Deduced property matrices of domain-engineered relaxor single crystals of [110]L × [001]T cut: Effects of domain wall contributions and domain-domain interactions

Abstract

Multidomain single crystal properties can be more accurately deduced from measured multidomain data instead of single-domain data, especially for the shear properties and clamped dielectric permittivities, which are strongly influenced by domain wall contributions and domain-domain interactions in the material. Using the above finding, the property matrices of Pb(Zn 1/3Nb2/3)O3-(6-7) % PbTiO3, Pb(Zn1/3Nb2/3)O3-4.5% PbTiO3, and Pb(Mg1/3Nb2/3)O3-28% PbTiO3 single crystals of [110]L × [001]T (P) cut were deduced from the measured [100]L × [001]T (P) multidomain data. The results show that relaxor single crystals of [110]L × [001]T (P) cut have extremely high d31 2/s 11 E values, especially for Pb(Zn1/3Nb 2/3)O3-(6-7) % PbTiO3 of which d 31 2/s11 E ≈52 nN/V2, making such crystal cuts candidate materials for unimorph actuator applications. © 2010 American Institute of Physics.