Elastic, piezoelectric and dielectric properties of PIN-PMN-PT crystals grown by Bridgman method

PIN-PMN-PT (Pb(In
_frac12
Nb
_frac12
)O
₃
-Pb(Mg
_1/3
Nb
_2/3
)O
₃
-PbTiO
₃
) single crystals with 26%-59% PIN were successfully grown by Bridgman technique. Elastic, dielectric and piezoelectric properties of ternary PIN-PMN-PT crystals were studied in comparison with PMN-PT (Pb(Mg
_1/3
Nb
_2/3
)O
₃
- PbTiO
₃
) crystals. It was demonstrated that PIN-PMN-PT crystals possess as excellent piezoelectric properties as PMN-PT crystals, but can be operated at elevated temperature and AC electric field without the depoling issue. T
_RT
of PIN-PMN-PT crystals with 26%-36% PIN were roughly in the range of 115 -135degC, 30-40degC higher than that of PMN-PT crystals; meanwhile, E
_C
were on the order of 4.5-5.6kV/cm, two to three times higher than that of PMN-PT crystals. A full set of measured or derived elastic, piezoelectric and dielectric properties of PIN-PMN-PT crystals are present in this paper.