopic transport current j is mainly determined by carrier tunneling through intergrain boundaries (Josephson junctions). In the presence of external magnetic field H, it is necessary to take into account the significant magnetic flux compression, which can lead to the situation when the effective field Beff in the intergrain boundaries exceeds the external field by an order of magnitude. This is observed as a wide hysteresis of the field dependence of magnetoresistance R(H). In this study, we investigate the R(H) hysteresis evolution in granular 1-2-3 HTSs in different j-H orientations. The magnetic flux compression significantly affects the magnetoresistance and its hysteresis for both perpendicular (H ⊥ j) and parallel (H ∥ j) orientations. The obtained experimental data on the R(H) hysteresis at the arbitrary angles θ = ∠H, j are explained using the approach developed for describing the magnetoresistance hysteresis in granular HTSs with regard to the magnetic flux compression and the model representations proposed by Daghero et al. [Phys. Rev. B 66(13), 11478 (2002)]. A concept of the effective field in the intergrain medium explains the well-known anisotropy of the magnetotransport properties of granular HTSs.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Semenov, S. V.; Семёнов, Сергей Васильевич; Pochekutov, M. A.; Балаев, Дмитрий Александрович
}
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12.
Anisotropy of the
magnetoresistive properties of granular high-temperature superconductors resulting from magnetic flux compression in the intergrain medium / S. V. Semenov [et al.]> // Phys. Solid State. - 2017. -
Vol. 59
,
Is. 7
. - P. 1291-1297,
DOI
10.1134/S1063783417070241. - Cited References: 26 . - ISSN 1063-7834
Аннотация:
To elucidate the origin of the well-known anisotropy of the magnetoresistive properties of granular high-temperature superconductors (HTSs), which is related to the mutual orientation of magnetic field H and transport current j, we investigate the hysteretic dependences of magnetoresistance R(H) of the yttrium HTS sample at the perpendicular (H ⊥ j) and parallel (H || j) configurations. The hysteretic R(H) dependences are analyzed using the concept of the effective field in the intergrain boundaries through which superconducting current carriers tunnel. The effective degree of magnetic flux compression in the intergrain medium at the perpendicular configuration was found to be twice as much as at the parallel one. This approach explains well the anisotropy of the magnetoresistive properties of granular HTSs, which was previously reported by many authors, and the temperature dependences of the resistance in the resistive transition region.
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Публикация на русском языке
Анизотропия магниторезистивных свойств гранулярных высокотемпературных сверхпроводников как результат сжатия магнитного потока в межгранульной среде [Текст] / С. В. Семенов [и др.] // Физ. тверд. тела : Наука, 2017. - Т. 59 Вып. 7. - С. 1267–1273
Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Semenov, S. V.; Семенов, Сергей Васильевич;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Pochekutov, M. A.; Почекутов, М. А.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич
}
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13.
Anomalous transport properties
of a paramagnetic NiTiO3+HTSC two-phase system representing a random Josephson junction network / M. I. Petrov [et al.]> // JETP Letters. - 2002. -
Vol. 75
,
Is. 3
. - P. 138-141,
DOI
10.1134/1.1469500. - Cited References: 23 . - ISSN 0021-3640
РУБ
Physics, Multidisciplinary
Рубрики:
RESISTIVE PROPERTIES
CRITICAL CURRENTS
SNS JUNCTIONS
COMPOSITES
Аннотация:
Composites representing a network of random Josephson junctions and characterized by the compositions 92.5 at. % Y3/4Lu1/4Ba2Cu3O7 + 7.5 at. % NiTiO3 and 92.5 at. % Y3/4Lu1/4Ba2Cu3O7 + 7.5 at.% MgTiO3 are synthesized, and their magnetoresistance properties are studied. The temperature dependence of the resistance R(T) measured for the composite that contains the paramagnetic NiTiO3 compound exhibits a characteristic feature below the superconducting transition temperature T-c of the high-T-c superconductor, namely, a region where R is independent of the current j and weakly depends on the magnetic field H. Below a certain temperature T-m, a strong dependence of R on j and H is observed, which is peculiar to a network of Josephson junctions. The dependences R(T, j, H) obtained for the "reference" samples with the nonmagnetic MgTiO3 compound exhibit no such features. The anomalous behavior of the HTSC + NiTiO3 composite is explained by the effect produced by the magnetic moments of Ni atoms in the insulating barriers on the transport current. (C) 2002 MAIK "Nauka / Interperiodica".
