Dynamics of mesoscopic polarization in the uniaxial tetragonal tungsten bronze (SrxBai1-x)Nb2O6
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F19%3A00517757" target="_blank" >RIV/68378271:_____/19:00517757 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/physrevb.100.184113" target="_blank" >https://doi.org/10.1103/physrevb.100.184113</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.100.184113" target="_blank" >10.1103/PhysRevB.100.184113</a>
Alternative languages
Result language
angličtina
Original language name
Dynamics of mesoscopic polarization in the uniaxial tetragonal tungsten bronze (SrxBai1-x)Nb2O6
Original language description
The high-frequency dielectric behaviour of uniaxial tungsten-bronze strontium barium niobate crystals with various Sr/Ba ratios, including both ferroelectric and relaxor compositions, have been studied in a broad frequency range (10^4 to 10^13 Hz) and temperature interval 100–500 K in order to thoroughly understand the evolution of the relaxation dynamics across the ferroelectric phase transition. The dielectric response along the polar axis consists of three relaxations corresponding to polarization mechanisms related to several correlation lengths of mesoscopic order. All of them show dissimilar behaviors with temperature, pointing out to their distinct nature. A temperature dependent central mode at THz frequencies and a relaxation above 10 GHz are accompanied by the slowing down of a relaxation in the MHz range. This response reveals the complex mechanism of the phase transition and supports the coexistence of displacive and order-disorder scenarios.n
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review B
ISSN
2469-9950
e-ISSN
—
Volume of the periodical
100
Issue of the periodical within the volume
18
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
1-11
UT code for WoS article
000498849400001
EID of the result in the Scopus database
2-s2.0-85076364064