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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ponomarev V. I., Kuzmin E. V.
Заглавие : Microstructure and magnetic-properties of disordered magnetic with competing exchange interactions
Место публикации : Zhurnal Tek. Fiz. - 1983. - Vol. 53, Is. 8. - P.1643-1645. - ISSN 0044-4642
Примечания : Cited References: 4
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Komogortsev S. V., Moroz Z. M., Shalygina E. E.
Заглавие : Characteristics of the magnetic microstructure of amorphous and nanocrystalline ferromagnets with a random anisotropy: Theoretical estimates and experiment
Место публикации : JETP Letters. - 2000. - Vol. 72, Is. 12. - P.603-607. - ISSN 0021-3640, DOI 10.1134/1.1351199
Примечания : Cited References: 22
Предметные рубрики: ALLOYS
Аннотация: An experimental determination (both direct and indirect) of the characteristics of the magnetic microstructure, namely, the ferromagnetic correlation radius R-f and the rms fluctuation of the mean anisotropy D-1/2H-a, is performed for amorphous and nanocrystalline ferromagnets with a random anisotropy characterized by the quantities R-c and (DHa)-H-1/2, respectively. The magnetization curves of amorphous and nanocrystalline ferromagnets are found to exhibit a dependence on H that is caused by the alignment of the magnetizations of individual magnetic blocks with the field. (C) 2000 MAIK "Nauka/Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kveglis L. I., Jarkov S. M., Staroverova I. V.
Заглавие : Structural self-organization and the formation of perpendicular magnetic anisotropy in Co50Pd50 nanocrystalline films
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2001. - Vol. 43, Is. 8. - P1543-1548. - ISSN 1063-7834, DOI 10.1134/1.1395099
Примечания : Cited References: 22
Предметные рубрики: METAL THIN-FILMS
MICROSTRUCTURE
Аннотация: The correlation of the atomic-order structure and the energy density of perpendicular magnetic anisotropy in Co50Pd50 films is investigated. Structural models for nanocrystalline Co50Pd50 films are proposed. It is shown that processes of structural self-organization in the films form nontrivial atomic-order structures. These structures can exist owing to high elastic stresses, which apparently ensure the emergence of strong magnetic anisotropy (K-perpendicular to similar to 10(6) erg/cm(3)). (C) 2001 MAIK "Nauka/Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Tetyueva T. N., Kveglis L. I., Efremov A. A., Zeer G. M., Shaihutdinov K. A., Balaev D. A., Popkov S. I., Ovchinnikov S. G.
Заглавие : Synthesis, microstructure, and the transport and magnetic properties of bi-containing high-temperature superconductors with a porous structure
Место публикации : Tech. Phys. Lett.: AMER INST PHYSICS, 2003. - Vol. 29, Is. 12. - P986-988. - ISSN 1063-7850, DOI 10.1134/1.1639450
Примечания : Cited References: 5
Аннотация: Preliminary data on the synthesis and physical properties of polycrystalline Bi1.8Pb0.3Sr2Ca2Cu3Ox high-temperature superconductors of low density with a foam-like microstructure are reported. (C) 2003 MAIK "Nauka / Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Frolov G. I., Zhigalov V. S., Zharkov S. M., Pol'skii A. I., Kirgizov V. V.
Заглавие : Microstructure and properties of Co-Sm-O nanogranular films
Разночтения заглавия :авие SCOPUS: Microstructure and Properties of Co-Sm-O Nanogranular Films
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2003. - Vol. 45, Is. 12. - P2303-2308. - ISSN 1063-7834, DOI 10.1134/1.1635502
Примечания : Cited References: 17
Предметные рубрики: NANOCRYSTALLINE COBALT FILMS
MAGNETIC-PROPERTIES
IRON FILMS
Аннотация: The effect of annealing on the structure and physical properties of Co-Sm-O alloy films prepared using pulsed plasma deposition is investigated. It is found that Co-Sm-O films in the initial state possess superparamagnetic properties due to the presence of small-sized magnetic nanoparticles surrounded by dielectric layers of samarium oxide in the film structure. Upon annealing, the Co-Sm-O films undergo structural transformations and exhibit a number of magnetic properties (including those inherent in both soft and hard magnetic materials). (C) 2003 MAIK "Nauka / Interperiodica".
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Tetyueva T. N., Kveglis L. I., Efremov A. A., Balaev D. A., Shaikhutdinov K. A., Popkov S. I., Ovchinnikov S. G., Zeer E. P.
