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1.
Acoustooptic and elastic
properties of NaBi(WO4)2 and LiBi(MoO4)2crystals / K. S. Aleksandrov [et al.]> //
Russ. Ultrason. - 1988. -
Vol. 18
,
Is. 3
. - P. 168-171 . - ISSN 0048-8828
Кл.слова (ненормированные):
Acoustooptical Devices--Materials
--
Elasticity
--
Lithium Compounds
--
Sodium Compounds
--
Acoustooptic Properties
--
Bulk
Acoustic Waves
--
Elastic Properties
--
Crystals
Аннотация:
In recent years interest has been shown in crystals with the scheelite structure (point symmetry group 4/m) as promising materials for acoustooptic devices. However, nearly all the work done so far has been on the NaBi(MoO4)2 and PbMoO4 crystals. In this paper the authors give the results of a study of the elastic and acoustooptic properties of NaBi(WO4)2 and LiBi(MoO4)2 crystals from a series of isomorphic compounds with the scheelite structure carried out in order to determine the extent of the changes in the elastic and acoustooptic properties of this series of crystals when the structural elements are changed.
Scopus
Держатели документа:
USSR Acad of Sciences, Russian Federation
Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Burkov, S. I.; Samkov, A. V.; Kholov, A.; Khafizov, S.Kh.; Shabanova, L. A.; Klevtsov, P. V.; Красноярский государственный университет
}
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2.
Fedorov, A. S.
Analysis of hydrogen adsorption in the
bulk
and on the surface of magnesium nanoparticles / A. S. Fedorov, M. V. Serzhantova, A. A. Kuzubov> // J. Exp. Theor. Phys. - 2008. -
Vol. 107
,
Is. 1
. - P. 126-132,
DOI
10.1134/S1063776108070121. - Cited References: 15. - This study was supported financially by the Russian Foundation for Basic Research ( project no. 06-02-16132). The authors are also grateful to the Institute of Computer Modeling of the Siberian Branch of the Russian Academy of Science for providing a cluster computer on which all quantum-chemistry calculations were performed. . - ISSN 1063-7761
РУБ
Physics, Multidisciplinary
Рубрики:
MOLECULAR-DYNAMICS
TRANSITION
METALS
Кл.слова (ненормированные):
Adsorption
--
Gas adsorption
--
Hydrogen
--
Light metals
--
Magnesium
--
Nonmetals
--
Hydrogen adsorption
--
Magnesium hydrides
--
Magnesium printing plates
Аннотация:
The stability of magnesium hydride (MgH (x) ) nanoparticles (x = 0.5,...,2) is investigated using ab initio calculations. It is shown that for a nanoparticle diameter of D similar to 5 nm, the internal pressure becomes lower than 3 kbar; for this reason, the structure of hydride nanoparticles coincides with the structure of this hydride in crystalline form. It is found that the phase of partly saturated MgH (x) hydrides (x < 2) must decompose into the phase of pure hcp magnesium and the alpha phase of MgH(2). The frequencies of jumps of hydrogen atoms within the hcp phase of magnesium and in the alpha phase of MgH(2) are calculated; it is shown that slow diffusion of hydrogen in magnesium is due to the large height of potential barriers for motion of hydrogen within MgH(2). To attain high diffusion rates, the structures of Mg(53)Sc and Mg(53)Ti crystals and their hydrides are calculated. It is found that the frequency of jumps of H atoms in Mg(53)ScH(108) near the Sc atoms does not noticeably change as compared to the frequency of jumps in the alpha phase of MgH(2), while the frequency of jumps in Mg(53)TiH(108) near Ti atoms is higher by approximately a factor of 2.5 x 10(6). This means that diffusion in manganese hydride with small admixtures of titanium atoms must be considerably eased. Chemical dissociation of hydrogen molecules on the (0001) surface of hcp magnesium, on the given surface with adjoined individual Ti atoms, and on the surface of a one-layer titanium cluster on the given surface of magnesium is investigated. It is found that dissociation of hydrogen at solitary titanium atoms, as well as on the surface of a Ti cluster, is facilitated to a considerable extent as compared to pure magnesium. This should also sharply increase the hydrogen adsorption rate in magnesium nanoparticles.
