Ordering of A-cations in lead-free oxides with a filled tetragonal tungsten bronze structure

Abstract By X-ray powder diffraction, the structure of polycrystalline lead-free oxides K 4 Bi 2 Nb l0 O 30 and Na 2 Sr 4 Nb 10 O 30 was refined with an emphasis on ordering in the A-sites of the tetragonal tungsten bronze crystal lattice. It was shown that the studied oxides have different types of...

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Published inJournal of physics. Conference series Vol. 1967; no. 1; pp. 12017 - 12023
Main Authors Bunin, M A, Bunina, O A, Chumachenko, K S
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2021
Subjects
Cations
Crystal lattices
Ferroelectricity
Lead free
Oxides
Phase transitions
Tungsten bronze
X ray powder diffraction
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Summary:Abstract By X-ray powder diffraction, the structure of polycrystalline lead-free oxides K 4 Bi 2 Nb l0 O 30 and Na 2 Sr 4 Nb 10 O 30 was refined with an emphasis on ordering in the A-sites of the tetragonal tungsten bronze crystal lattice. It was shown that the studied oxides have different types of cationic ordering, which does not change at ferroelectric phase transition. The results are consistent with the piezoresponse force microscopy data.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1967/1/012017