Aging of the ferroelectric hysteresis in Ce-doped Strontium-Barium-Niobate observed by holographic phase gratings

被引：0
|
作者：
U. Dörfler
T. Granzow
Th. Woike
M. Wöhlecke
R. Pankrath
M. Imlau
机构：
[1] Universität zu Köln,Institut für Mineralogie und Geochemie
[2] Universität Osnabrück,Fachbereich Physik
来源：
Applied Physics B | 2004年 / 78卷
关键词：
Light Intensity; Hysteresis Loop; Aging Effect; Modulation Depth; Intensity Pattern;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The ferroelectric hysteresis of Strontium-Barium-Niobate single crystals doped with Ce (SBN:Ce) is measured by a holographic method. The hysteresis loop flattens out when measured repeatedly. The size of this aging effect strongly depends on the modulation depth m of the light intensity pattern: for m=1 the aging is less pronounced than for smaller m. This behavior is explained in the context of the model of frozen internal charges for the ferroelectric relaxor SBN.
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页码：211 / 215
页数：4
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