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Держатели документа:
[Fedorov, A. S.
Kuzubov, A. A.] Russian Acad Sci, Siberian Branch, Kirenskii Inst Phys, Krasnoyarsk 660036, Russia
[Serzhantova, M. V.
Kuzubov, A. A.] Siberian Fed Univ, Krasnoyarsk 660028, Russia
ИФ СО РАН
Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Siberian Federal University, Akademgorodok, Krasnoyarsk, 660028, Russian Federation
Доп.точки доступа:
Serzhantova, M. V.; Kuzubov, A. A.; Кузубов, Александр Александрович; Федоров, Александр Семенович
}
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3.
Aplesnin, S. S.
Anomalies in magnetoresistance and in the
bulk
modulus for ferromagnetics with four-spin exchange interaction on the Kondo lattice / S. S. Aplesnin, N. I. Piskunova> // J. Phys.: Condens. Matter. - 2006. -
Vol. 18
,
Is. 29
. - P. 6859-6868,
DOI
10.1088/0953-8984/18/29/023. - Cited References: 29 . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
MIXED-VALENCE MANGANITES
PHASE-SEPARATION
LA1-XSRXMNO3
BEHAVIOR
PECULIARITIES
TRANSITION
Кл.слова (ненормированные):
Elastic moduli
--
Electric resistance
--
Ferromagnetism
--
Function evaluation
--
Paramagnetism
--
Transceivers
--
Adiabatic approximation
--
Kondo lattice
--
Paramagnetic state
--
Ring exchange
--
Magnetoresistance
Аннотация:
The temperature dependence of resistivity and the
bulk
modulus are calculated on the Kondo lattice, with ring exchange between localized spins, using the spin-polaron and adiabatic approximation. Peak and zero values of the
bulk
modulus as functions of temperature and concentration are determined below the temperature of the transition to the paramagnetic state. The effects of the nearest order between transverse spin components and a value of the ring exchange between localized spins on magnetoresistivity are estimated.
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Держатели документа:
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
MF Reshetneva Aircosm Siberian State Univ, Krasnoyarsk 660014, Russia
ИФ СО РАН
L v Kirenskii Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
M F Reshetneva Aircosmic Siberian State University, Krasnoyarsk, 660014, Russian Federation
Доп.точки доступа:
Piskunova, N. I.; Аплеснин, Сергей Степанович
}
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4.
Bulk
acoustic waves
propagation in Li2B4O7 piezoelectric crystals under the static uniaxial mechanical pressure / K. S. Aleksandrov [et al.]> //
Proceedings of the Annual IEEE International Frequency Control Symposium / Annual frequency control symposium (54 ; 2000 ; Jun. ; 7-9 ; Kansas, MO). - 2000. - P. 214-217. - Cited References: 8 . - ISBN 01616404
Кл.слова (ненормированные):
Acoustic wave transmission
--
Acoustic wave velocity
--
Elasticity
--
Lithium compounds
--
Mathematical models
--
Permittivity
--
Piezoelectricity
--
Pressure effects
--
Single crystals
--
Electromechanical constants
--
Piezoelectric crystal
--
Piezoelectric materials
Аннотация:
The influence of uniaxial mechanical stresses on
bulk
acoustic waves velocity in piezoelectric crystals Li2B4O7 has been investigated. Electromechanical constants have determined.
Scopus
Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Turchin, P. P.; Sorokin, B. P.; Karpovich, A. A.; Nefedov, V. A.; Annual frequency control symposium(54 ; 2000 ; Jun. ; 7-9 ; Kansas, MO)
}
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5.
