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Каталог книг и брошюр библиотеки ИФ СО РАН

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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : KVASHNINA O. P., KAPITONOV A. M., SMOKOTIN E. M., TITOVA A. G.
Заглавие : ACOUSTIC PROPERTIES OF TERBIUM FERRITE-GARNET AT LOW-TEMPERATURES
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1984. - Vol. 26, Is. 8. - P2408-2410. - ISSN 0367-3294
Примечания : Cited References: 5
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vasilyeva I. G., Dovlitova L. S., Zaikovskii V. I., Malakhov V. V., Edel'man I. S., Stepanov A. S., Aleksandrov K. S.
Заглавие : Actual composition and structure of manganese ferrite nanoparticles dispersed in the borate glass matrix
Место публикации : Doklady Chemistry. - 2005. - Vol. 401, Is. 1-3. - P.47-50. - ISSN 0012-5008, DOI 10.1007/s10631-005-0029-y
Ключевые слова (''Своб.индексиров.''): boric acid--ferrite--glass--manganese derivative--analytic method--article--chemical composition--chemical structure--nanoparticle--stoichiometry--structure analysis--transmission electron microscopy--x ray analysis
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Stolyar S. V., Li O. A., Nikolaeva E. D., Vorotynov A. M., Velikanov D. A., Knyazev Yu. V., Bayukov O. A., Iskhakov R. S., P’yankov V. F., Volochaev M. N.
Заглавие : An effective method of magnetic hyperthermia based on the ferromagnetic resonance phenomenon
Место публикации : Phys. Met. Metallogr. - 2023. - Vol. 124, Is. 2. - P.174-180. - ISSN 0031918X (ISSN), DOI 10.1134/S0031918X22601834. - ISSN 15556190 (eISSN)
Примечания : Cited References: 15. - This study was supported by grant no. 22-14-20020 from the Russian Science Foundation and the Krasnoyarsk Regional Fund for Support of Scientific and Technological Activities. The authors are grateful to the Krasnoyarsk Regional Center for Collective Use at Federal Research Center Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, for providing their research facilities
Аннотация: Nickel and cobalt ferrite nanoparticles have been synthesized using the chemical precipitation method; the nanoparticle sizes were found to be 63 ± 22 and 26 ± 4 nm, respectively. The static hysteresis loops and Mossbauer spectra have been measured. It is shown that cobalt ferrite powders are magnetically harder than nickel ferrite powders. Ferromagnetic resonance (FMR) curves have been studied. It is found that the FMR absorption for cobalt ferrite is observed at room temperature and above. The time dependences of the nanoparticle warm-up under FMR conditions have been measured. The maximum temperature changes for nickel ferrite and cobalt ferrite particles are 8 and 11 K, respectively. Using the example of cobalt ferrite powder, the possibility of effectively heating of particles in the FMR mode in their own field without using a DC magnetic field source is shown. The observed effect can be used in magnetic hyperthermia.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev A. D., Vasilev V. N., Matveiko E. N.
Заглавие : Study of magnetic static properties of beta-type potassium ferrite monocrystals
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1996. - Vol. 38, Is. 11. - P3427-3429. - ISSN 0367-3294
Примечания : Cited References: 5
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Komogortsev S. V., Patrusheva T. N., Balaev D. A., Denisova E. A., Ponomarenko I. V.
Заглавие : Cobalt ferrite nanoparticles in a mesoporous silicon dioxide matrix
Коллективы : Development of the Scientific Potential of Higher Education [RNP. 2.1.1/2584]; Krasnoyarsk Regional Science Foundation; Russian Foundation for Basic Research [r-Enisei-a 03-07-96803, 09-02-98002-r_sibir'_a]
Место публикации : Tech. Phys. Lett. - 2009. - Vol. 35, Is. 10. - P.882-884. - ISSN 1063-7850, DOI 10.1134/S1063785009100022
Примечания : Cited References: 10. - This study was supported in part by the Federal Program "Development of the Scientific Potential of Higher Education" (project no. RNP. 2.1.1/2584) and jointly by the Krasnoyarsk Regional Science Foundation and the Russian Foundation for Basic Research (project nos. r-Enisei-a 03-07-96803 and 09-02-98002-r_sibir'_a).
