The delta-phase of SrTeO3 at 780 K
2008 (English)In: Acta Crystallographica Section E: Structure Reports Online, ISSN 1600-5368, Vol. 64, I52-U75 p.Article in journal (Refereed) Published
As part of a structural investigation of strontium tellurate(IV) (STO), SrTeO3, with particular emphasis on the crystal chemistry and phase transitions, the structure of the delta-phase has been determined at 780 K using a single-crystal analysis. Both structural and non-linear optical measurements indicate that STO undergoes a gamma -> ;delta second-order ferroelectric phase transition at 633 K from the C2 (gamma) to the C2/m (delta) modification. Systematic differences between the similar gamma- and delta-phase structures were determined and it was found that this phase transformation can be described by a displacive mechanism.
Place, publisher, year, edition, pages
2008. Vol. 64, I52-U75 p.
IdentifiersURN: urn:nbn:se:uu:diva-109180DOI: 10.1107/S1600536808020151ISI: 000258064300007OAI: oai:DiVA.org:uu-109180DiVA: diva2:249245