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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Vtyurin A. N., Gerasimova J. V., Afanasiev E. P., Krylov A. S.
Заглавие : Raman Scattering Study of Carbon Impact Structures from Popigai Astrobleme
Коллективы : Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина, "Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials", International conference (2014 ; 14-17 July; Ekaterinburg, Russa)
Место публикации : International conference «Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials» (PFM-2014): Abstract book. - 2014. - Ст.I-05. - P.28
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krylov A. S., Adamczyk M., Kozielski L., Oreshonkov A. S., Shabanov A. V., Pugachev A., Krylova S. N.
Заглавие : Temperature Structural Changes in Relaxor Ferroelectric BBN Ceramics
Коллективы : Уральский Федеральный университет им. Первого Президента России Б.Н. Ельцина, "Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials", International conference (2014 ; 14-17 July; Ekaterinburg, Russa)
Место публикации : International conference «Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials» (PFM-2014). - 2014. - Ст.P-39. - P.126
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Raevski I. P., Molokeev M. S., Misyul S. V., Eremin E. V., Blazhevich A. V., Kubrin S. P., Sarychev D. A., Titov V. V., Chen H., Chou, C. -C., Raevskaya S. I., Malitskaya M. A.
Заглавие : Studies of ferroelectric and magnetic phase transitions in multiferroic PbFe0.5Ta0.5O3
Коллективы : International Conference of Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials , Russian Foundation for Basic Research (RFBR) [12-08-00887_a, 14-02-90438_Ucr_a], Ministry of education and science of Russian Federation [2132, 2014/174], Southern Federal University [213.01-2014/012-VG], Research Committee of the University of Macau under Research & Development Grant for Chair Professor
Место публикации : Ferroelectrics: Taylor & Francis, 2015. - Vol. 475, Is. 1: Special Issue: Proceedings of International Conference of Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (PFM-2014) Part I of III. - P.52-60. - ISSN 0015, DOI 10.1080/00150193.2015.995009. - ISSN 15635112(eISSN)
Примечания : Cited References:26. - This study is partially supported by the Russian Foundation for Basic Research (RFBR) project (projects 12-08-00887_a and 14-02-90438_Ucr_a), Ministry of education and science of Russian Federation (research project 2132, task 2014/174), Southern Federal University grant 213.01-2014/012-VG and Research Committee of the University of Macau under Research & Development Grant for Chair Professor.
Предметные рубрики: NEUTRON POWDER DIFFRACTION
Pb(Fe1/2Ta1/2)O-3
Ключевые слова (''Своб.индексиров.''): lead iron tantalate--multiferroic--ferroelectric--lattice parameters--phase transition
Аннотация: X-ray, magnetic, and Mossbauer studies of a PbFe0.5Ta0.5O3 powder have been carried out. For the first time temperature dependence of the unit cell parameters was obtained. Antiferromagnetic Neel temperature T-N approximate to 180K was determined using the results of Mossbauer studies. In the vicinity of T-N an anomaly in the temperature dependence of the monoclinic angle beta was revealed in PFT. This anomaly seems to be due to the magnetoelectric coupling.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krylova S. N., Krylov A. S., Roginskii E. M.
Заглавие : Structural properties and lattice dynamics of HoFe3(BO3)4, HoGa3(BO3)4crystals: ab initio calculation
Коллективы : IEEE International Symposium on Applications of Ferroelectrics, International Conference on ElectroCeramics, European Meeting on Ferroelectricity, International Workshop on PiezoMEMS, Piezoresponse Force Microscopy Workshop
Место публикации : European Meeting on Ferroelectricity (14 ; 2019 ; 14-19 July ; Lausanne, Switzerland). Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM: Abstract book. - 2019. - P.691
Примечания : Cited References: 4. - This work is financially supported by the Russian Foundation for Basic Research № 18-02-00754
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Vtyurin A. N., Krylov A. S., Krylova S. N., Wei, Xiaoyong, Feng, Yujun, Xu, Ran, Zhao, Tian
Заглавие : Dumping soft modes in Raman spectra of antiferroelectric (Pb-La)(Zr-Sn-Ti)O3 ceramics
Коллективы : IEEE International Symposium on Applications of Ferroelectrics, International Conference on ElectroCeramics, European Meeting on Ferroelectricity, International Workshop on PiezoMEMS, Piezoresponse Force Microscopy Workshop
Место публикации : Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM: Abstract book. - 2019. - P.694
Примечания : Cited References: 3
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krylov A. S., Senkovska I., Bon V., Kaske S., Slysareva E. A., Krylova S. N., Vtyurin A. N.
Заглавие : Switchable phases of metal-organic frameworks DUT-8(Ni): Raman spectroscopy study
Коллективы : IEEE International Symposium on Applications of Ferroelectrics, International Conference on ElectroCeramics, European Meeting on Ferroelectricity, International Workshop on PiezoMEMS, Piezoresponse Force Microscopy Workshop
Место публикации : Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM: Abstract book. - 2019. - P.408
Примечания : Cited References: 3. - I.S.,V.B., S.K. thank the DFG for financial support (FOR 2433); A.K., S.K., A.V. thank the Russian Foundation for Basic Research for financial support (18-02-00754)
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Gerasimova Y. V., Krylov A. S., Vtyurin A. N., Laptash N. M.