Bulk
CoNiFe-SiB amorphous
and nanostructured alloys produced by plasma spray deposition and dynamic compaction: formation of soft magnetic properties / E. A. Denisova> //
Phys. Procedia. - 2015. -
Vol. 75
. - P. 1238-1243,
DOI
10.1016/j.phpro.2015.12.136. - Cited References: 9. - This work was supported by Russian Foundation of Basic Research 15-08-06673 and RFBR-KRFS 15-42-04171 . - ISSN 1875-3892
Перевод заглавия:
CoNiFe-SiB, полученные методами плазменного напыления и динамического компактирования: формирование магнитомягких свойств
Кл.слова (ненормированные):
bulk
nanostructured materials
--
dynamic compaction
--
plasma spray deposition
--
magnetic properties
Аннотация:
The
bulk
nanostructured Co58Ni10Fe5B16Si11 alloys were prepared by dynamic compaction and plasma spray deposition techniques. The investigation of structure and magnetic properties of
bulk
samples was carried out by X-ray diffraction, electron microscopy and correlation magnetometry. The
bulk
samples produced by both methods can be characterized as a heterophase system. The highest value of permeability 20 · 103 for plasma spraying coating is achieved when volume fraction of nanocrystalline phase with Curie temperature Tc ∼ 640 K is increased to 30%. The magnetic characteristics, such as the saturation magnetization, the Bloch constant, the local magnetic anisotropy field, the ferromagnetic resonance linewidth, and the coercivity remain unchanged after both compaction techniques. It was shown that the plasma spraying method allows to obtain
bulk
magnetically soft materials with magnetic parameters that are not inferior to the characteristics of a thermally treated rapidly quenched ribbon with the same composition.
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Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Кузовникова, Людмила Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kuzovnikov, A.; Lepeshev, A. A.; Nemtsev, I. V.; Немцев, Иван Васильевич; Saunin, V. N.; Telegin, S. V.; Bondarenko, G. N.; Mal'tsev, V. K.; Мальцев, Вадим Константинович; International Conference on Magnetism(20 ; 2015 ; Jul ; 5-10 ; Barselona, Spain)
}
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6.
Bulk
CoNiFe-SiB amorphous
and nanostructured alloys produced by plasma spray deposition and dynamic compaction: formation of soft magnetic properties / E. A. Denisova [et al.]> //
20th Int. Conf. on Magnetism (ICM-2015) : book of abstracts. - 2015. - Ст. TU.H-P55
Перевод заглавия:
Объемные аморфные и наноструктурированные сплавы CoNiFe-SiB, полученные плазменным напылением и динамическим компактированием: формирование магнитомягких свойств.
Материалы конференции
Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Кузовникова, Людмила Александровна; Kuzovnikov, A. A.; Кузовников А. А.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Lepeshev, A. A.; Лепешев, Анатолий Александрович; Nemtsev, I. V.; Немцев, Иван Васильевич; Saunin, V. N.; Telegin, S. V.; International Conference on Magnetism(20 ; 2015 ; Jul ; 5-10 ; Barselona, Spain)
}
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7.
Bulk
nanostructured materials
produced by dynamic compaction of composite Co-P/Cu and Al2O3/Co-P core-shell particles / L. A. Kuzovnikova [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. P10.19. - P. 487. - This work was supported by Russian Foundation of Basic Research 15-08-06673, 16-03-00256, 16-03-00969 and RFBR-KRFS 15-42-04171 . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
dynamic compaction
--
nanostructured materials
--
magnetic properties
Доп.точки доступа:
Kuzovnikova, L. A.; Denisova, E. A.; Денисова, Елена Александровна; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kuzovnikov, A. A.; Nemtsev, I. V.; Немцев, Иван Васильевич; Mal'tsev, V. K.; Мальцев, Вадим Константинович; Институт физики им. Л.В. Киренского Сибирского отделения РАН
Нет сведений об экземплярах
}
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8.
