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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.
A study of
the hysteresis property of the current voltage characteristic in high-temperature superconductors / М. И. Петров [et al.]> // Solid State Commun. - 1992. -
Vol. 82
,
Is. 6
. - P. 453-456,
DOI
10.1016/0038-1098(92)90748-X. - Cited References: 21 . - ISSN 0038-1098
РУБ
Physics, Condensed Matter
Рубрики:
HIGH-TC SUPERCONDUCTORS
YBA2CU3O7-X
FILMS
Аннотация:
Temperature measurements of current-voltage characteristics (CVC) of the (Y, Lu)1Ba2Cu3O7-delta high-temperature superconductor have been performed. Analysis of the data shows that CVC of HTSC is mainly formed by two mechanisms: the creep of the Abrikosov vortices inside the crystallites and the Andreev reflection of the carriers within the metal character boundary between the crystallites.
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Держатели документа:
Институт физики им. Л.В. Киренского СО РАН
Доп.точки доступа:
Петров, Михаил Иванович;
Petrov
, M. I.; Krivomazov, S. N.; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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5.
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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6.
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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7.
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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8.
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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9.
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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10.
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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11.
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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12.
Balaev, D. A.
Correlation between magnetoresistance and magnetization hysteresis in a granular high-T C superconductor: Impact of flux compression in the intergrain medium / D. A. Balaev, S. V. Semenov, M. I.
Petrov
> // J. Supercond. Nov. Magn. - 2014. -
Vol. 27
,
Is. 6
. - P. 1425-1429,
DOI
10.1007/s10948-014-2491-6. - Cited References: 27 . - ISSN 1557-1939. - ISSN 1557-1947
РУБ
Physics, Applied + Physics, Condensed Matter
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTOR
JOSEPHSON MEDIUM
CRITICAL-STATE
YBA2CU3O7-DELTA
FIELDS
BEHAVIOR
HTSC
COMPOSITES
RESISTANCE
MOTION
Кл.слова (ненормированные):
Granular superconductor
--
Josephson medium
--
Effective field
--
Magnetoresistance
--
Magnetization hysteresis
Аннотация:
The correlation between experimental magnetic field dependences of magnetoresistance and magnetization hysteresis in granular YBa2Cu3O7 is established. Within the proposed approach, magnetoresistance is assumed to be determined by the effective field in the intergrain boundaries the ensemble of which is considered to be a Josephson medium. The effective field in the intergrain medium can be written in the form B (eff)(H)=H-4 pi M(H)x alpha, where alpha is the parameter of averaged demagnetizing factors of grains and the degree of flux compression. A comparison of experimental magnetoresistance R(H) and magnetization M(H) hysteresis dependences obtained at different external magnetic field sweep rates yields the value alpha similar to 10, which is caused by the flux compression between grains. The proposed model describes well most of the features of the magnetoresistance hysteresis in granular high-T (C) superconductors.
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Доп.точки доступа:
Semenov, S. V.; Семёнов, Сергей Васильевич;
Petrov
, M. I.; Петров, Михаил Иванович; Балаев, Дмитрий Александрович
}
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13.
Balaev, D. A.
Dominant influence of the compression effect of a magnetic flux in the intergranular medium of a granular high-temperature superconductor on dissipation processes in an external magnetic field / D. A. Balaev, S. V. Semenov, M. I.
Petrov
> // Physics of the Solid State. - 2013. -
Vol. 55
,
Is. 12
. - P. 2422-2430,
DOI
10.1134/S1063783413120044 . - ISSN 1063-7834
Аннотация:
Experiments have been presented that demonstrate the effect of the compression of a magnetic flux in grain boundaries of a granular high-temperature superconductor in an external magnetic field on the dissipation processes. The compression of the magnetic flux is associated with the diamagnetic behavior of superconducting grains and the existence of a Josephson medium in grain boundaries. Under these conditions, grain boundaries are in an effective magnetic field that depends on the magnetic state (magnetization) of the superconducting grains. Based on the analysis of experimental data (dependences of the electrical resistance R and magnetization on the magnetic field H and temperature T, as well as current-voltage characteristics), the conclusion has been drawn that it is the temperature evolution of the effective magnetic field in the intergranular medium which primarily determines the behavior of the dependences R(T) in weak external magnetic fields of no more than ?103 Oe. This should be taken into account in the interpretation of experiments on the magnetoresistance effect in granular high-temperature superconductors in terms of different theories. The conclusion drawn here also implies a significant correction of the previously obtained results.
