Disorder in strontium barium niobate: local structure, phonons, and polarization dynamics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00553379" target="_blank" >RIV/68378271:_____/21:00553379 - isvavai.cz</a>
Result on the web
<a href="https://ieeexplore.ieee.org/document/9052730" target="_blank" >https://ieeexplore.ieee.org/document/9052730</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/TUFFC.2020.2984829" target="_blank" >10.1109/TUFFC.2020.2984829</a>
Alternative languages
Result language
angličtina
Original language name
Disorder in strontium barium niobate: local structure, phonons, and polarization dynamics
Original language description
Strontium barium niobate, has been recently studied by the scattering and spectroscopic techniques [diffuse scattering (DS), Raman, infrared, and high-frequency dielectric spectroscopies] to decipher the nature of its ferroelectric-relaxor transformation tuned by composition. DS revealed that mesoscopic range ordered correlations along the polar axis are presented in the crystal, being less organized in the relaxor compositions with higher Sr content. For these compositions, transverse polar correlations are found to be anisotropic. Pair distribution function experiments and first-principle calculations in several compositions showed a concomitant new peak around 6.5 Å, which develops on cooling and cannot be explained by the current structural models with long-range incommensurate oxygen tilts but with a short-range ordered tilt arrangement. This relates with two independent polarization networks showing disparate dynamics, temperature behavior, and correlation lengths.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
ISSN
0885-3010
e-ISSN
1525-8955
Volume of the periodical
68
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
314-324
UT code for WoS article
000613348000012
EID of the result in the Scopus database
2-s2.0-85100400826