Investigation of Electromechanical Properties and Related Temperature Characteristics in Domain-Engineered Tetragonal Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 Crystals
Abstract:The orientation-dependent electromechanical properties were calculated for tetragonal Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3– PbTiO3 (PIN–PMN–PT) crystals based on single-domain data. The maximum electromechanical coupling was found to lie along the polar direction , whereas the maximum piezoelectric coefficient was found to occur along . Subsequently, the piezoelectric properties of  poled tetragonal PIN–PMN–PT crystals, with an engineered domain configuration (“2T”), were studied using resonance impedance measurement and strain versus electric field (S–E) behavior, where the piezoelectric coefficient d33 and coupling k33 of  poled crystals were found to be on the order of 1000 pC/N and 0.75, respectively. The high d33 of  poled crystals was associated with the high shear coefficient d15 (∼2300 pC/N) in single domain state. Finally, the piezoelectric and electromechanical properties of  domain engineered tetragonal PIN–PMN–PT crystals were investigated as a function of temperature. In contrast to  single-domain PIN–PMN–PT crystals, the piezoelectric coefficient d33 and coupling k33 of  poled crystals were found to decrease with increasing temperature.
Document Type: Research Article
Affiliations: 1: Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802 2: Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China 3: TRS Technologies Inc., State College, Pennsylvania 16801
Publication date: 2010-09-01