Influence of pinning effects on the ferroelectric hysteresis in cerium-doped Sr0.61Ba0.39Nb2O6 -: art. no. 174101

被引：77
作者：
Granzow, T
Dörfler, U
Woike, T
Wöhlecke, M
Pankrath, R
Imlau, M
Kleemann, W
机构：
[1] Univ Cologne, Inst Kristallog, D-50674 Cologne, Germany
[2] Univ Osnabruck, Fachbereich Phys, D-49069 Osnabruck, Germany
[3] Univ Duisburg Gesamthsch, Lab Angew Phys, D-47048 Duisburg, Germany
来源：
PHYSICAL REVIEW B | 2001年 / 63卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.63.174101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The temporal behavior of ferroelectric domains under external electric field is investigated in cerium-doped strontium-barium-niobate crystals using quasistatic surface-charge detection. The polarization reversal depends strongly on frequency. temperature, dark conductivity, and doping concentration. This so-called electrical aging is attributed to electric pinning centers that hinder the domain-wall motion. We discuss the existence of pinning centers on the basis of the quenched random-field model.
引用
收藏
页码：1741011 / 1741017
页数：7
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