Предметные рубрики: MAGNETIC-PROPERTIES
NANOSIZED COFE2O4
ANISOTROPY
POWDERS
CURVES
Аннотация: We have studied magnetic nanoparticles of cobalt ferrite obtained by the extraction-pyrolysis method in a mesoporous silicon dioxide (MSM-41) molecular sieve matrix. The X-ray diffraction data show evidence for the formation of CoFe(2)O(4) particles with a coherent scattering domain size of similar to 40 nm. Measurements of the magnetization curves showed that powders consisting of these nanoparticles are magnetically hard materials with a coercive field of H (c)(4.2 K) = 9.0 kOe and H (c)(300 K) = 1.8 kOe and a reduced remanent magnetization of M (r)/M (s)(4.2 K) = 0.83 and M (r)/M (s)(300 K) = 0.49. The shape of the low-temperature (4.2 K) magnetization curves is adequately described in terms of the Stoner-Wohlfarth model for randomly oriented single-domain particles with a cubic magnetic anisotropy.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Aplesnin S. S., Masyugin A. N., Volochaev M. N., Ishibashi T.
Заглавие : Coexistence of the electric polarization and conductive current in the bismuth–neodymium ferrite garnet films
Место публикации : J. Mater. Sci. Mater. Electron. - 2021. - Vol. 32. - P.3766-3781. - ISSN 09574522 (ISSN), DOI 10.1007/s10854-020-05121-9
Примечания : Cited References: 42
Аннотация: The Nd1Bi2Fe5O12/Nd2Bi1Fe4Ga1O12 polycrystalline films on the glass substrate and the Nd0.5Bi2.5Fe5O12 epitaxial films on the single-crystal gadolinium gallium garnet substrate have been investigated by impedance and dielectric spectroscopy. The inductive contribution to the impedance and two relaxation channels related to ferroelectric domains and migration polarization have been established. The magnetocapacitance and magnetoimpedance have been determined. The conductive and polarization currents and the phase difference between them for the films of two types have been determined. The critical temperatures of the polarization disappearance and hysteresis I–V have been found. A model of the polarization caused by the piezoelectric effect and flexoelectric interaction has been proposed. I–V hysteresis is explained by the presence of ferroelectric domains near the interface and is associated with the hysteresis of the electric polarization.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Saikova, Svetlana, Pavlikov, Aleksandr, Karpov, Denis, Samoilo, Aleksandr, Kirik, Sergey, Volochaev M. N., Trofimova, Tatyana, Velikanov D. A., Kuklin, Artem
Заглавие : Copper ferrite nanoparticles synthesized using anion-exchange Resin: Influence of synthesis parameters on the cubic phase stability
Место публикации : Materials. - 2023. - Vol. 16, Is. 6. - Ст.2318. - ISSN 19961944 (eISSN), DOI 10.3390/ma16062318
Примечания : Cited References: 67. - The Russian team acknowledges the support of the Russian Science Foundation (Project 22-73-10047)
Аннотация: Copper ferrite is of great interest to researchers as a material with unique magnetic, optical, catalytic, and structural properties. In particular, the magnetic properties of this material are structurally sensitive and can be tuned by changing the distribution of Cu and Fe cations in octahedral and tetrahedral positions by controlling the synthesis parameters. In this study, we propose a new, simple, and convenient method for the synthesis of copper ferrite nanoparticles using a strongly basic anion-exchange resin in the OH form. The effect and possible mechanism of polysaccharide addition on the elemental composition, yield, and particle size of CuFe2O4 are investigated and discussed. It is shown that anion-exchange resin precipitation leads to a mixture of unstable cubic (c-CuFe2O4) phases at standard temperature and stable tetragonal (t-CuFe2O4) phases. The effect of reaction conditions on the stability of c-CuFe2O4 is studied by temperature-dependent XRD measurements and discussed in terms of cation distribution, cooperative Jahn–Teller distortion, and Cu2+ and oxygen vacancies in the copper ferrite lattice. The observed differences in the values of the saturation magnetization and coercivity of the prepared samples are explained in terms of variations in the particle size and structural properties of copper ferrite.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Balaev D. A., Poperechny I. S., Krasikov A. A., Semenov S. V., Popkov S. I., Knyazev Yu. V., Kirillov V. L., Yakushkin S. S., Martyanov O. N., Raikher Y. L.
