RELAXOR-PT FERROELECTRIC SINGLE CRYSTALS

摘要

A 110 domain engineered relaxor-PT single crystals having a dielectric loss of about 0.2%, a high electromechanical coupling factor greater than about 85%, and high mechanical quality factor greater than about 500 is disclosed. In one embodiment, the relaxor-PT material has the general formula, Pb(B₁B₂)O₃—Pb(B₃)O₃, where B₁ may be one ion or combination of Mg²⁺, Zn²⁺, Ni²⁺, Sc³⁺, In³⁺, Yb³⁺, B₂ may be one ion or combination of Nb⁵⁺, Ta⁵⁺, W⁶⁺, and B₃ may be Ti⁴⁺ or combination of Ti⁴⁺ with Zr⁴⁺ and/or Hf⁴⁺.