Low-temperature NIR-VUV optical constants of (001) LaAlO3 crystal
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F22%3A00560878" target="_blank" >RIV/68378271:_____/22:00560878 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/22:00361849
Result on the web
<a href="https://hdl.handle.net/11104/0333658" target="_blank" >https://hdl.handle.net/11104/0333658</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OME.461098" target="_blank" >10.1364/OME.461098</a>
Alternative languages
Result language
angličtina
Original language name
Low-temperature NIR-VUV optical constants of (001) LaAlO3 crystal
Original language description
The optical constants and dielectric function of (001) LaAlO3 crystal were investigated at low temperatures down to 10 K in the NIR-VUV spectral range (photon energies 0.8-8.8 eV). Reflection variable angle spectroscopic ellipsometry and transmission spectroscopy were applied. Interband transitions were examined using the Tauc plots and the critical-point analysis. At room temperature, the indirect bandgap of 5.6 ± 0.01 eV and the lowest-energy direct transition at 7.2 ± 0.03 eV were detected. On cooling to 10 K, a blueshift of ∼0.2 eV and ∼0.1 eV was observed for the indirect and direct transitions, respectively. In the transparency spectral range, the index of refraction was found to be nearly temperature-independent and vary with photon energy from 2.0 (1 eV) to 2.5 (5.5 eV). It was suggested that the excellent thermal stability of the index of refraction may be related to the revealed thermally stable interband transitions.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
<a href="/en/project/EF16_019%2F0000760" target="_blank" >EF16_019/0000760: Solid State Physics for 21st century</a><br>
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
Optical Materials Express
ISSN
2159-3930
e-ISSN
—
Volume of the periodical
12
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
3081-3089
UT code for WoS article
000899595700002
EID of the result in the Scopus database
2-s2.0-85135395755