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Title: Ferroelectric domain structures in <001>-oriented K0.15Na0.85NbO3 lead-free single crystal
Authors: Chen, Y
Wong, CM
Deng, H
Yau, HM
Wang, D
Yan, Z
Luo, H
Chan, HLW 
Dai, J 
Issue Date: 2015
Publisher: American Institute of Physics Inc.
Source: AIP advances, 2015, v. 5, no. 3, 37117 How to cite?
Journal: AIP Advances 
Abstract: In this work, ferroelectric domain structures of &lt;001 &gt;-oriented K0.15Na0.85NbO3 single crystal are characterized. Transmission electron microscopy (TEM) observation revealed high-density of laminate domain structures in the crystal and the lattices of the neighboring domains are found to be twisted in a small angle. Superlattice diffraction spots of 1/2 {eeo } and 1/2 {ooe} in electron diffraction patterns are observed in the crystal, revealing the a+a+c- tilting of oxygen octahedral in the perovskite structure. The piezoresponse of domains and in-situ poling responses of K0.15Na0.85NbO3 crystal are observed by piezoresponse force microscopy (PFM), and the results assure its good ferroelectric properties.
ISSN: 2158-3226
DOI: 10.1063/1.4914936
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