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 1-10    11-15 
1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : BAYUKOV O. A., SAVITSKII A. F.
Заглавие : PREDICTION OF MAGNETIC-PROPERTIES OF DIELECTRICS IS POSSIBLE
Место публикации : Fiz. Tverd. Tela: MEZHDUNARODNAYA KNIGA, 1994. - Vol. 36, Is. 7. - P1923-1938. - ISSN 0367-3294
Примечания : Cited References: 54
Предметные рубрики: EXCHANGE INTERACTIONS
METAL-IONS
WOS
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bayukov O. A., Savitskii A. F.
Заглавие : The prognostication possibility of some magnetic-properties for dielectrics on the basis of covalency parameters of ligand cation bonds
Место публикации : Phys. Status Solidi B. - 1989. - Vol. 155, Is. 1. - P.249-255. - ISSN 0370-1972, DOI 10.1002/pssb.2221550125
Примечания : Cited References: 27
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sofronova S. N., Moshkina E. M., Nazarenko I. I., Seryotkin Yu. V., Nepijko S. A., Ksenofontov V., Medjanik K., Veligzhanin A. A., Bezmaternykh L. N.
Заглавие : Crystal growth, structure, magnetic properties and theoretical exchange interaction calculations of Cu2MnBO5
Место публикации : J. Magn. Magn. Mater.: Elsevier, 2016. - Vol. 420. - P.309-316. - ISSN 03048853 (ISSN), DOI 10.1016/j.jmmm.2016.07.019
Примечания : Cited References: 35. - X-ray diffraction experiment was carried out at the Centre on Molecular Design and Ecologically Safe Technologies at the Novosibirsk State University. The reported study was funded by Russian Foundation for Basic Research (RFBR) and Government of Krasnoyarsk Territory according to the research project No. 16-42-243028.
Предметные рубрики: SPIN-GLASS BEHAVIOR
SINGLE-CRYSTALS
SUPEREXCHANGE INTERACTIONS
LUDWIGITE
DIELECTRICS
CO3B2O6NI3B2O6
WARWICKITES
FE3O2BO3
IFEFFIT
NI3B2O6
Ключевые слова (''Своб.индексиров.''): oxyborates--ludwigites--xmcd--exafs--magnetism
Аннотация: Single crystals of ludwigite Cu2MnBO5 were synthesized by flux growth technique. The detailed structural and magnetic characterizations of the synthesized samples have been carried out. The cations composition of the studied crystal was determined using X-ray diffraction and EXAFS technique, the resulting composition differ from the content of the initial Mn2O3–CuO components of the flux. Magnetic susceptibility measurements and the calculations of the exchange integrals in frameworks of indirect coupling model revealed that monoclinic distortions strongly affect exchange interactions and appearance of magnetic ordering phase at the temperature T=93 K. The hypothesis of the existence of several magnetic subsystems was supposed. © 2016 Elsevier B.V.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Deich L. I.
Заглавие : Local piezoelectric effect in disordered dielectrics
Разночтения заглавия :авие SCOPUS: Local piezoelectric effect in disordered dielectrics
Место публикации : J. Phys.: Condens. Matter: IOP PUBLISHING LTD, 1990. - Vol. 2, Is. 8. - P.2045-2052. - ISSN 0953-8984, DOI 10.1088/0953-8984/2/8/011
Примечания : Cited References: 13
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Vasilovskiy S. G., Beskrovnyi A. I., Aleksandrov K. S., Flerov I. N., Simkin V. G.
Заглавие : Features of structural transformations in dielectrics Rb2KM3+F6, M3+ = Al, Cr, Ga, Fe, Lu, Er
Коллективы : International Seminar on Ferroelactic Physics
Место публикации : Abstract book of The Fifth International Seminar on Ferroelactic Physics. - 2006. - P.30
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6.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bondarev V. S., Flerov I. N., Gorev M. V., Pogoreltsev E. I., Molokeev M. S., Mikhaleva E. A., Shabanov A. V., Es'kov A. V.
Заглавие : Influence of thermal conditions on the electrocaloric effect in a multilayer capacitor based on doped BaTiO3
Место публикации : J. Adv. Dielectr. - 2017. - Vol. 7, Is. 6. - Ст.1750041. - ISSN 2010-135X, DOI 10.1142/S2010135X17500412. - ISSN 2010-1368
Примечания : Cited References: 32. - The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research, project no. 16-42-240428 r_a, and partially financially supported by Government of Russian Federation, Grant 074-U01.
Ключевые слова (''Своб.индексиров.''): electrocaloric effect--ferroelectrics--layered structures--nonequilibrium conditions--phase transitions
Аннотация: We present the results of studies of thermal expansion, heat capacity, permittivity, polarization and the influence of different thermal conditions on the intensive electrocaloric effect (ECE), ΔTAD, in a commercial multilayer capacitor based on doped BaTiO3. Investigations in a wide temperature range revealed one anomaly in the behavior of the physical properties at about 290K characteristic for the relaxors. Direct measurements showed a high reversibility of ECE under equilibrium thermal conditions. Good agreement was found between the values of ΔTAD determined by direct and indirect measurements at the electric field up to 15.4 kV/cm. Quasi-isothermal conditions lead, firstly, to decrease of large ΔTAD ≈0.94K obtained in adiabatic conditions under E = 308 kV/cm to 0.87 K, and, secondly, the appearance of a difference between the values of ΔTON and ΔTOFF determined when the electric field is applied and removed. Using this phenomenon and changing the frequency of the periodic electric field, E = 15.4 kV/cm, the effect of cooling was obtained equal to [(ΔTON + ΔT OFF)/2]max = -0,032 K. The results obtained are useful for further development of the electrocaloric refrigeration technique without thermal switches.
