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Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisov V. M., Volkov N. V., Irtyugo L. A., Patrin G. S., Denisova L. T.
Заглавие : High-temperature heat capacity of the BiFeO3 multiferroic
Место публикации : Phys. Solid State: MAIK Nauka-Interperiodica / Springer, 2012. - Vol. 54, Is. 6. - P.1312-1314. - ISSN 1063-7834, DOI 10.1134/S1063783412060108
Примечания : Cited References: 27
Предметные рубрики: STRUCTURAL-CHARACTERIZATION
SINGLE-CRYSTALS
FEATURES
SYSTEM
RANGE
Аннотация: Data on the heat capacity of the BiFeO3 multiferroic have been obtained within a broad temperature interval. Correlation has been established between the composition of the Bi2O3-Fe2O3 pseudobinary system and the specific heat capacity of the oxide compounds.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bobrov P. P., Mironov V. L., Repin A. V.
Заглавие : Dielectric permittivity spectra of oil-water-saturated sandy-clayey rocks of different mineralogical compositions and relaxation properties of water in these rocks
Коллективы : RFBR [12-05-00502a, 14-05-00151a]
Место публикации : Russ. Geol. Geophys.: Elsevier Science, 2015. - Vol. 56, Is. 7. - P.1065-1073. - ISSN 1068-7971, DOI 10.1016/j.rgg.2015.06.007
Примечания : Cited References: 21. - This work was supported by RFBR (grant nos. 12-05-00502a and 14-05-00151a).
Предметные рубрики: MOIST SOILS
FREQUENCY
MODEL
TEMPERATURE
SALINITY
RANGE
GHZ
Ключевые слова (''Своб.индексиров.''): conductivity--dielectric permittivity--multifrequency dielectric relaxation--oil-bearing deposits--sandy-clayey rocks
Аннотация: Experimental measurements of the dielectric permittivity and equivalent conductivity of sandy-clayey samples (a mixture of river sand with bentonite or kaolin) saturated with salt-solution-diesel-fuel emulsions were performed in the frequency range from 10 kHz to 1 GHz at temperatures of 25-65 °C. It is shown that when the content of the salt solution in the saturating fluid does not exceed 10%, the dielectric permittivity in the frequency range from 1 MHz to 1 GHz depends little on the mineral composition of the sample and on the concentration of the saturating solution. When the portion of water is 33.3% or higher, increasing the concentration of the salt solution leads to an increase in the equivalent conductivity and the real part of the complex dielectric permittivity. Using the refractive model of the complex dielectric permittivity, we have estimated the dielectric properties of bound water, which depend on temperature and the type of clay (bentonite or kaolin) in the sand-clay mixture but are independent of the water saturation and the amount of clay in the sample.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Jiang X., Molokeev M. S., Li W., Wu S., Lin Z., Wu Y., Chen C.
Заглавие : The mechanism of the area negative thermal expansion in KBe2BO3F2 family crystals: A first-principles study
Место публикации : J. Appl. Phys.: American Institute of Physics, 2016. - Vol. 119, Is. 5. - Ст.055901. - ISSN 00218979 (ISSN), DOI 10.1063/1.4941266
Примечания : Cited References: 56. - This work was supported by the National Scientific Foundations of China (Grant No. 11474292), the Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC), and the Opening Project of the Key Laboratory of Cryogenics in TIPC, Chinese Academy of Sciences, China “863” Project (No. 2015AA034203) and “973” Project (No. 2014CB921301).
Предметные рубрики: PSEUDOPOTENTIALSSTATE
COMPRESSIBILITY
TETRAHEDRA
RANGE
STATE
Аннотация: A very recent study demonstrated that the KBe2BO3F2 (KBBF) family of crystals, including KBBF, RbBe2BO3F2, and CsBe2BO3F2, are the only known borates exhibiting a rarely occurring isotropic area negative thermal expansion (NTE) behavior, over a very large temperature range. In the present work, the NTE mechanism in these crystals is comprehensively investigated using the first-principles calculations. It is revealed that the area NTE behavior mainly originates from the concerted distortion of [BeO3F] tetrahedra in the two-dimensional [Be2BO3F2] framework with respect to temperature, while the [BO3] triangles remain almost rigid. Moreover, the different magnitude of NTE effect in the three crystals is attributed to the interaction difference between the alkali metal atoms (K, Rb, or Cs) and the [Be2BO3F2] layer. © 2016 AIP Publishing LLC.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Korshunov M. M., Ovchinnikov S. G., Sherman A. V.