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Держатели документа:
Russian Acad Sci, Siberian Div, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Popkov, S. I.; Попков, Сергей Иванович
}
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14.
Applicability of the
theory based on Andreev reflection to the description of experimental current-voltage characteristics of polycrystalline HTSC plus normal metal composites / M. I. Petrov [et al.]> // Physica C. - 1999. -
Vol. 314
,
Is. 1-2
. - P. 51-54,
DOI
10.1016/S0921-4534(99)00151-3. - Cited References: 19 . - ISSN 0921-4534
РУБ
Physics, Applied
Рубрики:
WEAK LINKS
JUNCTIONS
FILMS
Кл.слова (ненормированные):
YBaCuO + BaPbO3 composites
--
network of weak S-N-S links
--
current-voltage characteristic
Аннотация:
Measurements of current-voltage characteristics (CVC) of Y3/4Lu1/4Ba2,Cu3O7 + BaPbO3 and Y3/4Lu1/4Ba2Cu3O7 +BaPb0.9Sn0.1O3 composites modelling network of superconducting-normal metal-superconducting (S-N-S) junctions in effectively 'clean' and 'dirty' limits, respectively, have been performed. Essential difference of CVCs for these composites is observed in spite of the identical preparation technique and experimental conditions. It is shown that the theory for S-N-S junctions [R. Kummel, U. Gunsenheimer, R. Nicolsky, Phys. Rev. B, 42 (1990) 3932] well describes the experimental CVCs of the composites in both cases. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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Держатели документа:
LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Gokhfeld, D. M.; Гохфельд, Денис Михайлович; Ospishchev, S. V.; Оспищев С. В.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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15.
Asymmetry of Magneti
zation Curves of Textured BSCCO / Gokhfeld D.M.
Balaev
D.A. [et al.]> // Physica C: Superconductivity and its Applications. - 2010. -
Vol. 470
,
№ SUPPL.1
. - P. 870-872
DOI
10.1016/j.physc.2009.10.049
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Доп.точки доступа:
Gokhfeld, D.M.;
Balaev
, D.A.; Popkov, S.I.; Shaykhutdinov, K.A.; Petrov, M.I.
}
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16.
Ba0.6K0.4BiO3 single crystal
as a multiple Josephson system: New coherent effect? / L. N. Zherikhina [et al.]> //
Journal of Physics: Conference Series. - 2012. -
Vol. 400
,
Pt. 2
. - Ст. 022146. - P. ,
DOI
10.1088/1742-6596/400/2/022146 . - ISSN 1742-6588
Кл.слова (ненормированные):
Antiphase
--
Coherent effect
--
Electric transport
--
High-T
--
Inhomogeneous superconductors
--
Josephson
--
Josephson junctions
--
Josephson tunneling
--
Non-linear I-V
--
Polycrystalline samples
--
Superconducting gaps
--
Superconducting state
--
Low temperature effects
--
Low temperature engineering
--
Magnetic fields
--
Superconductivity
--
Single crystals
Аннотация:
The existence of space inhomogeneous superconductor insulator state (SISIS) found out earlier in polycrystalline samples of high-Tc system Ba0.6K0.4BiO3 (Tc?30 K) is confirmed on Ba0.6K0.4BiO3 single crystal. At T* (T*<Tc, T*?17 K) the transition from the homogeneous superconducting state into the SISIS occurs. SISIS is characterized by the appearance of two gapes on the Fermi surface: semi- and superconducting, that are modulated in space in antiphase, the electric transport between superconducting regions being carried out due to Josephson tunneling. Thus the whole sample becomes a multiple Josephson system. Nonlinear I-V curves, depended on temperature and magnetic field, that are typical to a Josephson system, are observed on Ba0.6K0.4BiO3 single crystal at temperatures below T*. Besides, a step like peculiarity at the values of voltage of the order of one and two superconducting gaps shows up. These peculiarities are suppressed by magnetic field much earlier then critical current. Perhaps the last phenomenon is the consequence of "coherent" state of several successive Josephson junctions, appeared in the exfoliation state. В© Published under licence by IOP Publishing Ltd.
