Role of the Mn-doping on the structural and electromechanical properties of 0.93(PbZn 1/3 Nb 2/3 )-0.07PbTiO 3 single crystals
Résumé
0.93(PbZn 1/3 Nb 2/3 )-0.07PbTiO 3 single crystals with and without MnO 2 addition have been synthesised by the classical flux method. The structural transitions temperatures have been investigated by X-Ray diffraction and dielectric measurements. Mn doping was found to shift down the structural transitions temperatures. Electromechanical and dielectric properties of [111] oriented rhombohedral single domain crystals have shown an intrinsic contribution of Mn doping on the dielectric permittivity (η) and on the piezoelectric coefficient (d 31 ). © 2004 IEEE.
Mots clés
Addition reactions
Doping (additives)
Electric variables measurement
Electromechanical devices
Lead compounds
Manganese
Manganese compounds
Permittivity
Piezoelectricity
Synthesis (chemical)
X ray diffraction analysis
Dielectric measurements
Flux method
Mn doping
Structural transitions
Single crystals