Mankov, Yu. I.
Bulk
plasma waves in a randomly inhomogeneous conductor / Yu. I. Mankov> // Phys. Solid State. - 2012. -
Vol. 54
,
Is. 7
. - P. 1323-1331,
DOI
10.1134/S1063783412070268. - Cited References: 27 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Рубрики:
VOLUME PLASMONS
DISPERSION
PLASMAVERLUSTES
SURFACE
Аннотация:
The modification of the spectrum and damping of
bulk
plasma waves due to three-dimensional random inhomogeneities of the density of a degenerate electron gas in a conductor have been investigated using the averaged Green’s function method. The dependences of the frequency and damping of the averaged plasma waves, as well as the position ν m and width Δν of the peak of the imaginary part of the Fourier trans-form of the averaged Green’s function, on the wave vector k have been determined in the self-consistent approximation, which makes it possible to take into account multiple scattering of plasma waves by inhomogeneities. It has been found that, in the long-wavelength region of the spectrum, the decrease revealed in the frequency of the plasma waves is caused by the inhomogeneities, which agrees qualitatively with the behavior of the position of the peak ν m . In the range of large values of the correlation length of inhomogeneities and small values of k, the damping of the plasma waves tends to zero, whereas the width of the peak Δν remains finite, which is due to the nonuniform broadening. A comparison with the data of numerical calculations has been performed.
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Публикация на русском языке
Маньков, Юрий Иннокентьевич. Объемные плазменные волны в случайно-неоднородном проводнике [Текст] / Ю. И. Маньков // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 7. - С. 1249-1255
Доп.точки доступа:
Маньков, Юрий Иннокентьевич
}
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9.
Cobalt-based
bulk
nanostructured
materials prepared via the dynamic compacting of core–shell composite particles / E. A. Denisova [et al.]> // Bull. Russ. Acad. Sci. Phys. - 2016. -
Vol. 80
,
Is. 11
. - P. 1377-1380,
DOI
10.3103/S1062873816110198. - Cited References: 12. - This work was supported by the Russian Foundation for Basic Research, project nos. 15-08-06673, 16-03-00969, and RFBR and KRFS 15-42-04171. . - ISSN 1062-8738
Кл.слова (ненормированные):
Composite materials
--
Bulk
nanostructured materials
--
Chemical deposition
--
Cobalt-based
--
Composite particles
--
Dynamic compaction
--
Magnetic characteristic
--
Nano-structured
--
Structural and magnetic characteristics
--
Powders
Аннотация:
Bulk
nanostructured Co–P/Cu and Al2O3/Co–P composites are fabricated via dynamic compaction. The initial core–shell particles are synthesized by means of chemical deposition. Structural and magnetic characteristics of the composites are investigated. It is shown that the use of composite particles allows homogeneous compacts with the structure and magnetic characteristics of initial powders to be obtained. © 2016, Allerton Press, Inc.
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Публикация на русском языке
Объемные наноструктурированные материалы на основе кобальта, полученные динамическим компактированием композиционных частиц “ядро–оболочка” [Текст] / Е. А. Денисова [и др.] // Изв. РАН. Сер. физич. - 2016. - Т. 80 № 11. - С. 1555-1558
Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Krasnoyarsk Institute of Railway Engineering, Krasnoyarsk, Russian Federation
ZAO Pulsed Technologies, Krasnoyarsk, Russian Federation
Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Denisova, E. A.; Денисова, Елена Александровна; Kuzovnikova, L. A.; Iskhakov, R. S.; Исхаков, Рауф Садыкович; Kuzovnikov, A. A.; Nemtsev, I. V.; Mal'tsev, V. K.; Мальцев, Вадим Константинович
}
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10.
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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11.
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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12.
