Regular nanodomain vertex arrays in BiFeO3 single crystals

被引：12
作者：
Berger, A. [1 ]
Hesse, D. [1 ]
Haehnel, A. [1 ]
Arredondo, M. [1 ]
Alexe, M. [1 ]
机构：
[1] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany
来源：
PHYSICAL REVIEW B | 2012年 / 85卷 / 06期
关键词：
DOMAIN-STRUCTURE; DYNAMICS; GROWTH; WALLS; FILMS;
D O I：
10.1103/PhysRevB.85.064104
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Domain patterns consisting of triangular nanodomains of less than 50 nm size, arranged into long regular vertex arrays separated by stripe domains, were observed by (scanning and high-resolution) transmission electron microscopy and piezoresponse force microscopy in BiFeO3 single crystals grown from solution flux. Piezoresponse force microscopy analysis together with crystallographic analysis by selected area and nanobeam electron diffraction indicate that these patterns consist of ferroelectric 109 degrees domains. A possibility for conserving Kittel's law is discussed in terms of the patterns being confined to the skin layer observed recently on BiFeO3 single crystals.
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页数：7
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