Nature of dielectric relaxation in SrTiO3:Mn single crystals
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F23%3A00580182" target="_blank" >RIV/68378271:_____/23:00580182 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1134/S0021364023603111" target="_blank" >https://doi.org/10.1134/S0021364023603111</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1134/S0021364023603111" target="_blank" >10.1134/S0021364023603111</a>
Alternative languages
Result language
angličtina
Original language name
Nature of dielectric relaxation in SrTiO3:Mn single crystals
Original language description
Dielectric spectra of SrTiO3 and SrTiO3:Mn single crystals in the frequency range of 10–3000 cm–1 and in the temperature range of 5–297 K have been studied using time resolved terahertz spectroscopy and Fourier infrared spectroscopy. It has been established that doping with Mn ions reduces the antiferrodistortive phase transition temperature by about 20 K, but hardly affects the character of the temperature dependence of the parameters of a ferroelectric soft mode at temperatures of about 60–297 K. It has been found that an additional excitation with the frequency below the frequency of the ferroelectric soft mode should be taken into account for an appropriate model description of the dispersion of the permittivity of SrTiO3:Mn in the terahertz frequency range. The results obtained in this work indicate that dielectric relaxation in the SrTiO3:Mn crystal is due to thermally activated hops of Mn atoms between displaced (noncentral) crystallographic sites.n
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
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JETP Letters
ISSN
0021-3640
e-ISSN
1090-6487
Volume of the periodical
118
Issue of the periodical within the volume
9
Country of publishing house
RU - RUSSIAN FEDERATION
Number of pages
9
Pages from-to
684-692
UT code for WoS article
001129530800012
EID of the result in the Scopus database
2-s2.0-85180457967