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NMR DETERMINATION OF THE SOLITON DENSITY IN INCOMMENSURATE SYSTEMS / R. . BLINC [et al.] // JOURNAL OF PHYSICS C-SOLID STATE PHYSICS. - 1986. - Vol. 19, Is. 18. - P. 3421-3432, DOI 10.1088/0022-3719/19/18/014. - Cited References: 34 . - ISSN 0022-3719

РУБ Physics, Condensed Matter

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Scopus
Держатели документа:
LV KIRENSKII PHYS INST,KRASNOYARSK,USSR
NUCL RES CTR DEMOKRITOS,ATHENS,GREECE
ИФ СО РАН
Department of Physics, J Stefan Institute, E Kardelj University of Ljubljana, Ljubljana, Slovenia
L V Kirenski Institute of Physics, Krasnoyarsk, Russian Federation
Nuclear Research Centre, Demokritos, Athens, Greece
Доп.точки доступа:
BLINC, R.; RUTAR, V.; TOPIC, B.; ZUMER, S.; SELIGER, J.; ALEKSANDROVA, I. P.; Александрова, Инга Петровна; MILIA, F.
}
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Gavrichkov, V. A.
DENSITY OF STATES AND ABSORPTION-SPECTRUM OF THE FERROMAGNETIC SEMICONDUCTOR HGCR2SE4 / V. A. GAVRICHKOV, M. S. ERUKHIMOV, S. G. OVCHINNIKOV // Fiz. Tverd. Tela. - 1987. - Vol. 29, Is. 2. - P. 527-529. - Cited References: 7 . - ISSN 0367-3294

РУБ Physics, Condensed Matter

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Доп.точки доступа:
ERUKHIMOV, M. S.; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Гавричков, Владимир Александрович
}
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Atom-density distribution in a metal vapor cell studied by 3rd-harmonic generation / M. K. Kodirov [et al.] // Appl. Phys. B. - 1988. - Vol. 45, Is. 1. - P. 47-52, DOI 10.1007/BF00692341. - Cited References: 20 . - ISSN 0721-7269

РУБ Physics, Applied

Кл.слова (ненормированные):
42.65 -- 42.80 -- CESIUM AND ALLOYS - Applications -- LIGHT - Nonlinear Optical Effects -- SPECTROSCOPY - Measurements -- ATOM-DENSITY DISTRIBUTION -- CESIUM VAPORS -- METAL VAPOR CELL -- THIRD-HARMONIC GENERATION -- VAPORS

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Держатели документа:
USSR Academy of Sciences, Siberian Branch, L. V. Kirensky Institute of Physics, Krasnoyarsk, SU-66036, Russia

Доп.точки доступа:
Kodirov, M. K.; Popov, A. K.; Попов, Александр Кузьмич; Slabko, V. V.; Слабко, Виталий Васильевич; Yakhnin, V. Z.
}
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Gavrichkov, V. A.
DENSITY OF STATES AND LIGHT-ABSORPTION IN THE FERROMAGNETIC SEMICONDUCTOR CDCR2S4 / V. A. GAVRICHKOV, M. S. ERUKHIMOV, S. G. OVCHINNIKOV // Fiz. Tverd. Tela. - 1990. - Vol. 32, Is. 10. - P. 2931-2932. - Cited References: 2 . - ISSN 0367-3294

OVCHINNIKOV, S. G.
DENSITY OF SINGLE-PARTICLE STATES IN STRONGLY CORRELATED ELECTRON-SYSTEMS IN COPPER OXIDES / S. G. OVCHINNIKOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1993. - Vol. 104, Is. 5. - P. 3719-3734. - Cited References: 24 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary
Рубрики:
DYNAMIC PROPERTIES
   BAND
   SPECTRA
   MODEL

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OVCHINNIKOV, S. G.
CHANGE OF THE DENSITY OF STATES WITH HOLE DOPING IN CUO2 LAYERS / S. G. OVCHINNIKOV // Zhurnal Eksperimentalnoi Teor. Fiz. - 1993. - Vol. 103, Is. 4. - P. 1404-1410. - Cited References: 7 . - ISSN 0044-4510

РУБ Physics, Multidisciplinary

Аннотация: By means of the exact diagonalization of the many-electron hamiltonian the single-particle density of states is calculated for CuO4 cluster. For undoped case there is a dielectric gap in which new states arise with hole doping. The concentration dependence of the Fermi level is found and the critical concentration of the insulator-metal Anderson transition is evaluated.