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Публикация на русском языке
Балаев, Дмитрий Александрович. Доминирующее влияние эффекта сжатия магнитного потока в межгранульной среде гранулярного ВТСП на процессы диссипации во внешнем магнитном поле / Д. А. Балаев // Физика твердого тела. - 2013. - Т. 55, Вып. 12. - С. 2305-2312
Доп.точки доступа:
Semenov, S. V.; Семёнов, Сергей Васильевич;
Petrov
, M. I.; Петров, Михаил Иванович; Балаев, Дмитрий Александрович
}
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14.
Characteristics of current
flow in composites made from a high-temperature superconductor and the low-temperature superconducting metal oxide Ba(PbBi)O-3 / M. I.
Petrov
[et al.]> // Phys. Solid State. - 1997. -
Vol. 39
,
Is. 3
. - P. 362-368,
DOI
10.1134/1.1130134. - Cited References: 21 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
BAPB1-XBIXO3 SYSTEM
YBA2CU3O7-DELTA
Аннотация:
Composites are prepared from a high-temperature superconductor with the 1-2-3 structure and the low-temperature oxide BaPb3/4Bi1/4O3 with various volume concentrations of the high-temperature and low-temperature superconductors. The temperature dependences of the electrical resistivities and critical current densities of the composites are measured. It is shown experimentally that these composites comprise a synthetically created network of Josephson weak links (with a specified degree of coupling). (C) 1997 American Institute of Physics.
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Доп.точки доступа:
Petrov
, M. I.; Петров, Михаил Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Ospishchev, S. V.; Оспищев С. В.; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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15.
Composite materials on
high-T-c superconductors and BaPbO3, Ag basis / A. G. Mamalis [et al.]> //
Physica C. - 2001. -
Vol. 364
. - P. 174-177,
DOI
10.1016/S0921-4534(01)00749-3. - Cited References: 9 . - ISSN 0921-4534
РУБ
Physics, Applied
Кл.слова (ненормированные):
composite high-T-c superconductors
--
superconducting fault current limiter
--
Composite high-Tc superconductors
--
Superconducting fault current limiter
--
Composite materials
--
Electric fault currents
--
Interfaces (materials)
--
Magnetic variables measurement
--
Mathematical models
--
Scanning electron microscopy
--
Spectrometry
--
Superconducting transition temperature
--
Superconductivity
--
X ray diffraction analysis
--
Solid state reactions
--
High temperature superconductors
Аннотация:
The preparation., processing and characterization of the composite materials on high-T-c superconductor (HTSC) basis, YBa2Cu3O7/Ag and Y0.75Lu0.25Ba2Cu3O7/BaPbO3, is reported. The initial components YBa2Cu3O7 and BaPbO3 were prepared by the standard solid state reaction technique. The microstructures of the samples were observed by scanning electron microscopy. whilst the XRD paterns of the composites HTSC+Ag and HTSC+BaPbO3 revealed the 123 superconducting phase and the Ag or BaPbO3 structure. The chemical compositions of the powders and the interface zone were found by employing energy dispersive spectrometry. The resistive and magnetic measurements of the composites indicated the transition temperature 93.5 K. Application of such composite materials in the construction of a superconducting fault current limiter model is reported. (C) 2001 Elsevier Science B.V. All rights reserved.
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Держатели документа:
Natl Tech Univ Athens, Dept Mech Engn, Mfg Technol Div, Athens 10682, Greece
Russian Acad Sci, Kiensky Inst Phys, Krasnoyarsk, Russia
ИФ СО РАН
Manufacturing Technology Division, Department of Mechanical Engineering, National Technical University of Athens, 42, 28th October Ave., 10682 Athens, Greece
Kirensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Mamalis, A. G.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич;
Petrov
, M. I.; Петров, Михаил Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaihutdinov, K. A.; Gohfeld, D. M.; Kharlamova, S. A.; Vottea, I. N.; International Conference on New Theories, Discoveries and Applications of Superconductors and Related Materials(3 ; 2001 ; Jan. 15-19 ; Honolulu, Hawaii)
}
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16.