Scopus
Доп.точки доступа:
Zherikhina, L. N.; Tskhovrebov, A. M.; Klinkova, L. A.;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Popkov, S. I.; Попков, Сергей Иванович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; International Conference on Low Temperature Physics(26 ; 2011 ; Aug. ; 1-17 ; Beijing, China)
}
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17.
Bacterial ferrihydrite nanoparticles:
preparation, magnetic properties, and application in medicine / S. V. Stolyar [et al.]> // J. Supercond. Novel Magn. - 2018. -
Vol. 31
,
Is. 8
. - P. 2297-2304,
DOI
10.1007/s10948-018-4700-1. - Cited References: 37. - The electron microscopy examination was carried out at the Center for Collective Use of the Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences (Krasnoyarsk, Russia). . - ISSN 1557-1939
Кл.слова (ненормированные):
Nanoparticles
--
Ferrihydrite
--
Magnetic properties
--
Drug delivery
Аннотация:
Nanoparticles of antiferromagnetically ordered materials acquire the uncompensated magnetic moment caused by defects and surface effects. A bright example of such a nano-antiferromagnet is nanoferrihydrite consisting of particles 2–5 nm in size, the magnetic moment of which amounts to hundreds of Bohr magnetons per particle. We present a brief review of the studies on magnetic properties of ferrihydrite produced by bacteria. Special attention is focused on the aspects of possible biomedical applications of this material, i.e., the particle elimination, toxicity, and possible use for targeted drug delivery.
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Держатели документа:
Siberian Federal University, Krasnoyarsk, Russian Federation
Krasnoyarsk Scientific Center, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian Clinical Center, Krasnoyarsk, Russian Federation
Scientific Research Institute of Medical Problems of the North, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Ladygina, V. P.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Popkov, S. I.; Попков, Сергей Иванович; Bayukov, O. A.; Баюков, Олег Артемьевич; Knyazev, Yu. V.; Князев, Юрий Владимирович; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Dobretsov, K. G.; Morozov, E. V.; Морозов, Евгений Владимирович; Falaleev, O. V.; Фалалеев, Олег Владимирович; Inzhevatkin, E. V.; Kolenchukova, O. A.; Chizhova, I. A.
}
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18.
Bacterial ferrihydrite nanoparticles:
preparation, magnetic properties, and application in medicine / S. V. Stolyar [и др.]> //
Moscow Int. Symp. on Magnet. (MISM-2017) : 1-7 July 2017 : book of abstracts. - 2017. - Ст. 3RP-O-10. - P. 417. - Cited References: 8. - Support by the Special Program for Siberian Federal University of the Ministry of Education and Science of the Russian Federation is acknowledged
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Доп.точки доступа:
Stolyar, S. V.; Столяр, Сергей Викторович;
Balaev
, D. A.; Балаев, Дмитрий Александрович; Ladygina, V. P.; Dubrovskiy, A. A.; Дубровский, Андрей Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Popkov, S. I.; Попков, Сергей Иванович; Bayukov, O. A.; Баюков, Олег Артемьевич; Yaroslavtsev, R. N.; Ярославцев, Роман Николаевич; Volochaev, M. N.; Волочаев, Михаил Николаевич; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Dobretsov, K. G.; Falaleev, O.V.; Chizhova, I. A.; Moscow International Symposium on Magnetism(7 ; 2017 ; Jul. ; Moscow); Московский государственный университет им. М.В. Ломоносова; Российский фонд фундаментальных исследований
}
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19.
Biosyntesis of magnetic
nanocomposites using sulfate-reducing bacteria / S. V. Semenov, Yu. V. Knyazev, D. A.
