Local dynamics and phase transition in quantum paraelectric SrTiO3 studied by Ti K-edge x-ray absorption spectroscopy

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00486080" target="_blank" >RIV/68378271:_____/16:00486080 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/1742-6596/712/1/012101" target="_blank" >http://dx.doi.org/10.1088/1742-6596/712/1/012101</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1742-6596/712/1/012101" target="_blank" >10.1088/1742-6596/712/1/012101</a>

Result language
angličtina
Original language name
Local dynamics and phase transition in quantum paraelectric SrTiO3 studied by Ti K-edge x-ray absorption spectroscopy
Original language description
Strontium titanate is a model quantum paraelectric in which, in the region of dominating quantum statistics, the ferroelectric instability is inhibited due to nearly complete compensation of the harmonic contribution into ferroelectric soft mode frequency by the zero-point motion contribution. The enhancement of atomic masses by the substitution of O-16 with O-18 decreases the zero-point atomic motion, and low-T ferroelectricity in (SrTiO3)-O-18 is realized. In this study we report on the local structure of Ti in (SrTiO3)-O-16 and (SrTiO3)-O-18 investigated by Extended X-ray Absorption Fine Structure measurements in the temperature range 6 300 K.
Czech name
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Czech description
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Type
D - Article in proceedings
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)

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)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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