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Ovchinnikov, S. G.
Density of hole-doped states in strongly correlated electron-systems of copper oxides / S. G. Ovchinnikov // Phys. Rev. B. - 1994. - Vol. 49, Is. 14. - P. 9891-9897, DOI 10.1103/PhysRevB.49.9891. - Cited References: 34 . - ISSN 0163-1829

РУБ Physics, Condensed Matter
Рубрики:
DYNAMIC PROPERTIES
   SUPERCONDUCTIVITY
   GAP
   LA2CUO4
   BI2SR2CACU2O8
   PHOTOEMISSION
   SPECTROSCOPY
   SPECTRA
   MODEL
   BAND
Аннотация: A generalized tight-binding method to calculate quasiparticle band structure and density of states in strongly correlated systems is presented. The band structures of undoped and weakly hole-doped CuO2 layer are calculated. The insulator gap has a charge transfer nature with a minor contribution from a Cu-O Coulomb interaction. Doping results in the appearance of an in-gap state with a simultaneous decrease of the density of states at the band edges in agreement with small cluster results and experimental data.

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Держатели документа:
L. V. Kyrensky Institute of Physics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Овчинников, Сергей Геннадьевич
}
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The comparative-analysis of some low-frequency vibrational-state density models of the amorphous materials - applied to the as2s3 glass / A. Feher [et al.] // Physica B. - 1994. - Vol. 194. - P. 395-396, DOI 10.1016/0921-4526(94)90527-4. - Cited References: 6 . - ISSN 0921-4526

РУБ Physics, Condensed Matter
Рубрики:
SPECTRUM
Аннотация: The specific heat from 3K to 15K and the Raman spectra were measured on the As2S3 glass. The specific heat data were fitted using two different models of the vibrational state density, i.e. the phonon-fraction model and the model of lognormal distribution of frequencies. We have shown that the excess vibrational state density which governs the specific heat behaviour gives only a little contribution to the intensity of Raman scattering in the boson peak region.

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Держатели документа:
UNIV UZHGOROD,DEPT PHYS SEMICOND,UZHGOROD 294000,UKRAINE
LV KIRENSKII INST PHYS,KRASNOYARSK 660036,RUSSIA
ИФ СО РАН

Доп.точки доступа:
Feher, A.; Yyurkin, I. M.; Deich, L. I.; Orendac, M.; Turyanitsa, I. D.; International Conference on Low Temperature Physics(20 ; 1993 ; Aug. 04-11 ; Eugene, OR)
}
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ZINENKO, V. I.
CALCULATION OF LONG-WAVELENGTH PHONON FREQUENCIES, OF DIELECTRIC PERMITTIVITY, AND B1-B2 PHASE-TRANSITIONS IN ALKALI-METAL HYDRIDES BY THE DENSITY-FUNCTIONAL TECHNIQUE / V. I. ZINENKO, A. S. FEDOROV // Fiz. Tverd. Tela. - 1994. - Vol. 36, Is. 5. - P. 1357-1365. - Cited References: 17 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
PRESSURE
ENERGY

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Доп.точки доступа:
FEDOROV, A. S.
}
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10.

Ovchinnikov, S. G.
Modification of magnetic and superconducting properties of layered cuprates due to copper substitution for zinc and nickel / S. G. Ovchinnikov // Fiz. Tverd. Tela. - 1995. - Vol. 37, Is. 12. - P. 3645-3654. - Cited References: 28 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
ELECTRONIC-STRUCTURE
   LA2CUO4
   LA2-XSRXCUO4
   EXCITATIONS
   DENSITY
   PLANE
   NI

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11.

