Fundamental limitation to the magnitude of piezoelectric response of ⟨001⟩pc textured K0.5Na0.5NbO3 ceramic
Fundamental limitation to the magnitude of piezoelectric response of ⟨001⟩pc textured K0.5Na0.5NbO3 ceramic
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DOI：
10.1063/1.4874648
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发表时间：
2014-05
影响因子：
4
通讯作者：
Shashaank Gupta;A. Belianinov;M. Okatan;S. Jesse;Sergei V. Kalinin;S. Priya
中科院分区：
文献类型：
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作者：
Shashaank Gupta;A. Belianinov;M. Okatan;S. Jesse;Sergei V. Kalinin;S. Priya
K0.5Na0.5NbO3（KNN）织构陶瓷的纵向压电响应比无规织构陶瓷提高了65%。压电响应力显微镜研究表明，与随机陶瓷相比，织构陶瓷存在较大的180°和非180°畴。通过KNN的晶体学性质和畴形态讨论了由KNN 001织构的发展改善压电响应。与菱形组合物进行的比较分析表明，改善纵向压电响应的多晶陶瓷的发展的10001 Alzhepc织构是由晶体结构。
⟨001⟩pc textured K0.5Na0.5NbO3 (KNN) ceramic was found to exhibit a 65% improvement in the longitudinal piezoelectric response as compared to its random counterpart. Piezoresponse force microscopy study revealed the existence of larger 180° and non-180° domains for textured ceramic as compared to the random ceramic. Improvement in piezoresponse by the development of ⟨001⟩pc texture is discussed in terms of the crystallographic nature of KNN and domain morphology. A comparative analysis performed with a rhombohedral composition suggested that the improvement in longitudinal piezoresponse of polycrystalline ceramics by the development of ⟨001⟩pc texture is determined by the crystal structure.