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Misfit strain-induced changes in the Fe-sublattice of multiferroic Pb(Fe 1/2 Nb 1/2 )O 3 epitaxial nanofilm seen via Raman spectroscopy
Yuzyuk Y.I.1; Raevski I.P.1; Raevskaya S.I.1; Lemee N.4; Karkut M.G.4; Peng W.4; El Marssi M.4; Chen H.2
2017
Source PublicationJournal of Alloys and Compounds
ISSN09258388
Volume695Pages:1821-1825
AbstractMagnetic phase transition temperature of the PbFe Nb O (PFN) nanofilm on the SrTiO substrate was reported to be about 50 K higher than that in the bulk samples. We carried out comparative Raman studies of a 90 nm-thick PFN epitaxial film on SrRuO -buffered (001) SrTiO substrate and the bulk samples of ceramic PFN and a single crystal. It was found out that the bands at ≈250 cm and ≈700 cm in the spectrum of the film, corresponding to Fe[sbnd]O vibrational modes, are shifted by about 20 cm to higher frequencies as compared to the bulk samples. This result is in line with the predictions of the recent first-principles calculations that compressive misfit strain stimulates the disorder in the Fe and Nb distribution in the lattice, leading to an increase of the magnetic phase transition temperature. Such disordering might cause the changes in the Fe-sublattice of PFN seen in the Raman spectrum.
KeywordLead iron niobate Multiferroic Raman spectra Strain engineering Thin film
DOI10.1016/j.jallcom.2016.11.015
URLView the original
Language英語
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Southern Federal University
2.Universidade de Macau
3.Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences
4.Université de Picardie Jules Verne
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Yuzyuk Y.I.,Raevski I.P.,Raevskaya S.I.,et al. Misfit strain-induced changes in the Fe-sublattice of multiferroic Pb(Fe 1/2 Nb 1/2 )O 3 epitaxial nanofilm seen via Raman spectroscopy[J]. Journal of Alloys and Compounds,2017,695:1821-1825.
APA Yuzyuk Y.I..,Raevski I.P..,Raevskaya S.I..,Lemee N..,Karkut M.G..,...&Chen H..(2017).Misfit strain-induced changes in the Fe-sublattice of multiferroic Pb(Fe 1/2 Nb 1/2 )O 3 epitaxial nanofilm seen via Raman spectroscopy.Journal of Alloys and Compounds,695,1821-1825.
MLA Yuzyuk Y.I.,et al."Misfit strain-induced changes in the Fe-sublattice of multiferroic Pb(Fe 1/2 Nb 1/2 )O 3 epitaxial nanofilm seen via Raman spectroscopy".Journal of Alloys and Compounds 695(2017):1821-1825.
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