Critical currents in
bulk
Y3/4Lu1/4Ba2Cu3O7 + BaPbO3 composites / M. I. Petrov [et al.]> // Physics Letters, Section A: General, Atomic and Solid State Physics. - 1997. -
Vol. 237
,
Is. 1-2
. - P. 85-89
Рубрики:
HIGH-TC-SUPERCONDUCTORS
WEAK LINKS
JUNCTIONS
Кл.слова (ненормированные):
Bulk
composites
--
Critical current density
--
Network of weak S-N-S links
--
YBaCuO + BaPbO3
--
YBaCuO+BaPbO3
bulk
composites
--
network of weak S-N-S links
--
critical current density
Аннотация:
Bulk
composites Y3/4Lu1/4Ba2Cu3O7 + BaPbO3 with BaPbO3 volume content of 0-60% have been prepared. Temperature dependences of resistance and critical current density Jc(T) are presented. The best agreement of experimental Jc(T) with theory has been reached for the Gunsenheimer-Schussler-Kummel consideration of superconductor-normal metal-superconductor (S-N-S) junctions in the "clean" limit. В© 1997 Elsevier Science B.V.
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Доп.точки доступа:
Петров, Михаил Иванович; Petrov, M. I.; Balaev, D. A.; Балаев, Дмитрий Александрович; Ospishchev, S. V.; Оспищев С. В.; Шайхутдинов, Кирилл Александрович; Shaikhutdinov, K. A.; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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13.
Critical currents in
bulk
Y3/4Lu1/4Ba2Cu3O7+BaPbO3 composites / M. I. Petrov [et al.]> // Phys. Lett. A. - 1997. -
Vol. 237
,
Is. 1-2
. - P. 85-89,
DOI
10.1016/S0375-9601(97)00694-4. - Cited References: 24 . - ISSN 0375-9601
РУБ
Physics, Multidisciplinary
Рубрики:
HIGH-TC-SUPERCONDUCTORS
WEAK LINKS
JUNCTIONS
Кл.слова (ненормированные):
YBaCuO+BaPbO3
bulk
composites
--
network of weak S-N-S links
--
critical current density
Аннотация:
Bulk
composites Y3/4Lu1/4Ba2Cu3O7 + BaPbO3 with BaPbO3 volume content of 0-60% have been prepared. Temperature dependences of resistance and critical current density J(c)(T) are presented. The best agreement of experimental J(c)(T) with theory has been reached for the Gunsenheimer-Schussler-KUmmel consideration of superconductor-normal metal-superconductor (S-N-S) junctions in the "clean" limit. (C) 1997 Elsevier Science B.V.
WOS
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; Ospishchev, S. V.; Shaihutdinov, K. A.; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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14.
Zhandun, V. S.
Effect of an Eu3+ impurity on the antiferrodistortion and ferroelectric instabilities in an EuTiO3
bulk
crystal and thin films / V. S. Zhandun, N. G. Zamkova, V. I. Zinenko> // J. Exp. Theor. Phys. - 2015. -
Vol. 120
,
Is. 1
. - P. 103-109,
DOI
10.1134/S1063776115010070. - Cited References:21. - This work was supported by the Russian Foundation for Basic Research (project no. 12-02-00025-a) and the program Leading Scientific Schools of the President of the Russian Federation (project no. NSh-924.2014.2). . - ISSN 1063. - ISSN 1090-6509. -
РУБ
Physics, Multidisciplinary
Рубрики:
PEROVSKITES
Аннотация:
The existence of an antiferrodistortion transition in EuTiO3 is disputable, and this question needs to be answered. One of the possible causes is the presence of an Eu3+ impurity in a sample. A nonempirical polarizable ion model is used to study the effect of a trivalent Eu3+ ion impurity on the antiferrodistortion and ferroelectric instabilities of an EuTiO3 crystal in the
bulk
and the thin-film states. Lattice dynamics calculation shows that a
bulk
impurity-free EuTiO3 crystal has no unstable modes throughout the entire phase space volume. The addition of an Eu3+ impurity leads to a significant softening of the rotational mode, the distortion in which makes tetragonal phase I4/mcm (which is experimentally observed) energetically favorable. In going from the
bulk
crystal to the thin film, the vibration spectrum of the impurity-free film has unstable antiferrodistortion and rotational modes. The addition of an Eu3+ impurity enhances the antiferrodistortion instability, which fully or partly suppresses ferroelectricity.