Заглавие : The synthesis, microstructure, transport and magnetic properties of Bi-based low density HTSC
Коллективы : Japanese/Mediterranean Workshop on Applied Electronmagnetic Engineering for Magnetic and Superconducting Materials/3rd Superconducting Flywheel Workshop
Место публикации : J. Mater. Process. Technol. - LAUSANNE: ELSEVIER SCIENCE SA, 2005. - Vol. 161, Is. 1-2. - С. 58-61. - APR 10. - ISSN 0924-0136, DOI 10.1016/j.jmatprotec.2004.07.056
Примечания : Cited Reference Count: 4
Аннотация: HTSC Bi1.8Pb0.3Sr2Ca2Cu3Ox of low density has been synthesized and its structural and physical properties have been studied. Scanning electron microscopy (SEM) image shows that the material obtained has porous "foam" structure. The levitation force measured for the porous Bi1.8Pb0.3Sr2Ca2Cu3Ox is appeared to be approximately the same as for polycrystalline YBCO of high density. These "foam" structures may be an ideal material for some practical applications of HTSCs in bulk form. (c) 2004 Elsevier B.V. All rights reserved.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Komogortsev S. V., Iskhakov R. S.
Заглавие : Magnetization curve and magnetic correlations in a nanochain of ferromagnetic grains with random anisotropy
Место публикации : Phys. Solid State: AMER INST PHYSICS, 2005. - Vol. 47, Is. 3. - P495-501. - ISSN 1063-7834, DOI 10.1134/1.1884711
Примечания : Cited References: 31
Предметные рубрики: NANOCRYSTALLINE FERROMAGNETS
AMORPHOUS FERROMAGNETS
FIELD
MODEL
MICROSTRUCTURE
SIMULATIONS
DEPENDENCE
SYMMETRY
SYSTEM
MEDIA
Аннотация: The magnetization curve and magnetization correlation function are calculated for a ferromagnetic chain of single-domain nanoparticles with a randomly oriented anisotropy axis for different ratios between the exchange correlation and anisotropy energies. It is shown that the coercive force decreases as the exchange correlations increase. For strong exchange correlations, the magnetization curve is described by the following three successive magnetization processes as the applied field is increased: (i) nonuniform rotation of the magnetization of stochastic domains, (ii) collapse of the magnetic solitons, and (iii) nonuniform rotation of exchange-correlated magnetization vectors of the nanoparticles. For high fields, the calculated correlation function of the transverse magnetization components coincides with that predicted from linear theory. At low and zero fields, the main parameters of the correlation function (the variance and correlation radius) tend to certain finite values rather than diverge (as is the case in linear theory). The irreversible variation in the magnetization at low fields (the hysteresis loop) and the hysteresis of the main parameters of the correlation function are calculated. (c) 2005 Pleiades Publishing, Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev D. A., Prus A. G., Shaikhutdinov K. A., Petrov M. I.
Заглавие : Angular dependence of the magnetoresistance in Y3/4Lu1/4Ba2Cu3O7-CuO composites at 77 K
Разночтения заглавия :авие SCOPUS: Angular dependence of the magnetoresistance in Y3/4Lu 1/4Ba2Cu3O7-CuO composites at 77 K
Место публикации : Tech. Phys. Lett.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2006. - Vol. 32, Is. 8. - P677-679. - ISSN 1063-7850, DOI 10.1134/S1063785006080128
Примечания : Cited References: 16
Предметные 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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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Balaev D. A., Belozerova I. L., Vasil'ev A. D., Gokhfel'd D. M., Mart'yanov O. N., Popkov S. I., Shaihutdinov K. A.
Заглавие : Highly textured bismuth-containing high-temperature superconductor ceramics obtained by uniaxial pressing in liquid medium: Fabrication and properties
Место публикации : Tech. Phys. Lett.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2007. - Vol. 33, Is. 9. - P740-743. - ISSN 1063-7850, DOI 10.1134/S1063785007090088
Примечания : Cited References: 12
Предметные рубрики: MICROSTRUCTURE
MAGNETIZATION
Аннотация: A new method of fabricating textured ceramics with a composition of Bi1.8Pb0.3Sr1.9Ca2Cu3Ox is described, according to which the initial low-density ceramics is subjected to uniaxial pressing in a liquid medium followed by drying and annealing. Analysis of the X-ray diffraction and scanning electron microscopy data show evidence for a high degree of texture in high-temperature superconductor ceramics fabricated using the proposed method. The results of magnetic measurements indicate that the obtained material possesses anisotropy of the magnetic moment for the magnetic field H oriented parallel and perpendicular to the direction of uniaxial pressing. The textured ceramics also show high diamagnetic response for H parallel to the c axis of grains, which makes these ceramics promising materials for practical applications.