Заглавие : Ferroelastic phase transition in the family of crystals of double salts of fluorides according to vibrational spectroscopy data
Коллективы : IEEE International Symposium on Applications of Ferroelectrics, International Conference on ElectroCeramics, European Meeting on Ferroelectricity, International Workshop on PiezoMEMS, Piezoresponse Force Microscopy Workshop
Место публикации : Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM: Abstract book. - 2019. - P.174
Примечания : Cited References: 3. - The study was carried out with the financial support of the Russian Foundation for Basic Research №17-02-00920
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Krylov A. S., Moshkina E. M., Gudim I. A., Krylova S. N., Vtyurin A. N.
Заглавие : Investigation structural and magnetic transitions in multiferroics with huntite structure HоFe3-xGax(BO3)4 and TbFe3-xGax(BO3)4
Коллективы : IEEE International Symposium on Applications of Ferroelectrics, International Conference on ElectroCeramics, European Meeting on Ferroelectricity, International Workshop on PiezoMEMS, Piezoresponse Force Microscopy Workshop
Место публикации : Joint Conference of the IEEE ISAF, EMF, ICE, IWPM and PFM: Abstract book. - 2019. - P.506
Примечания : Cited References: 3. - RFBR funded the reported study according to the research project № 18-02-00754
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Coondoo I., Krylov A. S., Sharma D. K., Krylova S. N., Alikin D., Kumar J. S., Mirzorakhimov A., Melnikova N., Soares M. J., Kholkin A. L.
Заглавие : Temperature dependent structural, dielectric, Raman, piezoresponse and photoluminescence investigations in sol-gel derived BCZT ceramics
Место публикации : Mater. Chem. Phys. - 2022. - Vol. 277. - Ст.125526. - ISSN 02540584 (ISSN), DOI 10.1016/j.matchemphys.2021.125526
Примечания : Cited References: 82. - I.C. and J.S.K would like to acknowledge financial assistance by national funds (OE), through FCT – Fundação para a Ciência e a Tecnologia, I.P., in the scope of the framework contract foreseen in the numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of August 29, changed by Law 57/2017, of July 19. This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020 & UIDP/50011/2020, financed by national funds through the FCT/MCTES. This work was partially developed within the scope of the project i3N, UIDB/50025/2020 & UIDP/50025/2020, financed by national funds through the FCT/MEC. Part of this work (A.K.) was supported by the Ministry of Science and Higher Education of the Russian Federation (grant no. 075-15-2021-588). This research used resources of the Ural Center for Shared Use “Modern nanotechnology”, Ural federal University, Russia and the Krasnoyarsk Regional Center of Research Equipment of Federal Research Center “Krasnoyarsk Science Center SB RAS”. The authors thank Dr. Gonzalo Irurueta, Center for Mechanical Engineering and Automation, University of Aveiro, Portugal and Dr. E. Venkata Ramana, Department of Physics, University of Aveiro, Portugal
Аннотация: 0.5Ba(Ti0.8Zr0.2)O3-0.5(Ba0.7Ca0.3)TiO3 [50BZT-50BCT or BCZT] based compounds have been the focus of a lot of research, particularly motivated by their high piezoelectric effect. However, the literature lacks an elaborate investigation of the phase transition behavior in BCZT ceramics obtained by wet chemistry processing. Here, we present an in-depth study on the temperature dependence of x-ray diffraction (XRD), Raman scattering, dielectric properties, local piezoresponse and photoluminescence (PL) to investigate the sequence of phase transitions in the BCZT ceramic synthesized via a chemical route. Phase formation was determined by Rietveld analysis of XRD data, while compositional homogeneity and elemental quantification of the compound was validated using energy dispersive x-ray spectroscopy (EDX) and x-ray photoelectron spectroscopy (XPS) studies. Detailed fitting of XPS data indicated the existence of Ti3+ species (∼6%) in the prepared BCZT. Phase transitions were examined by analyzing the modifications in the XRD profile of Bragg reflection {200} and anomalies observed in the temperature variation of dielectric and Raman spectra studied over a wide temperature range starting from 10K to beyond Curie temperature. Crystallographic transformation temperatures obtained from dielectric measurement agreed well with those assessed from the temperature evolution of Raman spectra. In addition to other transitions, Raman scattering results revealed the existence of a transition from to phase near −175 °C, a transition that has not been interpreted in BCZT (and generally not observed in parent BaTiO3 compound). The luminescence response was studied by photoluminescence (PL) spectroscopy in the temperature range 15–300 K. The position of the PL peak was observed to shift with temperature and discontinuities in the wavelength shift were noted near phase transitions. Evolution of domain morphology with temperature was examined by piezoresponse force microscopy technique. Consolidated results assign the phase sequence in sol-gel derived BCZT as: R(R3c)→-175±10°CR(R3m)→-50±10°CO→40±10°CT→120±10°CC.
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