Aging characteristics of 0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3 single crystals with different crystal orientations

Electric field effect of relaxor ferroelectric (1 − x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 crystals near morphotropic phase boundary composition probed by Brillouin scattering

“…25) Recently, the electric field dependences of the perovskite ferroelectrics in relation to the critical end point (CEP) were studied, and the enhancement of the dielectric response was observed. [26][27][28] At the MPB composition, the intermediate M and O phases between R and T phases of PMN-xPT were revealed 19,26,27,[29][30][31][32] depending on the direction of the applied electric field and their influence on the acoustic phonon is currently under intensive investigations. 33,34) Because of the coupling between the strain and the polarization fluctuations, acoustic properties show anomalous behaviors during phase transitions.…”

“…The electric field dependent Brillouin scattering measurements at the constant temperature of 304 K have been carried out. Many experiments have been conducted on the electric field induced phase transitions of PMN-30PT single crystals 19,31,32,38) and the reported electric fields at which the M A and M C phases appeared are different from one experiment to another. 19) This is because of the difference in the application process of the electric field on the crystal.…”