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10.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Iskhakov R. S., Komogortsev S. V., Denisova E. A., Chekanova L. A., Kalinin Yu. E., Sitnikov A. V.
Заглавие : Magnetic microstructure in the Co41Fe39B20-SiO2, Co-SiO2, Co-CaF nanocomposite films
Коллективы : Moscow International Symposium on Magnetism, Московский государственный университет им. М.В. Ломоносова, Российский фонд фундаментальных исследований
Место публикации : Moscow Int. Symp. on Magnet. (MISM-2008): June 20-25, 2008, Moscow : book of abstract. - 2008. - Ст.22PO-8-46. - p.299
Примечания : Support by the grant RFBR 07-02-01172-а; National Science Fund (2008, PhD RAS) are acknowledged
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Petrov M. I., Belozerova I. L., Shaikhutdinov K. A., Balaev D. A., Dubrovskii A. A., Popkov S. I., Vasil'ev A. D., Mart'yanov O. N.
Заглавие : Preparation, microstructure, magnetic and transport properties of bulk textured Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x) and Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x)+Agceramics
Коллективы :
Разночтения заглавия :авие SCOPUS: Preparation, microstructure, magnetic and transport properties of bulk textured Bi1.8Pb0.3Sr1.9Ca2Cu 3Ox and Bi1.8Pb0.3Sr 1.9Ca2Cu3Ox+Ag ceramics
Место публикации : Supercond. Sci. Technol.: IOP PUBLISHING LTD, 2008. - Vol. 21, Is. 10. - Ст.105019. - ISSN 0953-2048, DOI 10.1088/0953-2048/21/10/105019
Примечания : Cited References: 22. - This work is supported by program of RAS 'Quantum macrophysics' No. 3.4 and integration project of SB RAS No. 3.4 and in part by Krasnoyarsk Regional Scientific Foundation (KRSF), Grants 17G057, 18G148 and 18G011. DAB and AAD acknowledge the Russian Science Support Foundation.
Предметные рубрики: HIGH-TEMPERATURE SUPERCONDUCTORS
CRITICAL-CURRENT DENSITY
BI-2223 TAPES
BI2223
SILVER
DISCS
(BI
Ключевые слова (''Своб.индексиров.''): building materials--calcium--copper--crystallites--diamagnetic materials--lead--lead alloys--magnetic anisotropy--magnetic properties--nanocrystalline alloys--silver--textures--transport properties--bi-2223--bulk samples--degree of textures--diamagnetic responses--liquid mediums--magnetic and transport properties--magnetic measurements--room temperatures--ceramic materials
Аннотация: A new method of preparation of bulk textured Bi2223 ceramics and Bi2223 + Ag composites, based on room temperature pressing of foamed precursor (Bi2223, Bi2223 + Ag) in a liquid medium, is proposed. SEM and XRD data prove a high degree of texture of the bulk samples obtained. Magnetic measurements performed in directions H parallel to c-axis and H parallel to a-b-planes of Bi2223 crystallites demonstrates anisotropy of magnetization confirming the texture of the ceramics. The materials obtained possess large diamagnetic response in the direction H parallel to a-b-planes of Bi2223 crystallites at both 77.4 and 4.2 K.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Mikhlin Y. N., Bykova L. E., Mal'tsev V. K., Bondarenko G. N.
Заглавие : Long-Range Chemical Interaction in Solid-State Synthesis: The Formation of a CuAu Alloy in Au/beta-Co(001)/Cu(001) Epitaxial Film Structures
Коллективы : Russian Foundation for Basic Research [07-03-00190]; Ministry of Education and Science of the Russian Federation
Разночтения заглавия :авие SCOPUS: Long-range chemical interaction in solid-state synthesis: The formation of a CuAu alloy in Au/β-Co(001)/Cu(001) epitaxial film structures
Место публикации : JETP Letters. - 2009. - Vol. 90, Is. 2. - P.111-115. - ISSN 0021-3640, DOI 10.1134/S0021364009140069
Примечания : Cited References: 25. - This work was supported by Russian Foundation for Basic Research ( project no. 07-03-00190) and the Ministry of Education and Science of the Russian Federation ( program "Development of the Scientific Potential of Higher Education").
