Local structure studies of SrTi16O3 and SrTi18O3./sub

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F14%3A00441459" target="_blank" >RIV/68378271:_____/14:00441459 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1088/0031-8949/89/04/044002" target="_blank" >http://dx.doi.org/10.1088/0031-8949/89/04/044002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0031-8949/89/04/044002" target="_blank" >10.1088/0031-8949/89/04/044002</a>

Result language

angličtina

Original language name

Local structure studies of SrTi16O3 and SrTi18O3./sub

Original language description

In this work we report on the local structure of Ti in (SrTiO3)-O-16 (STO16) and (SrTiO3)-O-18 (STO18) investigated in the low temperature range (6-300 K) by extended x-ray absorption fine structure and x-ray absorption near edge structure (XANES) spectroscopy at Ti K-edge and by optical second harmonic generation (SHG). By comparing XANES of STO16 and STO18 we have identified the isotopic effect which produces at T < 100K a noticeable difference in the measured mean square relative displacements (MSRD)of Ti-O-1 bonds: while STO16 follow the expected Einstein-like behavior, for STO18 we have measured an increase of MSRD values with decreasing temperature. This is an indication of an increasing off-center position of the Ti atoms in the TiO6 octahedra.

Czech name

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Czech description

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Type

J_imp - 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.)

Project

<a href="/en/project/GAP108%2F12%2F1941" target="_blank" >GAP108/12/1941: Advanced preparation methods and experimental research of doped perovskite thin-film systems for high density energy storages</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physica Scripta

ISSN

0031-8949

e-ISSN

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Volume of the periodical

89

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

5

Pages from-to

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UT code for WoS article

000333449400003

EID of the result in the Scopus database

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