Study of electroconductivity in cobalt nanocrystalline films / G. I. Frolov [и др.] // Fiz. Tverd. Tela. - 1996. - Vol. 38, Is. 4. - P. 1208-1213. - Cited References: 13 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
METAL-FILMS
   RESISTIVITY
   CONDUCTION
   ELECTRONS
   DENSITY

WOS

Доп.точки доступа:
Frolov, G. I.; Zhigalov, V. S.; Polskii, A. I.; Pozdnyakov, V. G.
}
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12.

Low-temperature electrical properties of Me(x)V(1-x)S / G. A. Petrakovskii [и др.] // Fiz. Tverd. Tela. - 1996. - Vol. 38, Is. 4. - P. 1012-1016. - Cited References: 9 . - ISSN 0367-3294

РУБ Physics, Condensed Matter
Рубрики:
DENSITY WAVES

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Держатели документа:
LV KIRENSKII INST PHYS,KRASNOYARSK 660036,RUSSIA
KRASNOYARSK MIN TECHNOL INST,KRASNOYARSK 660036,RUSSIA
ИФ СО РАН

Доп.точки доступа:
Petrakovskii, G. A.; Loseva, G. V.; Mukoed, G. M.; Kiselev, N. I.; Baranov, A. V.
}
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13.

    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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14.

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.

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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; Ospishchev, S. V.; Shaihutdinov, K. A.; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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15.

Transport properties of composites high temperature superconductor + semiconductor with different carrier concentration / M. I. Petrov [et al.] // Physica C-Superconductivity and its Applications. - 1997. - Vol. 282, Is. PART 4. - P. 2449-2450 . - ISSN 0921-4534
Кл.слова (ненормированные):
Carrier concentration -- Critical current density (superconductivity) -- High temperature superconductors -- Semiconductor materials -- Thermal effects -- Transport properties -- Superconductor semiconductor superconductor junctions -- Composite materials
Аннотация: Composites HTSC + semiconductor with different carrier concentrations were prepared as a model of Josephson type contacts. Experimental temperature dependences of the critical current density Jc(T) in the composites are presented. The best congruence of experiment with theory was reached for the Schussler-Kummel consideration of Andreev scattering in S-Sm-S (S-superconductor, Sm-semiconductor) junctions.

Scopus

Доп.точки доступа:
Petrov, M. I.; Петров, Михаил Иванович; Balaev, D. A.; Балаев, Дмитрий Александрович; Shaikhutdinov, K. A.; Шайхутдинов, Кирилл Александрович; Khrustalev, B. P.; Хрусталев, Борис Петрович; Aleksandrov, K. S.; Александров, Кирилл Сергеевич
}
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16.

Sandalov, I.
From local-density approximation to strong electron correlations / I. . Sandalov, B. . Johansson, O. . Eriksson // Physica B. - 1999. - Vol. 259-61: International Conference on Strongly Correlated Electron Systems (SCES 98) (JUL 15-18, 1998, PARIS, FRANCE). - P. 229-230, DOI 10.1016/S0921-4526(98)00789-3. - Cited References: 4 . - ISSN 0921-4526

РУБ Physics, Condensed Matter
Рубрики:

Кл.слова (ненормированные):
beyond LDA -- correlations -- diagram technique -- non-orthogonality
Аннотация: We formulate a regular approach for ab initio calculations of the band structure, ground state properties (T = 0 K) and excitations (T not equal 0) which goes beyond the local-density approximation (LDA) for systems with d- and f-electrons. A diagram technique for non-zero temperature both from the itinerant and atomic limits is developed within a non-orthogonal basis which is generated by the calculation in LDA. LDA is taken as a reference point. Local electron correlations are taken into account by exact transformation of total Hamiltonian to many-electron representation. The derived system of equations for Green's functions of coupled conduction and correlated electrons (including angular momenta, etc.) is presented in closed functional form which allows to construct accurately self-consistent approximations. The approach can be used also in particular cases of any non-commutative algebras,like different spin models with strong anisotropy, or models of correlated electrons (Hubbard, Anderson) for multiple on-site orbitals. (C) 1999 Elsevier Science B.V. All rights reserved.

