Počet záznamů: 1
Modelling of cation displacements in SrTiO.sub.3./sub. by means of multi-energy anomalous X-ray diffuse scattering
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SYSNO ASEP 0463041 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Modelling of cation displacements in SrTiO3 by means of multi-energy anomalous X-ray diffuse scattering Tvůrce(i) Kopecký, Miloš (FZU-D) RID, ORCID
Fábry, Jan (FZU-D) RID, ORCID, SAI
Kub, Jiří (FZU-D) RID, ORCIDZdroj.dok. Journal of Applied Crystallography. - : Wiley - ISSN 0021-8898
Roč. 49, Jun (2016), 1016-1020Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova X-ray diffuse scattering ; atomic displacements ; anomalous X-ray scattering ; SrTiO3 Vědní obor RIV BM - Fyzika pevných látek a magnetismus CEP GA15-04121S GA ČR - Grantová agentura ČR Institucionální podpora FZU-D - RVO:68378271 UT WOS 000377020600032 EID SCOPUS 84973394933 DOI 10.1107/S1600576716007147 Anotace X-ray diffuse scattering of SrTiO3 has been measured at two photon energies, the first just below the absorption edge and the second far from the K absorption edge of strontium, in order to vary the atomic scattering factor of the strontium cations. It is shown that two different models of cation displacement comply with the single-energy diffuse scattering patterns, because single-energy diffuse
scattering provides only ambiguous information on the directions of displacement of the Sr2+ and Ti4+ cations. However, the application of multi-energy anomalous diffuse scattering determines unambiguously that the Sr2+ cations are moved from their ideal positions in the [100] direction and the Ti4+ cations are shifted in {111} directions.Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2017
Počet záznamů: 1