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  Structure and piezoelectric properties of Sm-doped BiFeO3 ceramics near the morphotropic phase boundary

Karpinsky, D., Troyanchuk, I., Trukhanov, A., Willinger, M. G., Khomchenko, V., Kholkin, A., et al. (2019). Structure and piezoelectric properties of Sm-doped BiFeO3 ceramics near the morphotropic phase boundary. Materials Research Bulletin, 112, 420-425. doi:10.1016/j.materresbull.2018.08.002.

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 Creators:
Karpinsky, D.V.1, 2, Author
Troyanchuk, I.O.1, Author
Trukhanov, A.V.1, Author
Willinger, Marc Georg3, Author              
Khomchenko, V.A.4, Author
Kholkin, A.L.5, Author
Sikolenko, V.6, Author
Maniecki, T.7, Author
Maniukiewicz, W.7, Author
Dubkov, S.V.2, Author
Silibin, M.V.2, Author
Affiliations:
1Scientific-Practical Materials Research Centre of NAS of Belarus, 220072 Minsk, Belarus, ou_persistent22              
2National Research University of Electronic Technology “MIET”, 124498 Zelenograd, Moscow, Russia, ou_persistent22              
3Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
4CFisUC, Department of Physics, University of Coimbra, P-3004-516 Coimbra, Portugal, ou_persistent22              
5Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal, ou_persistent22              
6Joint Institute for Nuclear Research, 141980 Dubna, Russia, ou_persistent22              
7Institute of General and Ecological Chemistry, Lodz University of Technology, 90-924 Lodz, Poland, ou_persistent22              

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 Abstract: The evolution of crystal structure and piezoelectric properties of the Bi1-xSmxFeO3 ceramics with compositions corresponding to the phase boundary region between the polar rhombohedral and anti-polar orthorhombic phases have been studied. The materials have been investigated using X-ray diffraction, transmission electron microscopy and piezoresponse force microscopy techniques. The diffraction measurements have allowed studying the crystal structure transformations depending on the dopant concentration and temperature. Similar to the compounds with x > 0.18, the lightly-doped samples have been found to adopt the non-polar orthorhombic structure at elevated temperatures. The research has clarified the correlation between the structural state and piezoelectric behavior. Substantial increase in piezoresponse observed for the phase-separated compounds having a dominant fraction of the rhombohedral phase has been discussed assuming significant extrinsic contribution associated with a metastable structural state changing under external electric field.

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Language(s): eng - English
 Dates: 2018-06-082017-07-312018-08-012018-08-022019-04
 Publication Status: Published in print
 Pages: 6
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Materials Research Bulletin
Source Genre: Journal
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Publ. Info: Oxford : Pergamon
Pages: 6 Volume / Issue: 112 Sequence Number: - Start / End Page: 420 - 425 Identifier: ISSN: 0025-5408
CoNE: https://pure.mpg.de/cone/journals/resource/954926251623