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Держатели документа:
Univ Uppsala, Inst Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden
LV Kirensky Phys Inst, Krasnoyarsk 630036, Russia
ИФ СО РАН

Доп.точки доступа:
Johansson, B.; Eriksson, O.
}
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17.

Gavrichkov, V. A.
Characteristic features of the extrinsic electric resistance in ferromagnets with low carrier density / V. A. Gavrichkov, S. G. Ovchinnikov // Phys. Solid State. - 1999. - Vol. 41, Is. 1. - P. 59-66, DOI 10.1134/1.1130731. - Cited References: 26 . - ISSN 1063-7834

РУБ Physics, Condensed Matter
Рубрики:
QUANTUM TEMPERATURE OSCILLATIONS
   MAGNETIC SEMICONDUCTORS
   HGCR2SE4
   RESISTIVITY
   FILMS
Аннотация: Switching from simple semiconductors to more complicated chemical compositions, we encounter mainly nonstoichiometric or undoped compounds. Combined with other characteristic features of d(f) compounds, this can lead, together with the ordinary scattering by spin disorder in magnetic semiconductors, to an unusual impurity contribution to the total scattering of carriers even in intrinsic semiconductors. A unique scheme for calculating the energy structure of the conduction-band bottom of a ferromagnetic semiconductor and the temperature and field dependences of the impurity contribution to the resistivity is proposed on the basis of a model Hamiltonian. The computed magnetoresistance ratio is negative and has a maximum near T-c. A qualitative comparison is made between the results and the experimental temperature dependences of the Hall mobility and magnetoresistance ratio in the ternary semiconductor n-HgCr2Se4, which is nonstoichiometric with respect to the chalcogen. To identify previously unobserved temperature oscillations of the resistance, a careful analysis is made of the low-temperature part of the resistance using the relations obtained. (C) 1999 American Institute of Physics. [S1063-7834(99)01701-3].

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Публикация на русском языке Гавричков, Владимир Александрович. Особенности примесного электросопротивления в ферромагнетиках с малой концентрацией носителей [Текст] / В. А. Гавричков, С. Г. Овчинников // Физ. тверд. тела. - С.-Петербург, 1999. - Т. 41 Вып. 1. - С. 68-76

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Гавричков, Владимир Александрович
}
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18.

Evolution of the band structure of quasiparticles with doping in copper oxides on the basis of a generalized tight-binding method / V. A. Gavrichkov [et al.] // J. Exp. Theor. Phys. - 2000. - Vol. 91, Is. 2. - P. 369-383, DOI 10.1134/1.1311997. - Cited References: 45 . - ISSN 1063-7761

РУБ Physics, Multidisciplinary
Рубрики:
T-J MODEL
   CUPRATE SUPERCONDUCTORS
   ELECTRONIC-STRUCTURE
   EXCITATIONS
   DEPENDENCE
   TEMPERATURE
   DERIVATION
   SR2CUO2CL2
   SPECTRUM
   DENSITY
Аннотация: Two methods for stabilizing the two-hole B-3(1g) state as the ground state instead of the Zhang-Rice singlet are determined on the basis of an orthogonal cellular basis for a realistic multiband pd model of a CuO2 layer and the dispersion relations for the valence band top in undoped and doped cases are calculated. In the undoped case, aside from the valence band, qualitatively corresponding to the experimental ARPES data for Sr2CuO2Cl2 and the results obtained on the basis of the t-t'-J model, the calculations give a zero-dispersion virtual level at the valence band top itself. Because of the zero amplitude of transitions forming the virtual level the response corresponding to it is absent in the spectral density function. In consequence, the experimental ARPES data do not reproduce its presence in this antiferromagnetic undoped dielectric. A calculation of the doped case showed that the virtual level transforms into an impurity-type band and acquires dispersion on account of the nonzero occupation number of the two-hole states and therefore should be detected in ARPES experiments as a high-energy peak in the spectral density. The computed dispersion dependence for the valence band top is identical to the dispersion obtained by the Monte Carlo method, and the ARPES data for optimally doped Bi2Sr2CaCu2O8 + delta samples. The data obtained also make it possible to explain the presence of an energy pseudogap at the symmetric X point of the Brillouin band of HTSC compounds. (C) 2000 MAIK "Nauka/Interperiodica".

