The capacitance of (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) [001]-oriented single crystal was examined as a function of temperature and applied external dc electric field. The phase transition temperatures under the applied electric field were measured upon cooling the crystal (zero-field heating field-cooling condition) from paraelectric cubic phase. From these data, temperature versus electric field phase diagram of PMN-xPT crystal have been constructed and discussed.
Temperature- and electric-field-dependent domain structures and phase transformations in (001)-cut tetragonal Pb(Mg1∕3Nb2∕3)1−xTixO3 (x=0.40) single crystal