Предметные рубрики: THIN-FILMS
PHASE-TRANSITION
DIFFUSION
MICROSTRUCTURE
INTERLAYER
INTERFACE
COSI2
AU
Аннотация: The effect of an inert Co layer (0, 210, 480 nm) on the chemical interaction between Cu and Au in Au/beta-Co(001)/Cu(001) epitaxial films has been investigated by X-ray diffraction, nuclear magnetic resonance, photoelectron spectroscopy, and magnetic structure measurements. Mixing at interfaces in Cu/beta-Co(001) and Au/beta-Co(001) bilayer films has not been revealed up to a temperature of 600 C. The solid-state synthesis of ordered CuAu| and CuAu|| phases occurs through the Co inert buffer layer in Au/beta-Co(001)/Cu(001) trilayer film systems with an increase in the annealing temperature. The initiation temperatures of the CuAu| and CuAu|| phases increase only slightly with the thickness of the Co buffer layer. The assumption of the long range of the chemical interaction between Cu and Au through the chemically inert Co layer is justified using the performed investigations.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shaikhutdinov K. A., Balaev D. A., Popkov S. I., Petrov M. I.
Заглавие : Mechanism of Formation of a Negative Magnetoresistance Region in Granular High-Temperature Superconductors
Коллективы : Russian Academy of Sciences [3.4]; Russian Science Support Foundation
Место публикации : Phys. Solid State: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2009. - Vol. 51, Is. 6. - P1105-1109. - ISSN 1063-7834, DOI 10.1134/S106378340906002X
Примечания : Cited References: 18. - This study was supported by the Russian Academy of Sciences within the program no. 3.4 (Quantum Macrophysics) and the complex integration program of the Siberian Branch of the Russian Academy of Sciences (program no. 3.4). One of the authors (D. A. B.) is grateful to the Russian Science Support Foundation.
Предметные рубрики: MAGNETIC-FIELD
CRITICAL-STATE
YBA2CU3O7-DELTA
HYSTERESIS
MICROSTRUCTURE
COMPOSITES
RESISTANCE
FLUX
Аннотация: The field dependences of the magnetoresistance of Bi(1.8)Pb(0.3)Sr(1.9)Ca(2)Cu(3)O(x) samples with different densities, which have a foam microstructure and exhibit different diamagnetic responses, were studied at 77.4 K to identify the mechanism responsible for the formation of a negative magnetoresistance region in granular high-temperature superconductors. A region with negative magnetoresistance was found to exist in samples with magnetizations highest in absolute magnitude. This behavior finds a reasonable interpretation as due to the effect exerted by dipole moments of high-temperature superconductor grains on the effective intergranular field. The strength of this effective field has been estimated.
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14.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Denisova E. A., Komogortsev S. V., Chekanova L. A., Kalinin Y. E., Sitnikov A. V.
Заглавие : Ferromagnetic Resonance and Magnetic Microstructure in Nanocomposite Films of Co-x(SiO2)(1-x) and (CoFeB)(x)(SiO2)(1-x)
Коллективы :
Разночтения заглавия :авие SCOPUS: Ferromagnetic resonance and magnetic microstructure in nanocomposite films of Cox(SiO2)1 - x and (CoFeB)x(SiO2)1 - x
Место публикации : Phys. Solid State: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2010. - Vol. 52, Is. 11. - P2263-2266. - ISSN 1063-7834, DOI 10.1134/S1063783410110089
Примечания : Cited References: 10. - This study was supported by the Ministry of Education and Science of the Russian Federation within the framework of the program "Development of the Scientific Potential of the Higher School" (project nos. RNP.2.1.1/2584 and RNP.2.1.1/3498) and the Russian Foundation for Basic Research (project no. 09-02-98002r_sibir_a).
Предметные рубрики: RANDOM ANISOTROPY
Аннотация: This paper reports on the results of the investigation of the relation between the magnetic microstructure and ferromagnetic resonance (FMR) in ferromagnetic metal-insulator composites by using granular alloys (Co41Fe39B20) (x) (SiO2)(1 - x) and Co (x) (SiO2)(1 - x) as an example. A comparative analysis of the properties of FMR spectra and parameters of random magnetic anisotropy leads to correlations between these quantities. It has been found that the main mechanism that determines the FMR line width in the films under investigation is the exchange narrowing mechanism.
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R.S., Komogortsev S.V.
