Zobrazeno 1 - 10
of 34
pro vyhledávání: '"V. A. Kirikov"'
Publikováno v:
Physics of the Solid State. 49:930-935
This paper reports on the results of an investigation into the dielectric hysteresis loops of La-and Ce-doped barium strontium niobate, a photosensitive relaxor ferroelectric, both in the dark and under illumination with an intensity of 0.22 mW/cm2.
Publikováno v:
Physics of the Solid State. 48:2146-2149
The reversible permittivity of barium strontium niobate, a photosensitive relaxor ferroelectric, doped with lanthanum and cerium is investigated in the dark and under illumination with a power density of 0.22 mW/cm2. The permittivity is measured unde
Publikováno v:
Physics of the Solid State. 48:1929-1932
The permittivity ɛ of the photosensitive relaxor ferroelectric Sr0.61Ba0.39Nb2O6 doped with La and Ce is studied both in the dark and under illumination with a power density of up to 0.22 W/cm2 in the wavelength range 400–500 nm of the absorption
Publikováno v:
Ferroelectrics. 314:115-121
We have studied the effects of illumination by a photoactive light on the polarization switching of strontium-barium niobate crystals in quasi-static periodic electric field. The illumination results in an increase of the polarization amplitude and o
Publikováno v:
Physics of the Solid State. 45:2171-2177
The dielectric properties of strontium-barium niobate crystals with a strontium concentration of 0.75, which corresponds to the most smeared ferroelectric phase transition, were measured. The dielectric hysteresis loops and the polarization relaxatio
Publikováno v:
Physics of the Solid State. 45:1298-1304
Polarization and repolarization of a (100)-oriented lead magnoniobate crystal in slowly varying and dc electric fields were measured in a temperature interval including the relaxor and field-induced ferroelectric states. Throughout the interval cover
Publikováno v:
Ferroelectrics. 285:275-281
Ferroelectric relaxors lead magnesium niobate (PMN) and barium-strontium niobate (SBN) solid solutions of various compositions are shown to exhibit general features of dielectric properties in infralow frequency range. These features are related to t
Publikováno v:
Physics of the Solid State. 44:365-372
The general features of the slow polarization kinetics in relaxor ferroelectrics, observed and studied by us in the specific example of crystals of barium-strontium niobate (SBN) solid solutions of various compositions and of lead magnesium niobate (
Publikováno v:
Crystallography Reports. 47:130-134
Based on the analysis of the K2O-P2O5-D2O solubility phase diagram, the optimum conditions of KD2PO4 crystallization—the compositions of mother solutions and the temperature range of crystallization—in the KH2PO4-D2O system have been determined.
Publikováno v:
Physics of the Solid State. 43:2140-2145
It is shown experimentally in the specific example of Cr-doped barium-strontium niobate that the anomalies in the infralow-frequency dielectric properties characteristic of a ferroelectric relaxor persist over the whole temperature region of the diff