An optical and dielectric spectroscopy study of Er3+-doped KTaO3.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00368463" target="_blank" >RIV/68378271:_____/11:00368463 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1002/pssb.201147080" target="_blank" >http://dx.doi.org/10.1002/pssb.201147080</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/pssb.201147080" target="_blank" >10.1002/pssb.201147080</a>
Alternative languages
Result language
angličtina
Original language name
An optical and dielectric spectroscopy study of Er3+-doped KTaO3.
Original language description
We report the results of a multifaceted study of optical and dielectric properties of erbium-doped potassium tantalate crystals. Studies of optical absorption and photoluminescence allowed us to determine the system of energy levels that control the maininternal optical transitions in the 4f electronic shell of Er3+ in KTaO3. It was found that at least two types of Er-centres,major and minor ones, are present. The major centres are noncubic,formed by Er3+ substituting for K+ sites; these are responsible for the n-type conductivity of crystals. Wideband optical absorption with a maximum at 1.13 eV was attributed to polaron formation.Far-IR reflectivity studies revealed an increase in the frequency of the lowest transverse optical mode and a decrease inthe dielectric permittivity in comparison with undoped crystals. This stiffening means the suppression of the ferroelectric instability in the system.
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
10306 - Optics (including laser optics and quantum optics)
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)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physica Status Solidi B-Basic Solid State Physics
ISSN
0370-1972
e-ISSN
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Volume of the periodical
248
Issue of the periodical within the volume
12
Country of publishing house
DE - GERMANY
Number of pages
8
Pages from-to
2908-2915
UT code for WoS article
000298263400023
EID of the result in the Scopus database
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