Patent ID: 7972527

Claim:
A ternary single crystal relaxor piezoelectric, comprising, in mole percent: 36% to about 80% Pb(In 1/2 Nb 1/2 )O 3 ; about 10-50% PbTiO 3 ; and the balance Pb(Mg 1/3 Nb 2/3 )O 3 ; wherein the single crystal is grown from a melt and has a crystal orientation in a direction selected from the group consisting of [111], [110] and [001]; and wherein the single crystal is characterized by a Curie temperature T c of at least about 160° C., a rhombohedral to tetragonal phase transition temperature T rt of at least about 120° C. and a piezoelectric coefficient d 33 in the range of at least about 1200 pC/N and a coercive field E c in the range of 2.5-7.5 kv/cm.