Pb(Zn1/3Nb2/3)O-3-PbTiO3 single crystal and device development

This paper describes recent device developments with relaxor ferroelectric Pb(Zn1/3Nb2/3)O-3-PbTiO3 (PZN-PT) single crystals carried out at Microfine Materials Technologies Pte. Ltd, Singapore. Promising [011]-poled transverse cuts of PZN-PT single crystals and the results on the effect of electric field and axial compressive stress on the rhombohedral-to-orthorhombic (R-O) phase transformation behavior of such cuts are presented and discussed. The single crystal devices described include a compact lowfrequency broadband power-efficient underwater tonpilz projector, high sensitivity shear accelerometers and acoustic vector sensors (AVS). The unique characteristics offered by these PZN-PT single crystal devices are highlighted, which serve as examples of newgeneration piezoelectric devices and systems for a wide range of demanding applications.