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Публикация на русском языке Эволюция зонной структуры квазичастиц с допированием в оксидах меди в рамках обобщенного метода сильной связи [Текст] / В. А. Гавричков [и др.] // Журн. эксперим. и теор. физ. - 2000. - Т. 118 Вып. 2. - С. 422-437

Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
ИФ СО РАН

Доп.точки доступа:
Gavrichkov, V. A.; Гавричков, Владимир Александрович; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Borisov, A. A.; Goryachev, E. G.
}
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19.

Modification of the standard model for the lanthanides / U. . Lundin [et al.] // Solid State Commun. - 2000. - Vol. 115, Is. 1. - P. 7-12, DOI 10.1016/S0038-1098(00)00126-5. - Cited References: 33 . - ISSN 0038-1098

РУБ Physics, Condensed Matter
Рубрики:
ELECTRONIC-STRUCTURE CALCULATIONS
   DENSITY-FUNCTIONAL THEORY
   PARTICLE BAND-STRUCTURE
   AB-INITIO CALCULATIONS
   FERROMAGNETIC NICKEL
   COHESIVE PROPERTIES
   CRYSTAL-STRUCTURE
   MOTT INSULATORS
   FERMION SYSTEMS
   PR METAL
Кл.слова (ненормированные):
metals -- electronic band structure -- Band structure -- Elastic moduli -- Kohn-Sham scheme -- Rare earth elements
Аннотация: We show that incorporation of strong electron correlations into the Kohn-Sham scheme of band structure calculations leads to a modification of the standard model of the lanthanides and that this procedure removes the existing discrepancy between theory and experiment concerning the ground state properties. Within the picture suggested, part of the upper Hubbard f-band is occupied due to conduction band-f-mixing interaction (that is renormalized due to correlations) and this contributes to the cohesive energy of the crystal. The lower Hubbard band has zero width and describes fermionic excitations in the shell of localized f-s. Fully self-consistent calculations (with respect to both charge density and many-electron population numbers of the f-shell) of the equilibrium volume V-0 and the bulk modulus of selected lanthanides have been performed and a good agreement with experiment is obtained. (C) 2000 Elsevier Science Ltd. All rights reserved.

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Держатели документа:
Univ Uppsala, Dept Phys, Condensed Matter Theory Grp, S-75121 Uppsala, Sweden
Russian Acad Sci, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Condensed Matter Theory Group, Dept. Phys., Univ. Uppsala, B., Uppsala, Sweden
Kirensky Institute of Physics, Russian Academy of Sciences, 660036, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Lundin, U.; Sandalov, I.; Eriksson, O.; Johansson, B.
}
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20.

Superconductor-semiconductor-superconductor junction network in bulk polycrystalline composites Y3/4Lu1/4Ba2Cu3O7 + Cu1-xLixO / M. I. Petrov [et al.] // Superconductor Science and Technology. - 2001. - Vol. 14, Is. 9. - P. 798-805, DOI 10.1088/0953-2048/14/9/333 . - ISSN 0953-2048
Кл.слова (ненормированные):
Critical current density (superconductivity) -- Josephson junction devices -- Polycrystalline materials -- Superconductivity -- Thermal effects -- Transport properties -- Superconductor junction networks -- Semiconductor junctions
Аннотация: Bulk Y3/4Lu1/4Ba2Cu3O7 + Cu1-xLixO composites with x = 0, 0.003 and 0.06 and varied volume content of Cu1-xLixO have been prepared. Analysis of the transport properties of the composites has shown that they can be represented as a network of superconductor-semiconductor-superconductor (S-Sm-S) weak links. The dependence of the critical current density on the normal resistance for the composites studied shows a behaviour similar to that for single Josephson junctions. The experimental temperature dependences of the critical current are qualitatively described in terms of a theory of S-Sm-S junctions that takes into account the Andreev reflection of carriers from the S-Sm and Sm-S interfaces.

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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
}
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