Piezoelectric Properties And Domain Structure Of The Orthorhombic (K,Na,Li)(Nb,Ta,Sb)O-3 Single Crystal

In this work, (K,Na,Li)(Nb,Ta,Sb)O-3 (KNLNTS) crystal is in the orthorhombic phase at room temperature. The orthorhombic-tetragonal phase transition temperature is 50.0 degrees C, and the Curie temperature T-C of the tetragonal-cubic phase transition temperature is 253.8 degrees C. The crystal is poled, the defects were pinned in specific position, and has positive effect in domain wall motions and better ferroelectric property (P-r is 6.49 mu C/cm(2), E-c is 6.66kV/cm). The domain configrations of the crystal were studied by means of a polarizing light microscopy (PLM), with poling along [100](C) direction.