This paper reports on the results of investigations into the transformation of the domain structure of niobium-containing barium titanate crystals in electric fields varied in the same manner as in the stepwise measurement of the polarization curve.
The thermally stimulated transformation of the domain structure of barium strontium niobate crystals with chromium and cerium photorefractive impurities is investigated using the Barkhausen thermal effect for the first time.
Dielectric constant and pyroelectric effect were studied in mixed monoclinic hydrogen and dihydrogen ammonium phosphates and telluium hydroxide (TAAP) crystals within the 20 Hz-20 kHz frequency range at temperatures 10-50 degrees C. The "universal law" formulated for the dielectric response in solids was experimentally tested. The results confirmed the existence of a phase transition at 48 degrees C, as well as the existence of a universal dielectric response.
The experimental data on the temperature-induced rearrangement of the domain structure in pure and doped barium titanate crystals are systematized.
The paper reports the results of studies of repolarization and rearrangement of the domain structure of triglycine sulfate (TGS) crystals containing two impurities, cobalt and chromium. The introduction of these impurities hinders the repolarization of TGS crystals and causes their spontaneous polarization to decrease, the coercive field to increase, and displacement fields to form.