Balaev
[et al.]> //
Магнитные материалы. Новые технологии : тез. докл. IX Байкал. междунар. конф. BICMM-2023 / чл. прогр. ком.: S. S. Aplesnin [et al.] ; чл. орг. ком. R. S. Iskhakov [et al.]. - Иркутск, 2023. - P. 170,
DOI
10.26516/978-5-9624-2178-0.2023.1-207. - Библиогр.: 2 . - ISBN 978-5-00133-051-6
Перевод заглавия:
Биологический синтез магнитных нанокомпозитов с помощью сульфатредуцирующих бактерий
Материалы конференции
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Материалы конференции
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Держатели документа:
Kirensky Institute of Physics SB RAS
Tomsk State University
Доп.точки доступа:
Aplesnin, S. S. \чл. прогр. ком.\; Аплеснин, Сергей Степанович;
Balaev
, D. A. \чл. прогр. ком.\; Балаев, Дмитрий Александрович; Ovchinnikov, S. G. \чл. прогр. ком.\; Овчинников, Сергей Геннадьевич; Iskhakov, R. S. \чл. орг. ком.\; Исхаков, Рауф Садыкович; Semenov, S. V.; Семёнов, Сергей Васильевич; Knyazev, Yu. V.; Князев, Юрий Владимирович;
Balaev
, D. A.; Karnachuk, O. V.; Ikkert, O. P.; Байкальская международная конференция "Магнитные материалы. Новые технологии"(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Магнитные материалы. Новые технологии", Байкальская международная конференция(9 ; 2023 ; сент. ; 11-14 ; Байкальск); "Magnetic materials. New tecnologies", Baikal International Conference(9 ; 2023 ; Sept. ; 11-14 ; Baikalsk); Иркутский государственный университет
}
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20.
Change in the
magnetic properties of nanoferrihydrite with an increase in the volume of nanoparticles during low-temperature annealing / D. A.
Balaev
[et al.]> // Phys. Solid State. - 2016. -
Vol. 58
,
Is. 9
. - P. 1782-1791,
DOI
10.1134/S1063783416090092. - Cited References: 32. - This study was supported by the Ministry of Education and Science of the Russian Federation within the State Task for 2014-2016. . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
FERRIHYDRITE NANOPARTICLES
BACTERIAL FERRIHYDRITE
FERRITIN
HYSTERESIS
MOSSBAUER
ORIGIN
Аннотация:
The results of the investigation into the effect of low-temperature annealing of a powder of nanoparticles of bacterial ferrihydrite on its magnetic properties have been presented. It has been found that an increase in the time (up to 240 h) and temperature (in the range from 150 to 200°C) of annealing leads to a monotonic increase in the superparamagnetic blocking temperature, the coercive force, and the threshold field of the opening of the magnetic hysteresis loop (at liquid-helium temperatures), as well as to an increase in the magnetic resonance line width at low temperatures and in the magnetic susceptibility at room temperature. At the same time, according to the results of the analysis of the Mossbauer spectra, the annealing of ferrihydrite does not lead to the formation of new iron oxide phases. Most of these features are well consistent with the fact that the low-temperature annealing of ferrihydrite causes an increase in the size of nanoparticles, which is confirmed by the results of transmission electron microscopy studies. © 2016, Pleiades Publishing, Ltd.
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Публикация на русском языке
Изменение магнитных свойств наноферригидрита в ходе низкотемпературного отжига, обусловленное ростом объeма наночастиц [Текст] / Д. А. Балаев [и др.] // Физ. тверд. тела : Физико-технический институт им. А. Ф. Иоффе РАН, 2016. - Т. 58 Вып. 9. - С. 1724–1732
Держатели документа:
Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/38, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodny pr. 79, Krasnoyarsk, Russian Federation
International Scientific Centre for Organism Extreme States Research, Presidium of the Krasnoyarsk Scientific Centre of the Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation
International Laboratory of High Magnetic Fields and Low Temperatures, ul. Gajowicka 95, Wroclaw, Poland
Доп.точки доступа:
Balaev
, D. A.; Балаев, Дмитрий Александрович; Krasikov, A. A.; Красиков, Александр Александрович; Stolyar, S. V.; Столяр, Сергей Викторович; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Ladygina, V. P.; Yaroslavtsev, R. N.; Bayukov, O. A.; Баюков, Олег Артемьевич; Vorotynov, A. M.; Воротынов, Александр Михайлович; Volochaev, M. N.; Волочаев, Михаил Николаевич; Dubrovskiy, A. A.; Дубровский, Андрей Александрович
}
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