Заглавие : Effective hamiltonian and properties of the normal and superconducting phases of n-type cuprates
Разночтения заглавия :авие SCOPUS: Effective Hamiltonian and properties of the normal and superconducting phases of n-type cuprates
Место публикации : JETP Letters. - 2004. - Vol. 80, Is. 1. - P.39-43. - ISSN 0021-3640, DOI 10.1134/1.1800212
Примечания : Cited References: 32
Предметные рубрики: T-J MODEL
ORDER-PARAMETER
QUASI-PARTICLES
COPPER OXIDES
FERMI-SURFACE
ELECTRON
SYMMETRY
RANGE
ND1.85CE0.15CUO4
TRANSITIONS
Аннотация: An effective low-energy Hamiltonian is derived from a microscopic multiband p-d model in the regime of strong electron correlations. The parameters of the p-d model are determined by comparison with the ARPES data for undoped Nd2CuO4. The Hamiltonian is the t-J* model in which hopping and exchange slowly decay with distance and are taken into account up to the fifth coordination sphere. The quasiparticle band structure is calculated as a function of the doping concentration with regard to short-range magnetic order, and the superconductivity theory with the spin-fluctuation pairing mechanism is constructed. Assuming that the parameters of the model do not depend on the doping level, we obtained quantitative agreement with the properties observed experimentally for the normal and superconducting phases without introducing fitting parameters. (C) 2004 MAIK "Nauka / Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Svistov L. E., Chubarenko V. A., Shapiro A. Y., Zalesskii A. V., Petrakovskii G. A.
Заглавие : Antiferromagnetic resonance in Bi2CuO4
Место публикации : J. Exp. Theor. Phys.: AMER INST PHYSICS, 1998. - Vol. 86, Is. 6. - P1228-1233. - ISSN 1063-7761, DOI 10.1134/1.558595
Примечания : Cited References: 14
Предметные рубрики: SINGLE-CRYSTAL
RANGE
Аннотация: Magnetic resonance of the low-frequency spin-wave branch in the Bi2CuO4 antiferromagnet with an easy-plane anisotropy has been studied. Angular, frequency, and temperature dependences of the position and width of the antiferromagnetic resonance (AFMR) line have been measured. Our measurements combined with earlier data [H. Ochta, K. Yoshida, T. Matsuya, T. Nanba, M. Motokawa, K. Yamada, Y. Endon, and S. Hosoya, J. Phys. Sec. Jpn. 61, 2921 (1992); E. W. Ong, G. H. Kwei, R. A. Robinson, B. L. Ramakrishna, and R. B. von Dreele, Phys. Rev. B 42, 4255 (1990)] have allowed us to determine anisotropy constants of this material and to account for the unusual character of its static susceptibility anisotropy. The AFMR line shifts to the high-field side and broadens in a temperature range of 10-15 K, and the cause of this has remained unclear. In the low-temperature range the line shows a hysteresis corresponding to a static field magnitude several times as large as the spin-flop field. The position and width of the AFMR line depend sensitively on the sample preparation technique. (C) 1998 American Institute of Physics.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : PANKRATS A. I., PETRAKOVSKII G. A., SABLINA K. A.
Заглавие : MICROWAVE RESONANCE-ABSORPTION IN ANTIFERROMAGNET BI2CUO4
Место публикации : Solid State Commun.: PERGAMON-ELSEVIER SCIENCE LTD, 1994. - Vol. 91, Is. 2. - P121-124. - ISSN 0038-1098, DOI 10.1016/0038-1098(94)90267-4
Примечания : Cited References: 13
Предметные рубрики: SINGLE-CRYSTAL
NEUTRON-SCATTERING
RANGE
Аннотация: The resonance absorption in Bi2CuO4 single crystals was found in the frequency range 35-80 GHz for H(perpendicular-to)C4 Case and it was absent for H(parallel-to)C4 case. The frequency-field dependence for H(perpendicular-to)C4 case at 4.2 K is typical for easy-plane antiferromagnets with weak magnetic anisotropy in this plane. In contrast to the sublattice magnetization of Bi2CuO4 the resonance parameters depend strongly on the temperature below 20 K. Besides, the resonance field has a considerable jump at TN which ls not typical for second order phase transitions.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrakovskii G. A., Sablina K. A., Vorotinov A. M., Vasiliev V. N., Kruglik A. I., Balaev A. D., Velikanov D. A., Kiselev N. I.
