A systematic study of the optimized orientation and temperature dependence of shear-mode piezoelectric properties for ternary (PIN–PMN–PT or PIMNT) piezocrystals was carried out. It was found that [111]-poled samples presented the best shear piezoelectric properties when driving along (the thickness direction). The electromechanical coupling coefficient and piezoelectric coefficient and were found to be 96.4%, 5966 pC/N, and 0.047 Vm/N, respectively, for optimum-cut samples with platinum (Pt) electrode. Besides, the maximum service temperature for shear mode is around , which is much higher than PMNT single crystals.
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