Fundamental limitation to the magnitude of piezoelectric response of 〈001〉 pc textured K 0.5 Na 0.5 NbO 3 ceramic

Shashaank Gupta, Alexei Belianinov, Mahmut Baris Okatan, Stephen Jesse, Sergei V. Kalinin, Shashank Priya

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Abstract

〈001〉 pc textured K 0.5 Na 0.5 NbO 3 (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.

Original languageEnglish (US)
Article number172902
JournalApplied Physics Letters
Volume104
Issue number17
DOIs
StatePublished - Apr 28 2014

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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