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Публикация на русском языке
Жандун, Вячеслав Сергеевич. Влияние примеси Eu3+ на антиферродисторсионную и сегнетоэлектрическую неустойчивости в объемном кристалле и тонких пленках EuTiO3 [Текст] / В. С. Жандун, Н. Г. Замкова, В. И. Зиненко // J. Exp. Theor. Phys. : Наука, 2015. - Т. 147 Вып. 1. - С. 119-126
Доп.точки доступа:
Zamkova, N. G.; Замкова, Наталья Геннадьевна; Zinenko, V. I.; Зиненко, Виктор Иванович; Жандун, Вячеслав Сергеевич; Russian Foundation for Basic Research [12-02-00025-a]; Russian Federation [NSh-924.2014.2]
}
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15.
Effects of static
electric field and of mechanical pressure on surface acoustic waves propagation in La3Ga5SiO14 piezoelectric single crystals / K. S. Aleksandrov [et al.]> //
Proc IEEE Ultrason Symp. - 1995. -
Vol. 1
. - P. 409-412 . - ISBN 1051-0117
Кл.слова (ненормированные):
Electric field effects
--
Electrostriction
--
Lanthanum compounds
--
Piezoelectric materials
--
Piezoelectricity
--
Pressure effects
--
Quartz
--
Single crystals
--
Tensors
--
Bulk
acoustic wave
--
Dielectric permeability
--
Electromechanical bond coefficients
--
Lanthanum gallium silicide
--
Mechanical pressure
--
Nonlinear electromechanical properties
--
Nonlinear piezoelectric effect
--
Piezoquartz
--
Static electric field
--
Tensorial components
--
Ultrasonic propagation
Аннотация:
The complete set of tensorial components of linear and nonlinear electromechanical properties for La3Ga5SiO14 piezoelectric crystals have been obtained. These data were used for the analysis of influence of static electrical field and of uniaxial homogeneous mechanical pressure on the propagation of surface acoustic waves.
Scopus
Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Sorokin, B. P.; Turchin, P. P.; Burkov, S. I.; Glushkov, D. A.; Karpovich, A. A.; IEEE International Ultrasonics Symposium(1995 ; Nov. ; 7-10 ; Seattle, USA)
}
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16.
Elastic anharmonicity and
elastic constants temperature dependences of different quality quartz crystals / B. P. Sorokin [et al.]> //
Proc Annu IEEE Int Freq Control Symp. - 2000. - P. 410-415 . - ISBN 0161-6404
Кл.слова (ненормированные):
Acoustic
bulk
wave devices
--
Acoustic wave propagation
--
Elastic moduli
--
Pressure effects
--
Quartz
--
Thermal effects
--
Crystal quality
--
Elastic anharmonicity
--
Mechanical pressure
--
Second order elastic constant
--
Temperature coefficients
--
Crystal structure
Аннотация:
SOEC temperature dependences of different quality quartz crystals were studied. The simplified phenomenological theory was applied to calculate second order elastic constant temperature dependences. The
bulk
acoustic waves propagation under the bias of temperature field or of the uniaxial mechanical pressure was considered. It was found that crystal quality changes have caused certain variations of some third order elastic constant values and some temperature coefficients.
Scopus
Доп.точки доступа:
Sorokin, B. P.; Glushkov, D. A.; Turchin, P. P.; Michailyuta, S. V.; Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Doubovsky, A. B.; IEEE Annual frequency control symposium(54 ; 2000 ; Jun. ; 7-9 ; Kansas)
}
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17.
