Electric Properties of (Na 0.5 Bi 0.5 ) 0.86 Ba 0.14 TiO 3 Single Crystal

Temperature dependence of electric permittivity, pyroelectric current, piezoelectric coefficients (d 33 and d 31 ) and electromechanical coupling factors (k 33 and k 31 ) of (Na 0.5 Bi 0.5 ) 0.86 Ba 0.14 TiO 3 single crystal have been measured. The presented crystal exhibits diffuse phase transition, ferroelectric properties, high piezoelectric coefficient (d 33 , 230 pC/N), and high electromechanical coupling factor (k 33 , 60%). These characteristics make this material interesting for applications.