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- Title
Structural changes of relaxor ferroelectric Sr<sub>0.52</sub>Ba<sub>0.48</sub>Nb<sub>2</sub>O<sub>6</sub> (SBN52) on quenching and reheating.
- Authors
Graetsch, Heribert A.
- Abstract
Quenching of Sr0.52Ba0.48Nb2O6 (SBN52) from temperatures above 700°C causes small modifications in the strontium distribution over the large cation sites (Me1 and Me2), changed off-centre shifts of the Nb atoms and slightly increased modulation amplitudes. The higher disorder of cation incorporation can explain the enhanced ferroelectric properties. The quenched structural disorder can be healed by reheating followed by slow cooling. A change of the modulation dimension on quenching such as for Ca xBa1− xNb2O6 (CBN) mixed crystals was not observed.
- Subjects
FERROELECTRIC materials; METAL quenching
- Publication
Acta Crystallographica Section B: Structural Science, Crystal Engineering & Materials, 2017, Vol 73, Issue 5, p820
- ISSN
2052-5192
- Publication type
Article
- DOI
10.1107/S2052520617007880