Prodaivoda, G. T.
Elastic symmetry and anisotropic parameters of specimens of Archean gneisses and Kola superdeep-borehole amphibolites / G. T. Prodaivoda, K. S. Aleksandrov> // Geol. Geofiz. - 1998. -
Vol. 39
,
Is. 3
. - P. 375-385. - Cited References: 22 . - ISSN 0016-7886
Рубрики:
ROCKS
Кл.слова (ненормированные):
Kola superdeep borehole
--
gneisses
--
amphibolites
--
elastic symmetry
--
anisotropy
--
bulk
elastic waves
--
microfracture orientation
Аннотация:
Using an invariant-polarization ultrasound method, we have studied the velocities of elastic waves in the gneisses and amphibolites of the second rock mass of the Archean complex of the Kola superdeep borehole (7622-9456 m) and calculated the determinate components of acoustic tensor and elastic-constant tensor and their symmetry. The symmetry of the studied structures is shown to be rhombic and triclinic. The stereoprojections of mineral's crystallographic orientation and normals to microfractures are built by the data on the inversion of the azimuthal dependence of elastic constants.
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Публикация на "русском" языке
Держатели документа:
Kiev State Univ, Ul Vasilkovskaya 90, UA-252022 Kiev, Ukraine
Russian Acad Sci, Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Доп.точки доступа:
Aleksandrov, K. S.; Александров, Кирилл Сергеевич; Продайвода, Георгий Трофимович
}
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18.
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.
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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
}
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19.
Feature of the
endohedral metallofullerene Y@C82 and Gd@C82 polymerization under high pressure / V. V. Zhukov, S. V. Erohin, V. D. Churkin [et al.]> // J. Phys. Chem. C. - 2022. -
Vol. 126
,
Is. 40
. - P. 17366-17373,
DOI
10.1021/acs.jpcc.2c05139. - Cited References: 35. - The authors gratefully acknowledge the financial support of the RFBR (project identifier: 18-29-19080). V.D.C. acknowledges the support of the RFBR (project identifier: 20-32-90038). M.Y.P. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the State Task (project code 0718-2020-0037) for Raman study, interpretation, and discussion of obtained results and Russian Science Foundation (project #20-12-00097) for investigation of fullerite mechanical properties. V.V.Z., S.V.E., and P.B.S. acknowledge the support of the Ministry of Science and Higher Education of the Russian Federation in the framework of the strategic academic leadership program “Priority 2030” (no. K6-2022-041). The calculations were performed at the supercomputer cluster provided by the Materials Modeling and Development Laboratory at NUST “MISIS” and the Joint Supercomputer Center of the Russian Academy of Sciences. The authors thank the staff of the Information Technology Department of the Moscow Institute of Physics and Technology and express their gratitude to the Data Center Group for their help in performing calculations . - ISSN 1932-7447
Кл.слова (ненормированные):
Fullerenes
--
Diamond anvil cell technique
--
Endohedral metallofullerenes
--
Experimental approaches
--
Fullerene cages
--
Gadolinia
--
High
bulk
modulus
--
High pressure
--
Low pressures
--
Polymerized material
--
Theoretical approach
--
Polymerization
Аннотация:
In the present work, the polymerization of endohedral metallofullerenes (EMFs) with gadolinium (Gd@C82) and yttrium atoms (Y@C82) at high pressures achieved using the shear diamond anvil cell technique is studied using both theoretical and experimental approaches. It is found that in contrast to pure fullerenes, EMF polymerization starts at lower pressures with similar behavior for both metals inside the fullerene cage. EMF polymerization occurs smoothly and finally leads to a significant increase in the number of interfullerene bonds at pressures higher than ∼20 GPa. Finally, a high
bulk
modulus of both EMF-polymerized materials is obtained using Raman spectra.