Заглавие : Dynamic remagnetisation of CoFe2O4 nanoparticles: thermal fluctuational thawing of anisotropy
Коллективы : [AAAA-A17-117103050081-1]; [AAAAA20-120020690030-5]
Место публикации : J. Phys. D. - 2021. - Vol. 54, Is. 27. - Ст.275003. - ISSN 0022-3727, DOI 10.1088/1361-6463/abf371. - ISSN 1361-6463(eISSN)
Примечания : Cited References: 63. - Experimental measurements were supported by Project No. AAAA-A17-117103050081-1. I S P and Yu L R acknowledge the support of ICMM in the framework of topical task AAAAA20-120020690030-5. The numerical calculations were performed on the Uran supercomputer (Ural Branch, Russian Academy of Sciences, Ekaterinburg)
Предметные рубрики: COBALT-FERRITE NANOPARTICLES
MAGNETIC-PROPERTIES
SIZE
COERCIVITY
Аннотация: We report a study of the magnetodynamics of cobalt ferrite (CoFe2O4) nanoparticles with an average diameter of ~6 nm. Hysteresis loops were measured under quasi-static conditions and in pulse fields with amplitudes H0 of up to 130 kOe and for durations τP of 8 and 16 ms. The growth of coercivity Hc observed with an increase in the magnetic field variation rate dH/dt (determined by the values of H0 and τP) and the reduction of Hc with temperature is ascribed to the superparamagnetic effect. The proposed theoretical model explains the observed dependences fairly well. Notably, the effective magnetic anisotropy constant obtained exceeds the value for bulk crystals and might be indicative of the contribution of surface magnetic anisotropy.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Dudnikov V. A., Orlov Yu. S., Fedorov A. S., Solovyov L., Vereshchagin S., Burkov A. T., Novikov S., Ovchinnikov S. G.
Заглавие : Effect of oxygen nonstoichiometry on electrical conductivity and thermopower of Gd0.2Sr0.8FeO3-δ ferrite samples
Место публикации : Materials. - 2019. - Vol. 12, Is. 1. - Ст.74. - ISSN 19961944 (ISSN), DOI 10.3390/ma12010074
Примечания : Cited References: 24
Аннотация: The behavior of the resistivity and thermopower of the Gd0.2Sr0.8FeO3−δ ferrite samples with a perovskite structure and the sample stability in an inert gas atmosphere in the temperature range of 300–800 K have been examined. It has been established that, in the investigated temperature range, the thermoelectric properties in the heating‒cooling mode are stabilized at δ ≥ 0.21. It is shown that the temperature dependencies of the resistivity obtained at different δ values obey the activation law up to the temperatures corresponding to the intense oxygen removal from a sample. The semiconductor‒semiconductor electronic transitions accompanied by a decrease in the activation energy have been observed with increasing temperature. It is demonstrated that the maximum thermoelectric power factor of 0.1 µW/(cm·K2) corresponds to a temperature of T = 800 K.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Lepeshev A. A., Saunin V. N., Telegin S. V., Polyakova K. P., Seredkin V. A., Polsky A. I.
Заглавие : Ferrite and high-temperature superconductor targets for sputtering
Место публикации : Tech. Phys.: AMER INST PHYSICS, 2000. - Vol. 45, Is. 5. - P653-655. - ISSN 1063-7842, DOI 10.1134/1.1259696
Примечания : Cited References: 6
Аннотация: A method is described of preparing targets for sputtering, which involves the use of plasma deposition of respective powders onto a cooled metal plate. It is demonstrated that the use of plasma technology enables one to produce, in a controlled atmosphere, intricately shaped ceramic targets characterized by a highly uniform composition and by reliable mechanical and thermal contact of the resultant coating with the holder plate. Experiments are performed on the sputtering of targets to prepare polycrystalline ferrite films for magnetooptical applications and epitaxial films of high-temperature superconductors. (C) 2000 MAIK "Nauka/Interperiodica".
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