Large bulk polarization and regular domain structure in ceramic BiFeO3

被引：228
作者：
Shvartsman, V. V. [1 ]
Kleemann, W.
Haumont, R.
Kreisel, J.
机构：
[1] Univ Duisburg Essen, D-47048 Duisburg, Germany
[2] Univ Paris Sud, CNRS, Lab Physicochim Etat Solide, F-91405 Orsay, France
[3] INPG Minatec, CNRS, Lab Mat & Genie Phys, F-38016 Grenoble, France
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 17期
关键词：
D O I：
10.1063/1.2731312
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Regularly twinned domain structures are observed by scanning piezoforce microscopy on single crystalline grains of BiFeO3 ceramics being grown by a special low temperature sintering process. The domains are considerably larger than those observed in thin films. Their spontaneous polarization comes close to that predicted theoretically and overcomes restrictions hitherto being set to bulk single crystals. The observed ferroelastic twin domain structure resembles that of classic T domains in rhombohedrally distorted NiO, but is additionally superimposed by ferroelectric twin domain patterns. (c) 2007 American Institute of Physics.
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