Open AccessThe surface piezoresponse of tetragonal tungsten bronze oxides with different ordering of cations in A-sublattice
Author(s) -
M. A. Bunin,
О. А. Бунина,
K. S. Chumachenko
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1967/1/012016
Subject(s) - tetragonal crystal system , tungsten , octahedron , bronze , materials science , ceramic , wolframite , crystallography , mineralogy , metallurgy , crystal structure , chemistry
The piezoresponse (PR) images of microsized surface areas of the hot-pressed ceramics samples K 4 Bi 2 Nb 10 O 30 , K 2 Sr 4 Nb w O3 0 , and Na 2 Sr 4 Nb l0 O 30 , presenting different types of the inter-octahedral cations ordering, were obtained. The Fourier analysis of the PR data showed that the mesoscale regions form subsystems responsible for the electrical activity of the sample, the contribution of which manifests itself depending on the type of cation ordering.