Zobrazeno 1 - 10
of 39
pro vyhledávání: '"T. V. Panchenko"'
Publikováno v:
Condensed Matter Physics, Vol 25, Iss 4, p 43705 (2022)
Dielectric permittivity was studied in ceramics of relaxor ferroelectric bismuth-sodium titanate Na_0.5Bi_0.5TiO_3. The measurements were performed on as sintered and heat treated in vacuum samples. The diffuse dielectric anomalies associated with th
Externí odkaz:
https://doaj.org/article/f47572be57d34bbe86ae7855f7cd38ea
Autor:
T. V., Panchenko1 panchtv141@gmail.com, M. P., Trubitsyn1
Publikováno v:
Ukrainian Journal of Physical Optics. 2023, Vol. 24 Issue 4, p4001-4007. 7p.
Publikováno v:
Journal of Physics and Electronics. 29:69-72
The paper reports the results of optical absorption spectra studying in LiNaGe4O9 crystal doped with Mn. It is shown that Mn impurity causes the appearance of the additional absorption bands. The intensities of these bands change in different ways in
Autor:
L. M. Karpova, T. V. Panchenko
Publikováno v:
Journal of Physics and Electronics. 28:29-32
The results of an experimental study of the effect of nonstoichiometric defects in oxygen and the Bi:Si ratio, as well as Cr ions, on the photoconductivity of Bi12SiO20 crystals are presented. It is shown that varying the annealing conditions allows
Autor:
L. M. Karpova, T. V. Panchenko
Publikováno v:
Journal of Physics and Electronics. 28:25-28
The effect of chromium and manganese ions on the dielectric properties of Bi12SiO20 crystals is studied by the dielectric spectroscopy methods in the sound frequency range in the temperature range 280 – 800 K.
Autor:
T. V. Panchenko, L. M. Karpova
Publikováno v:
Journal of Physics and Electronics. 27:85-88
The temperature-frequency dependences of the complex dielectric permittivity ε and the voltage-farad characteristics of undoped and aluminum doped Bi12SiO20 crystals are studied before and after their polarization. It is shown that Al ions in the Bi
Publikováno v:
Ukrainian Journal of Physics; Vol. 66 No. 11 (2021); 988
Український фізичний журнал; Том 66 № 11 (2021); 988
Український фізичний журнал; Том 66 № 11 (2021); 988
The polarization processes in Bi12SiO20 crystals doped with Fe (Bi12SiO20 : Fe) in the temperature interval 300–800 K are studied by the thermoactivation spectroscopy methods. The temperature dependences of the thermostimulated depolarization (TSD)
Autor:
A. O. Diachenko, T. V. Panchenko
Publikováno v:
Molecular Crystals and Liquid Crystals. 673:155-161
Optical absorption of Bi12SiO20 crystals containing nonstoichiometry defects in the cation sublattices was studied in the temperature range 80 ÷ 600 K. It is shown that, at absorption coefficients ...
Autor:
T. V. Panchenko, A. O. Diachenko
Publikováno v:
Acta Physica Polonica A. 133:936-939
Autor:
T. V. Panchenko, S. Fabunmi
Publikováno v:
PROBLEMS IN PROGRAMMING. :093-098