Tunability and reiaxor properties of ferroelectric barium stannate titanate ceramics

S. G. Lu, Z. K. Xu, H. D. Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Scopus citations

Abstract

Barium stannate titanate [Ba(SnxTi1-x)O3, x=0.1, 0.2, 0.3, and 0.4] ceramics were prepared using a conventional solid-state reaction process. Their dielectric properties were measured under direct current bias fields ranging from 0 to 2.5 kV/cm. A transformation from normal to relaxor ferroelectrics was observed when x≥0.3. Broken long-range order or "dirty" ferroelectric domains and nanodomains were observed in Ba(Sn0.1Ti0.9)O3 and Ba(Sn 0.4Ti0.6)O3 by transmission electron microscopy, respectively. Voltage driven tunability was found to decrease with increasing Sn content. The change from normal ferroelectric into relaxor ferroelectric had a negative impact on the tunability value of the materials.

Original languageEnglish
Article number3
Pages (from-to)5319-5321
Number of pages3
JournalApplied Physics Letters
Volume85
Issue number22
DOIs
StatePublished - 29 Nov 2004

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