  We present the technology of obtaining and the electrophysical properties of
a multicomponent material 0.61PMN-0.20PT-0.09PS-0.1PFN:Li (PMN-PT-PS-PFN:Li).
The addition of PFN into PMN-PT decreases the temperature of final sintering
which is very important during technological process (addition of Li decreases
electric conductivity of PFN). Addition of PS i.e., PbSnO_3 (which is unstable
in ceramic form) permits to shift the temperature of the maximum of dielectric
permittivity. One-step method of obtaining ceramic samples from oxides and
carbonates has been used. XRD, microstructure, scanning calorimetry
measurements and the main dielectric, ferroelectric and electromechanical
properties have been investigated for the obtained samples.