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Держатели документа:
Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow, 108840, Russian Federation
National University of Science and Technology MISiS, Moscow, 119049, Russian Federation
Moscow Institute of Physics and Technology, Dolgoprudniy, Moscow, 141701, Russian Federation
Institute of Engineering Physics and Radio Electronics, Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, Moscow, 119334, Russian Federation
Institute of Chemistry and Chemical Technology, The Siberian Branch of the RAS, Federal Research Center KSC Siberian Branch Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Zhukov, V. V.; Erohin, S. V.; Churkin, V. D.; Vnukova, N. G.; Внукова, Наталья Григорьевна; Antipina, L. Y.; Elesina, V. I.; Елесина, Виктория Игоревна; Visotin, M. A.; Высотин, Максим Александрович; Tomashevich, Y. V.; Popov, M. Y.; Churilov, G. N.; Чурилов, Григорий Николаевич; Sorokin, P. B.; Fedorov, A. S.; Федоров, Александр Семенович
}
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20.
First-principles calculations of
the equations of state and relative stability of iron carbides at the Earth's core pressures / K. D. Litasov [et al.]> // Russ. Geol. Geophys. - 2015. -
Vol. 56
,
Is. 1-2
. - P. 164-171,
DOI
10.1016/j.rgg.2015.01.010. - Cited References:50. - The study was supported by the Russian Science Foundation (grant no. 14-17-00601) and a grant for young scientists from the President of the Russian Federation (MD-500.2013.5) under a project of the Ministry of Education and Science (no. 14.B25.31.0032). The work of S.G. Ovchinnikov and Z.I. Popov was also supported by the Leading Science School program (no. NSh-2886.2014.2). . - ISSN 1068. - ISSN 1878-030X. -
РУБ
Geosciences, Multidisciplinary
Рубрики:
AUGMENTED-WAVE METHOD
Fe-C SYSTEM
AB-INITIO
OF-STATE
CARBON
MANTLE
Кл.слова (ненормированные):
iron carbide
--
Earth's core
--
first-principles calculations
--
density
--
bulk
--
modulus
--
magnetic moment
Аннотация:
Recent experimental studies have demonstrated that Fe3C is more stable than Fe7C3 under PT-conditions of the Earth's core. Theoretical calculations at 0 K, in turn, show the possible stability of Fe2C at the core pressures. Therefore, a theoretical modeling of iron carbides at <=500 GPa is carried out. Energetically stable phases and the pressures of magnetic transitions at 0 K are determined. The parameters of magnetic transitions for Fe7C3 and Fe3C are consistent with those determined in the previous papers. The phase transition from Pnnm to Pnma in Fe2C at 28 GPa is estimated. At > 100 GPa, Fe2C loses its magnetic moment. Assuming carbon to be the only light element in the system, the first-principles calculations yield 2.7-2.9 and 2.0-2.2 wt.% C at the boundary of the inner core at 5000 and 7000 K, respectively.
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Публикация на русском языке
Первопринципные расчеты уравнений состояния и относительной стабильности карбидов железа при давлениях ядра земли [Текст] / К. Д. Литасов [и др.] // Геол. и геофиз. - Новосибирск : Изд-во СО РАН, 2015. - Т. 56 № 1-2. - С. 214-223
Держатели документа:
Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Novosibirsk 630090, Russia
Russian Acad Sci, Siberian Branch, LV Kirensky Inst Phys, Krasnoyarsk 660036, Russia
Novosibirsk State Univ, Novosibirsk 630090, Russia
Siberian Fed Univ, Krasnoyarsk 660041, Russia
Доп.точки доступа:
Litasov, K. D.; Popov, Z. I.; Попов, Захар Иванович; Gavryushkin, P. N.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Fedorov, A. S.; Федоров, Александр Семенович; Russian Science Foundation [14-17-00601]; Russian Federation under Ministry of Education and Science [MD-500.2013.5, 14.B25.31.0032]; Leading Science School program [NSh-2886.2014.2]
}
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