Заглавие : Magnetic microstructure of amorphous, nanocrystalline, and nanophase ferromagnets
Место публикации : Phys. Metals Metallogr. - NEW YORK: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011. - Vol. 112, Is. 7. - С. 666-681. - DEC. - ISSN 0031-918X, DOI 10.1134/S0031918X11070064
Примечания : Cited Reference Count: 40. - Federal Program Development of the Scientific Potential of Higher Education [RNP. 2.1.1/11470], This work was supported in part by the Federal Program Development of the Scientific Potential of Higher Education ( project no. RNP. 2.1.1/11470), Federal Target Program Research and Research-Pedogogical Personnel of Innovative Russia for 2009-2014.
Предметные рубрики: Metallurgy & Metallurgical Engineering
Аннотация: The magnetic microstructure of nanostructured ferromagnets is represented by an ensemble of stochastic magnetic domains-regions with dimensions of the length of magnetic orientation coherency. It is shown that the curves displaying the approach of magnetization to saturation make it possible to determine the dimension of the element of the micromagnetic structure, i.e., the size of the stochastic domain and the constant of the effective anisotropy in this element, the size of the element of the nanostructure and the constant its local anisotropy, as well as the dimensionality of the exchange-coupled ferromagnetic nanoparticles.
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16.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Edel'man I. S., Petrov D. A., Ivantsov R. D., Zharkov S. M., Khaibullin R. I., Valeev V. F., Nuzhdin V. I., Stepanov A. L.
Заглавие : Microstructure and Magnetooptics of Silicon Oxide with Implanted Nickel Nanoparticles
Разночтения заглавия :авие SCOPUS: Microstructure and magnetooptics of silicon oxide with implanted nickel nanoparticles
Место публикации : J. Exp. Theor. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2011. - Vol. 113, Is. 6. - P1040-1049. - ISSN 1063-7761, DOI 10.1134/S1063776111160035
Примечания : Cited References: 44. - This work was supported by the Russian Foundation for Basic Research (project nos. 11-02-00972, 11-02-90420, 11-02-91341) and the program Research and Scientific-Pedagogical Brainpower of Innovated Russia (State contract 02.740.11.0797).
Предметные рубрики: SIMPLE METAL-CLUSTERS
OPTICAL-PROPERTIES
ION-IMPLANTATION
FARADAY-ROTATION
KERR SPECTRA
GLASS
RESONANCE
PHYSICS
ENERGY
FE
Ключевые слова (''Своб.индексиров.''): disperse structure--effective medium model--implanted samples--irradiation dose--magnetic circular dichroisms--magnetic nickel--magneto-optical faraday effect--magneto-optical measurements--matrix--metal nanoparticles--metallic nickel--nickel nanoparticles--nickel particles--optical range--spectral dependences--surface plasma resonances--tensor components--thin near-surface layers--amorphous silicon--crystal microstructure--dichroism--faraday effect--ion implantation--magnetoplasma--metallic compounds--nanomagnetics--nanoparticles--nickel--silicon compounds--silicon oxides--spectroscopy--tensors--transmission electron microscopy--nickel oxide
Аннотация: Metallic nickel nanoparticles of various sizes are formed in a thin near-surface layer in an amorphous SiO2 matrix during 40-keV Ni+ ion implantation at a dose of (0.25-1.0) x 10(17) ions/cm(2). The micro-structure of the irradiated layer and the crystal structure, morphology, and sizes of nickel particles formed at various irradiation doses are studied by transmission electron microscopy and electron diffraction. The magnetooptical Faraday effect and the magnetic circular dichroism in an ensemble of nickel nanoparticles are studied in the optical range. The permittivity (epsilon) over cap tensor components are calculated for the implanted samples using an effective medium model with allowance for the results of magnetooptical measurements. The spectral dependences of the tensor (epsilon) over cap components are found to be strongly different from those of a continuous metallic nickel film. These differences are related to a disperse structure of the magnetic nickel phase and to a surface plasma resonance in the metal nanoparticles.
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17.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Atuchin V. V., Gavrilova T. A., Isaenko L. I., Kesler V. G., Molokeev M. S., Zhurkov S. A.
Заглавие : Synthesis and structural properties of cubic G0-Rb2KMoO3F3 oxyfluoride
Место публикации : Ceram. Int.: Elsevier, 2012. - Vol. 38, Is. 3. - P.2455-2459. - ISSN 0272-8842, DOI 10.1016/j.ceramint.2011.11.013
Примечания : Cited References: 23. - This study was partly supported by RFBR (Grant 09-02-00062) and SB RAS (Grant 34).
