Combined electric field and stress-induced R-O phase transformation in [011]-poled Pb (Mg1/3Nb2/3)O3-(28-32) % PbTiO3 single crystals of [011̄]-length cut

Abstract

The combined effects of applied electric field and axial compressive stress on the strain behavior of [011]-poled Pb (Mg1/3Nb2/3) O3-(28-32)%PbTiO3 [PMN-(28-32)%PT] single crystals of [011̄] -length cut have been investigated. For this crystal cut, the axial compressive stress has little effect on the R-O transformation field, the latter being >1.0 kV/mm for PMN-(28-30)%PT. This crystal cut is thus ideal for applications involving large electric field and axial compressive stress. © 2009 American Institute of Physics.