Small-polaron conductivity in perovskite ferroelectric BaTiO3 films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00566635" target="_blank" >RIV/68378271:_____/22:00566635 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0129831" target="_blank" >https://doi.org/10.1063/5.0129831</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0129831" target="_blank" >10.1063/5.0129831</a>
Alternative languages
Result language
angličtina
Original language name
Small-polaron conductivity in perovskite ferroelectric BaTiO3 films
Original language description
Small-polaron hopping conductivity was evidenced and examined in various pulsed-laser-deposited films of ferroelectric BaTiO3 and reference films of SrTiO3. For this, AC conductivity was studied in a broad range of temperatures and frequencies for films sandwiched between the bottom and top electrodes. In the BaTiO3 films, with increasing temperature, a significant increase in activation energy for small-polaron hopping was found and ascribed to strong electron–phonon coupling and complex lattice oscillations therein. Plain relations of the activation energy to microstructure, composition, or phase transitions were lacking, which corroborated the critical role of phonons. Additionally, a phonon-less transport was detected. It was anticipated that owing to strong electron–phonon coupling, rich phonon ensembles, and coexistence of phonon-stimulated and phonon-less processes, the small-polaron conductivity can heavily vary in ferroelectric films that necessitates further studies.
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
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Physics Letters
ISSN
0003-6951
e-ISSN
1077-3118
Volume of the periodical
121
Issue of the periodical within the volume
20
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
202901
UT code for WoS article
000886646400003
EID of the result in the Scopus database
2-s2.0-85143979996