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Title: | Morphotropic phase boundary in Sm-substituted BiFeO3 ceramics: Local vs microscopic approaches |
Authors: | Pakalniškis, A. Skaudžius, R. Zhaludkevich, D. V. Zhaludkevich, A. L. Alikin, D. O. Abramov, A. S. Murauskas, T. Shur, V. Y. Dronov, A. A. Silibin, M. V. Selskis, A. Ramanauskas, R. Lukowiak, A. Strek, W. Karpinsky, D. V. Kareiva, A. Шур, В. Я. |
Issue Date: | 2021 |
Publisher: | Elsevier Ltd |
Citation: | Morphotropic phase boundary in Sm-substituted BiFeO3 ceramics: Local vs microscopic approaches / A. Pakalniškis, R. Skaudžius, D. V. Zhaludkevich, et al. — DOI 10.1016/j.jallcom.2021.159994 // Journal of Alloys and Compounds. — 2021. — Vol. 875. — 159994. |
Abstract: | Samarium substituted bismuth ferrite (BiFeO3) ceramics prepared by sol-gel synthesis method were studied using both local scale and microscopic measurement techniques in order to clarify an evolution of the crystal structure of the compounds across the morphotropic phase boundary region. X-ray diffraction analysis, transmission and scanning electron microscopies, XPS, EDS/EDX experiments and piezoresponse force microscopy were used to study the structural transitions from the polar active rhombohedral phase to the anti-polar orthorhombic phase and then to the non-polar orthorhombic phase, observed in the Bi1−xSmxFeO3 compounds within the concentration range of 0.08 ≤ x ≤ 0.2. The results obtained by microscopic techniques testify that the compounds in the range of 0.12 ≤ x ≤ 0.15 are characterized by two phase structural state formed by a coexistence of the rhombohedral and the anti-polar orthorhombic phases; two phase structural state observed in the compounds with 0.15<x<0.18 is associated with a coexistence of the anti-polar orthorhombic and the non-polar orthorhombic phases. Local scale measurements have revealed a notable difference in the concentration range ascribed to the morphotropic phase boundary estimated by microscopic measurements, the obtained results testify a wider concentration range ascribed to a coexistence of different structural phases, the background of the mentioned difference is discussed. © 2021 Elsevier B.V. |
Keywords: | MORPHOTROPIC PHASE BOUNDARY SOL-GEL PROCESSING XRD, TEM, SEM, PFM BISMUTH COMPOUNDS CERAMIC MATERIALS CRYSTAL STRUCTURE IRON COMPOUNDS SAMARIUM COMPOUNDS SCANNING PROBE MICROSCOPY SOL-GEL PROCESS X RAY POWDER DIFFRACTION CONCENTRATION RANGES LOCAL SCALE MICROSCOPIC MEASUREMENT MORPHOTROPIC PHASE BOUNDARIES NON-POLAR ORTHORHOMBIC PHASIS SOL-GEL PROCESSING STRUCTURAL STATE TWO PHASE XRD, TEM, SEM, PFM SCANNING ELECTRON MICROSCOPY |
URI: | http://elar.urfu.ru/handle/10995/102935 |
Access: | info:eu-repo/semantics/openAccess |
RSCI ID: | 46096881 |
SCOPUS ID: | 85105088757 |
WOS ID: | 000657524700004 |
PURE ID: | 21860723 2540f6da-f859-41e8-93bb-4597d2aa5304 |
ISSN: | 9258388 |
DOI: | 10.1016/j.jallcom.2021.159994 |
metadata.dc.description.sponsorship: | This work was supported by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 778070 . M.V.S acknowledges Ministry of Science and Higher Education of the Russian Federation within the framework of state support for the creation and development of World-Class Research Centers “Digital biodesign and personalized healthcare” №075-15-2020-926 . Diffraction measurements and analysis (A.A.D. and D.V.K.) were supported by RFBR (projects # 20-58-00030 ) and BRFFR (project # F20R-123 ). Piezoresponse force microscopy investigations were made possible by the Russian Science Foundation (grant 19-72-10076 ). The equipment of the Ural Center for Shared Use “Modern nanotechnology” UrFU was used. |
RSCF project card: | 19-72-10076 |
CORDIS project card: | 778070 |
Appears in Collections: | Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC |
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