Complete set of material constants of single domain (K, Na)(Nb, Ta)O3 single crystal and their orientation dependence

Limei Zheng, Shiyang Li, Shijing Sang, Junjun Wang, Xiaoqing Huo, Rui Wang, Zhongyuan Yuan, Wenwu Cao

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

A self-consistent complete set of dielectric, piezoelectric, and elastic constants for single domain Ta modified (K, Na)NbO3 (KNN) crystal was determined. This full set constant for single domain KNN-based crystals allowed the prediction of orientation dependence of the longitudinal dielectric, piezoelectric, elastic coefficients, and electromechanical coupling factors. The maximum piezoelectric and electromechanical properties were found to exist near [001]C. In addition, material constants of [001]C poled domain engineered single crystal with 4mm symmetry were experimentally measured and compared with the calculated values. Based on this, extrinsic contribution to the piezoelectricity was estimated to be ∼20%.

Original languageEnglish (US)
Article number212902
JournalApplied Physics Letters
Volume105
Issue number21
DOIs
StatePublished - Nov 24 2014

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single crystals
piezoelectricity
crystals
elastic properties
permittivity
symmetry
coefficients
predictions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Zheng, Limei ; Li, Shiyang ; Sang, Shijing ; Wang, Junjun ; Huo, Xiaoqing ; Wang, Rui ; Yuan, Zhongyuan ; Cao, Wenwu. / Complete set of material constants of single domain (K, Na)(Nb, Ta)O3 single crystal and their orientation dependence. In: Applied Physics Letters. 2014 ; Vol. 105, No. 21.
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Complete set of material constants of single domain (K, Na)(Nb, Ta)O3 single crystal and their orientation dependence. / Zheng, Limei; Li, Shiyang; Sang, Shijing; Wang, Junjun; Huo, Xiaoqing; Wang, Rui; Yuan, Zhongyuan; Cao, Wenwu.

In: Applied Physics Letters, Vol. 105, No. 21, 212902, 24.11.2014.

Research output: Contribution to journalArticle

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AU - Zheng, Limei

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