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Effect of Compressive Stress on Dielectric and Ferroelectric Properties of 0.25PSN-0.75PLuN Ceramics

The PSN-PLuN solid solutions have been prepared in the whole composition range for the first time. The dielectric, pyroelectric and hysteresis loops measurements of the 0.25PSN-0.75PLuN ceramics stress-free or under the stress (0-1.5 kbar) have been carried out. It is found that compressive stress shifts the phase transformation and decrease the field-polarization hysteresis. These effects can be mainly connected with the change in domain walls dynamics and with polarization switching under the action of stress.