Предметные рубрики: PHASE-TRANSITIONS
FERROELECTRIC K3WO3F3
(NH4)(3)MOO3F3
TEMPERATURE
PEROVSKITE
ELPASOLITE
CRYSTALS
BEHAVIOR
High temperature
Melt solidification
Micromorphologies
Melt solidification
Microstructure-final
Oxyfluorides
Space Groups
Oxyfluorides
X ray methods
Ключевые слова (''Своб.индексиров.''): powders: solid state reaction--microstructure-final--x-ray methods--alkali oxides--halides
Аннотация: High-temperature G0 polymorph of Rb2KMoO3F3 has been prepared by melt solidification. Micromorphology and chemical properties of the final product were evaluated by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The elpasolite-related crystal structure of G0-Rb2KMoO3F3 has been refined by Rietveld method at T = 298 K (space group Fm-3m, a = 8.92446(8) Å, V = 710.76(1) Å3; RB = 3.55%). Ferroelectric G1-Rb2KMoO3F3 polymorph, earlier reported at T˂328 K, is not found at T = 298 K.
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18.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Gavrilova T. A., Atuchin V. V., Isaenko L. I., Kesler V. G., Molokeev M. S., Zhurkov S.A.
Заглавие : Synthesis and microstructure of cubic G0-Rb2MoO3F3 oxyfluoride
Коллективы : Сибирский федеральный университет, Научный совет по аналитической химии Сибирского отделения Российской академии наук, Сибирское отделение РАН, Российская академия наук, "Аналитика Сибири и Дальнего Востока", научная конференция (9; 8-13 октября 2012; Красноярск, Россия)
Место публикации : Тезисы IX научной конференции «Аналитика Сибири и Дальнего востока». - 2012. - P.221
http://conf.sfu-kras.ru/conf/asfe12/sect?sec_id=690
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19.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Изотов, Андрей Викторович, Беляев, Борис Афанасьевич, Боев Н. М.
Заглавие : Численное моделирование магнитной микроструктуры тонких нанокристаллических пленок со случайным распределением осей
Место публикации : Изв. вузов. Физика. - 2013. - Т. 56, № 8/2. - С. 213-216
Примечания : Работа выполнена при финансовой поддержке Министерства образования и науки РФ, Госконтракт № 14.513.11.0010, и ФЦП «Научные и научно-педагогические кадры инновационной России 2009−2013 гг.»
Ключевые слова (''Своб.индексиров.''): микромагнитное моделирование--«рябь» намагниченности--магнитная микроструктура --хаотическая анизотропия--нанокристаллиты--micromagnetic simulation--magnetization ripple--magnetic microstructure--random anisotropy--nanocrystallites
Аннотация: На основе численного анализа микромагнитной модели нанокристаллической пленки со случайным распределением направлений одноосной магнитной анизотропии в кристаллитах исследована тонкая магнитная микроструктура типа «ряби» намагниченности. Приводится сравнение полученных результатов с результатами теоретических исследований.The fine magnetic microstructure of the magnetization "ripple" was studied by a numerical analysis of micromagnetic model of nanocrystalline films with a random distribution of directions of the uniaxial magnetic anisotropy in crystallites. Obtained results were compared with the results of theoretical studies.
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20.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Denisova E. A., Chekanova L. A., Iskhakov R. S., Bondarenko G. N.
Заглавие : Microstructure and magnetic properties of C/Co-P and Al2O3/Co-P composite particles prepared by electroless plating
Место публикации : J. Appl. Phys. - 2013. - Vol. 113, Is. 17. - Ст.17A340. - P. - DOI 10.1063/1.4800037
Аннотация: The electroless plating is used to synthesize two types of composite powder, such as the activated carbon with pores filled by Co100-XPX particles and the Al2O3 microgranular coated by the shell which consists of Co100-XPX particles with 4 X 18. The magnetic and structural properties of the composite particles are characterized by scanning electron microscopy, X-ray diffraction, and vibrating sample magnetometer. It is found that the average Co(P) particle size in composite powders decreases from 300 nm to 120 nm with an increase in P- content from 4 to 18 at. %. It causes a reduction in coercivity from 300 to 80 Oe for Al2O3/Co(P) powders and from 680 to 150 Oe for C/Co(P) powders. The effects of two methods of immobilization of Co(P) particles on magnetic properties are studied.
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