Заглавие : Magnetic, resonance, and electrical-properties of single-crystal and amorphous BI2CuO4
Место публикации : Solid State Commun. - 1991. - Vol. 79, Is. 4. - P.317-320. - ISSN 0038-1098, DOI 10.1016/0038-1098(91)90554-9
Примечания : Cited References: 7
Предметные рубрики: RANGE
Аннотация: Single crystal and amorphous samples Bi2CuO4 were prepared. The magnetic susceptibility, magnetization, magnetic resonance and electrical resistivity measurements for wide range of temperatures and magnetic fields are presented. The anisotropic exchange interactions and 3-d antiferromagnetic behaviour were revealed for single crystal Bi2CuO4. The effective magnetic moments per copper ion were determined. The sharp differences between single crystal and amorphous samples properties were shown.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Jiang, Xingxing, Molokeev M. S., Gong, Pifu, Yang, Y.i., Wang, Wei, Wang, Shuaihua, Wu, Shaofan, Wang, Yingxia, Huang, Rongjin, Li, Laifeng, Wu, Yicheng, Xing, Xianran, Lin, Zheshuai
Заглавие : Near-zero thermal expansion and high ultraviolet transparency in a borate crystal of Zn4B6O13
Коллективы : Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC); National Scientific Foundations of China [11474292, 51401224]; China "863" project [2015AA034203]
Место публикации : Adv. Mater.: Wiley-VCH Verlag, 2016. - Vol. 28, Is. 36. - P.7936-7940. - ISSN 0935-9648, DOI 10.1002/adma.201601816. - ISSN 1521-4095(eISSN)
Примечания : Cited References:38. - The authors acknowledge Zhuohong Yin for useful discussion and Dr. Siyang Luo for the help in crystal fabrication. This work was supported by the Special Foundation of the Director of Technical Institute of Physics and Chemistry (TIPC), the National Scientific Foundations of China (Grant 11474292 and 51401224), and China "863" project (No. 2015AA034203).
Предметные рубрики: ZN4O(BO2)6
TETRAHEDRA
BEHAVIOR
RANGE
Аннотация: Intrinsic isotropic near-zero thermal expansion is discovered in borate crystal Zn4B6O13 with high transparency in the ultraviolet region. First-principles calculations demonstrate that the very low thermal expansion originates mainly from the invariability of the solid [B24O48] truncated octahedra that are fixed by the [Zn4O13] clusters in the ZBO structure.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Fedorov A. S., Krasnov, Pavel O., Visotin M. A., Tomilin F. N., Polyutov, Sergey P.
Заглавие : Thermoelectric and Plasmonic Properties of Metal Nanoparticles Linked by Conductive Molecular Bridges
Коллективы : Russian Science FoundationRussian Science Foundation (RSF) [16-13-00060]; Ministry of Science and High Education of the Russian Federation; FSRZ-2020-0008 (plasmonic properties)
Место публикации : Phys. Status Solidi B. - 2020. - Vol. 257, Is. 12. - Ст.2000249. - ISSN 0370-1972, DOI 10.1002/pssb.202000249. - ISSN 1521-3951(eISSN)
Примечания : Cited References: 53. - This study was supported by the Russian Science Foundation, project no. 16-13-00060 (thermoelectric properties), and by the Ministry of Science and High Education of the Russian Federation, project no. FSRZ-2020-0008 (plasmonic properties)
Предметные рубрики: POLYMERS
ARRAYS
RANGE
Аннотация: Thermoelectric and plasmonic properties of systems comprising small golden nanoparticles (NPs) linked by narrow conductive polymer bridges are studied using the original hybrid quantum-classical model. The bridges are considered here to be either conjugated polyacetylene, polypyrrole, or polythiophene chain molecules terminated by thiol groups. The parameters required for the model are obtained using density functional theory and density functional tight-binding simulations. Charge-transfer plasmons in the considered dumbbell structures are found to possess frequency in the infrared region for all considered molecular linkers. The appearance of plasmon vibrations and the existence of charge flow through the conductive molecule, with manifestation of quantum properties, are confirmed using frequency-dependent polarizability calculations implemented in the coupled perturbed Kohn-Sham method. To study the thermoelectric properties of the 1D periodical systems, a universal equation for the Seebeck coefficient is derived. The phonon part of the thermal conductivity for the periodical -NP-S-C8H8- system is calculated by the classical molecular dynamics. The thermoelectric figure of meritZTis calculated by considering the electrical quantum conductivity of the systems in the ballistic regime. It is shown that forAu309nanoparticles connected by polyacetylene, polypyrrole, or polythiophene chains atT = 300 K, the ZTvalue is {0.08;0.45;0.40}, respectively.
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