Strain-controlled optical absorption in epitaxial 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_____%2F15%3A00449010" target="_blank" >RIV/68378271:_____/15:00449010 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.4921083" target="_blank" >http://dx.doi.org/10.1063/1.4921083</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.4921083" target="_blank" >10.1063/1.4921083</a>
Alternative languages
Result language
angličtina
Original language name
Strain-controlled optical absorption in epitaxial ferroelectric BaTiO3 films
Original language description
A lattice strain of 0.3%-1.3% is achieved in epitaxial tetragonal BaTiO3 films grown on (001)-oriented SrTiO3 single-crystal substrates. Our experimental studies of absorption spectra in the range of 0.74-9.0 eV demonstrate that epitaxy produces significant changes in the optical properties of the films compared with those of a reference polydomain BaTiO3 crystal: the absorption edge and the peak at 5 eV strongly blue-shift by 0.2-0.4 eV, the magnitude of the peak at 5 eV drops, and certain spectral features disappear, whereas the absorption peak at 8.5 eV remains unchanged. The observed behavior is attributed to ferroelectric polarization, which is enhanced by epitaxial strain in the films. Our results indicate that epitaxially induced variations of ferroelectric polarization may be used to tailor the optical properties of thin films for photonic and optoelectronic applications.
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
2015
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
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Volume of the periodical
106
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
4
Pages from-to
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UT code for WoS article
000355008100027
EID of the result in the Scopus database
2-s2.0-84929379829