Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1506960 | Solid State Sciences | 2007 | 5 Pages |
Abstract
Relaxor and ferroelectric properties have been reported in a lot of compounds and solid solutions. There are usually several ways to tune the behaviour from relaxor to ferroelectric and vice versa: the chemical composition, the temperature and an applied electric field. We show here that the crystalline orientation is an additional tuning parameter. In the tetragonal tungsten bronze crystal Sr0.75Ba0.25Nb2O6, we have evidenced a ferroelectric transition in the [100] direction while a relaxor state is found along the [001] direction. Moreover, these two different behaviours occur in the same temperature range.
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Annie Simon, Gi-Tae Joo, Mario Maglione, Jean Ravez,