Compression of a
magnetic flux in the intergrain medium of a YBa2Cu3O7 granular superconductor from magnetic and magnetoresistive measurements / D. A. Balaev [et al.]> // J. Appl. Phys. - 2011. -
Vol. 110
,
Is. 9
. - Ст. 93918,
DOI
10.1063/1.3657775. - Cited References: 21. - We thank V. V. Val'kov and A. D. Balaev for useful discussions of the results and I. Nemtsev for microscopic study of the samples. The study was supported by the Program of the Russian Academy of Sciences No. 5, Project No. 7. . - ISSN 0021-8979
РУБ
Physics, Applied
Рубрики:
HIGH-TEMPERATURE SUPERCONDUCTORS
CRITICAL-CURRENT-DENSITY
CRITICAL-STATE MODEL
CRITICAL CURRENTS
JOSEPHSON MEDIUM
FIELD
TRANSITION
Кл.слова (ненормированные):
Effective field
--
External fields
--
Field dependence
--
Field induced
--
Granular superconductors
--
Inter-grain
--
Josephson
--
Magnetoresistive
--
Space between
--
Superconducting grains
--
Transport currents
--
Electric resistance
--
Magnetic flux
--
Magnetic moments
--
Superconductivity
--
Superconducting materials
Аннотация:
A method to determine a value of the effective field in the intergrain medium of a granular superconductor is proposed. The space between superconducting grains is considered to be a Josephson medium where passage of the transport current causes dissipation and the effective field is superposition of external field H and the field induced by magnetic moments of superconducting grains. The method proposed is based on the comparison of hysteresis field dependences of magnetoresistance and magnetization and their relaxation at H=const. By the example of granular YBa2Cu3O7, it is shown that, in the region of weak fields, the effective field in the intergrain medium exceeds by far the external field, i.e., compression of a magnetic flux occurs. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3657775]
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Держатели документа:
[Balaev, D. A.
Popkov, S. I.
Semenov, S. V.
Shaykhutdinov, K. A.
Shabanov, A. V.
Petrov
, M. I.] Russian Acad Sci, Kirensky Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia
[Balaev, D. A.
Sabitova, E. I.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
ИФ СО РАН
Kirensky Institute of Physics, Russian Academy of Sciences, Siberian Branch, 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; Sabitova, E. I.; Semenov, S. V.; Семенов, Сергей Васильевич; Shaykhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Shabanov, A. V.; Шабанов, Александр Васильевич;
Petrov
, M. I.; Петров, Михаил Иванович
}
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17.
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.
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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
}
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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
}
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19.
Controlled magnetoresistance in
Y3/4Lu1/4Ba2Cu3O7-CuO composites at 77 K / D. A. Balaev [et al.]> // Tech. Phys. Lett. - 2003. -
Vol. 29
,
Is. 7
. - P. 578-581,
DOI
10.1134/1.1598555. - Cited References: 17 . - ISSN 1063-7850
РУБ
Physics, Applied
Рубрики:
SUPERCONDUCTOR
Аннотация:
We have studied the low-temperature magnetoresistance of Y3/4Lu1/4Ba2Cu3O7-CuO composites obtained by fast sintering technique and established a relation between the probing to critical current density ratio j/j(c) and the shape of the magnetoresistance curve rho(H). For j/j(c) 1, the electric resistance arises at a threshold value of the magnetic field strength H-c. For j/j(c) greater than or equal to 1, a linear variation of rho(H) at 77 K in the range from 0 to 14 Oe can be provided by selecting the CuO content (in the 15-30 vol % interval) and the j value (in the 0.003-0.2 A/cm(2) range). In the latter case, the slope drho/dH (i.e., the sensitivity of the electric resistivity with respect to the magnetic field) is 1-20 mOmega cm/Oe and the relative field-induced increase in the resistivity rho(0)
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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; Shaihutdinov, K. A.; Popkov, S. I.; Попков, Сергей Иванович;
Petrov
, M. I.; Петров, Михаил Иванович
}
Найти похожие
20.
Critical current in
composites consisting of a high-temperature superconductor and a semiconductor as a function of the carrier concentration / M. I.
Petrov
[et al.]> // Doklady Physics. - 1996. -
Vol. 41
,
Is. 2
. - P. 59-61 . - ISSN 1028-3358
Scopus
,
РИНЦ
Публикация на русском языке
Критический ток в композитах ВТСП + полупроводник с различной концентрацией носителей [Текст] / М. И. Петров [и др.] // Доклады Академии наук. - 1996. - Т. 346 № 5. - С. 616-618
Доп.точки доступа:
Петров, Михаил Иванович;
Petrov
, M. I.; Balaev, D. A.; Балаев, Дмитрий Александрович; Шайхутдинов, Кирилл Александрович; Shaikhutdinov, K. A.; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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