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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Konferencja
IX National Conference on Fast Ion Conductors , Wrocław-Borowice , 9-12 December 2004
Języki publikacji
Abstrakty
X-ray analysis has been performed for RbD2PO4 and CsH2PO4 over the temperature range from 288 K to 537 K and 507 K, respectively. The refinement of the crystal structure of RbD2PO4 at 430 K has revealed that the high-temperature paraelectric phase of this crystal is isomorphic with the monoclinic P21/m paraelectric phase of CsH2PO4. The X-ray diffraction CCD images obtained for RbD2PO4 have proved that the high-temperature paraelectric phase is stable up to approximately 525 K. At this temperature, polycrystallisation of the single-crystal samples and their subsequent decomposition has been observed. CsH2PO4 undergoes a structural phase transition at 504 K, from the monoclinic paraelectric phase to a cubic superionic phase (P21/m transforms to Pm-3m symmetry). The reversibility of the superionic phase transition in the crystals is a strong evidence for a polymorphic character of this solid-solid transition.
Wydawca
Czasopismo
Rocznik
Tom
Strony
229--236
Opis fizyczny
Bibliogr. 22 poz.
Twórcy
autor
- Institute of Physics, Wroclaw University of Technology, Wybrzeże Wyspiańskiego 27, Wrocław, wieslawa.bronowska@pwr.wroc.pl
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW1-0021-0102