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7.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Bezmaternykh L. N., Sofronova S. N., Volkov N. V., Eremin E. V., Bayukov O. A., Nazarenko I. I., Velikanov D. A.
Заглавие : Magnetic properties of Ni3B2O6 and Co3B2O6 single crystals
Место публикации : Phys. Status Solidi B. - 2012. - Vol. 249, Is. 8. - P.1628-1633. - ISSN 0370-1972, DOI 10.1002/pssb.201147518
Примечания : Cited References: 12. - This study was supported by the Siberian Branch of the Russian Academy of Sciences, Integration project no. 101.
Предметные рубрики: DIELECTRICS
Ключевые слова (''Своб.индексиров.''): antiferromagnets--crystal growth--magnetics structure--ni3b2o6 and co3b2o6 single crystals
Аннотация: Orthorhombic Me3B2O6 (Me = Co, Ni) single crystals of the kotoite family are grown from the fluxes based on a mixture of bismuth trimolybdate and sodium oxide upon spontaneous nucleation. The field and temperature dependences of magnetization of the single crystals with the magnetic field oriented along the principal crystallographic directions are obtained. Unlike Ni3B2O6, Co3B2O6 exhibits strong anisotropy of the magnetic properties. At the temperature T = 10 K, the magnetization curves of Co3B2O6 reveal an anomaly attributed to the spin-reorientation transition. Strong anisotropy of the magnetic properties of Co3B2O6 is also confirmed by the calculation of the exchange interactions within a simple indirect coupling model.
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8.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Moshkina E. M., Sofronova S. N., Veligzhanin A., Molokeev M. S., Nazarenko I. I., Eremin E. V., Bezmaternykh L. N.
Заглавие : Magnetism and structure of Ni2MnBO5 ludwigite
Место публикации : J. Magn. Magn. Mater.: Elsevier, 2016. - Vol. 402. - P.69-75. - ISSN 03048853 (ISSN), DOI 10.1016/j.jmmm.2015.11.033
Примечания : Cited References: 23. - The authors are grateful to Professor N.V. Volkov and Professor A.N. Vasiliev for valuable discussions. This work was supported by Russian Foundation for Basic Research (grants No. 16-02-00055, 16-32-00318)
Предметные рубрики: CRYSTAL-STRUCTURE
DIELECTRICS
IFEFFIT
Mn
Ключевые слова (''Своб.индексиров.''): ludwigites--crystal structure--antiferromagnetic--indirect coupling model
Аннотация: Single crystals of ludwigite Ni2MnBO5 were synthesized by flux growth technique. The detailed structural and magnetic characterizations of the synthesized samples have been carried out. The cations composition of the studied crystal was determined using X-ray diffraction and EXAFS technique, the resulting composition is differ from the content of the initial Mn2O3–NiO components of flux. Magnetic susceptibility measurements and the calculations of the exchange integrals in frameworks of indirect coupling model revealed strong antiferromagnetic interactions and appearance of magnetic ordering phase at the temperature T=85 K. The hypothesis of the existence of several magnetic subsystems was supposed.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krylov A. S., Sofronova S. N., Gudim I. A., Krylova S. N., Kumar R., Vtyurin A. N.
Заглавие : Manifestation of magnetoelastic interactions in Raman spectra of HoxNd1-хFe3(BO3)4 crystals
Коллективы : International Workshop on Advanced Dielectric Materials and Their Applications
Место публикации : J. Adv. Dielectr. - 2018. - Vol. 08, Is. 02. - Ст.1850011. - ISSN 2010135X (ISSN), DOI 10.1142/S2010135X1850011X
Примечания : Cited References: 32
Ключевые слова (''Своб.индексиров.''): multiferroic--magnetoelastic interaction--raman spectra--phase transition--magnetic ordering
Аннотация: Raman spectra of Ho1-xNdxFe(BO3)4 (x=1, 0.75, 0.5, 0.25) have been studied in temperature range 10-400K. Two compositions (x=1, x=0.75) demonstrate structural phase transition with soft mode restoration. The addition of Nd atoms increases interatomic spacing and decreases the temperature of structural phase transition. The solid solutions (x=0.75, 0.5, 0.25) demonstrate the emergence of the peaks corresponding to magnetoelastic interaction below Neel temperature. The order parameter of the magnetic phase transition has been determined. The equal concentrations of holmium and neodymium atoms prevent magnon soft modes condensation caused by exchange interactions in Fe-O-Fe chains are observed. Calculations confirm the data obtained in the experiment.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Nazarenko I. I., Sofronova S. N., Moshkina E. M.
Заглавие : Magnetic ordering dependence on iron ions distribution in Cu2FeBO5 ludwigite
Коллективы : Russian Foundation for Basic Research; Government of Krasnoyarsk Territory [16-42-243028]
Место публикации : J. Exp. Theor. Phys. - 2018. - Vol. 126, Is. 5. - P.674-682. - ISSN 1063-7761, DOI 10.1134/S1063776118050047. - ISSN 1090-6509(eISSN)
Примечания : Cited References: 18. - This study was supported by the Russian Foundation for Basic Research and the Government of Krasnoyarsk Territory (project no. 16-42-243028).
Предметные рубрики: DIELECTRICS
CATION
Аннотация: A comparative analysis of the copper and iron ions bonds exchange energies was conducted for various variants of orderings and distributions of iron ions among crystallographic positions in ludwigite Cu2FeBO5. Analysis showed that the exchange bonds of iron ions play a key role in the formation of magnetic order. The magnetic ordering strongly depends on the distribution of iron ions among the positions. In the case when the Fe3+ is in the same position as in Fe3BO5, the most favorable magnetic structure is similar to the magnetic structure of ludwigite Fe3BO5. In other cases, the type of magnetic ordering is different.
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