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Title: Invariant lattice strain and polarization in BaTiO3-CaTiO3 ferroelectric alloys
Authors: Fu, Desheng
Itoh, Mitsuru
Koshihara, Shin-ya
Journal Title: Journal of physics. Condensed matter
Publisher: IOP science
Journal Volume: 22
Journal Issue: 5
Start Page: 052204
Issue Date: 2010-02-10
Rights: © 2010 IOP Publishing Ltd Printed in the UK
NDC: 428
Abstract: We report the lattice strain and polarization of the BaTiO(3)-CaTiO(3) solid solution. We found that the lattice strain evaluated by the tetragonality of the tetragonal phase at room temperature is nearly independent of the composition within the limit of the solid solution. In association with this variation, the saturation polarization remains nearly unchanged. Such invariant lattice strain associated with the ionic displacement in ferroelectrics is considered to be responsible for the nearly compositional independence of the polarization and the observed ferroelectric Curie temperature. Its relatively stable polarization compared with that of pure BaTiO(3) is very interesting for technological applications, such as in ferroelectric memory.
ISSN: 09538984 OPAC
E-ISSN: 1361648X OPAC
Publisher's DOI: 10.1088/0953-8984/22/5/052204   
PMID: 21386335
Journal NCID: AA10672168 OPAC ciniib
Textversion: author
Appears in Collections:30. 雑誌論文・記事(Journal Article, Article, Preprint)

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Others By: Fu, Desheng (符, 徳勝) (フ, トクショウ) -- Itoh, Mitsuru -- Koshihara, Shin-ya

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