Electrical conductivity in oxygen-substituted SrTiO3-δ films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00547877" target="_blank" >RIV/68378271:_____/21:00547877 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1063/5.0072225" target="_blank" >https://doi.org/10.1063/5.0072225</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0072225" target="_blank" >10.1063/5.0072225</a>
Alternative languages
Result language
angličtina
Original language name
Electrical conductivity in oxygen-substituted SrTiO3-δ films
Original language description
Enhancement of electrical conductivity in fundamentally insulating ABO3 perovskite oxide ferroelectrics is crucial for innovative applications in resistive switching, photovoltaics, and catalysis. One of the methods to raise conductivity in bulk crystals or ceramics relies on the possibility to remove and/or substitute oxygen atoms. Here, we explored this approach for thin films of the representative perovskite oxide SrTiO3. Small-signal AC conductivity was investigated in epitaxial and polycrystalline films, where oxygen vacancies (VO), nitrogen (N), or hydrogen (H) were introduced in situ during filmgrowth. Hoppingmechanismof conductivity was evidenced by the observed strong growth of AC conductivity with temperature, frequency, and AC voltage in all films. Small polarons were identified as charge carriers. Oxygen vacancies/substitutions were suggested to facilitate hopping probability by generating sites for carrier localization.
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
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
Applied Physics Letters
ISSN
0003-6951
e-ISSN
1077-3118
Volume of the periodical
119
Issue of the periodical within the volume
Nov.
Country of publishing house
US - UNITED STATES
Number of pages
5
Pages from-to
192901
UT code for WoS article
000721489800006
EID of the result in the Scopus database
2-s2.0-85119037892