期刊
JOURNAL OF APPLIED PHYSICS
卷 116, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4902858
关键词
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资金
- Norwegian Research Council [197497/F20]
Grain texturing is a known method of exploiting the intrinsic dielectric and piezoelectric anisotropy in ferroelectric ceramics. However, the role of crystallographic texture on anisotropic extrinsic contributions including domain wall motion is not yet understood. Here, we investigate the dielectric and piezoelectric properties and small signal dielectric nonlinearities in K0.5Na0.5NbO3 ceramics in different directions of textured specimens and compare to ceramics without crystallographic texture. We demonstrate that directions in which pseudo-cubic < 100 > poles have greatest orientation density exhibit both an enhanced longitudinal piezoelectric response and lower dielectric nonlinearity. (C) 2014 AIP Publishing LLC.
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