Open AccessThermodepolarization of Bi12SiO20 Crystals Doped with Fe
Author(s) -
T. V. Panchenko,
L. M. Karpova,
Yu. N. Potapovich
Publication year - 2021
Publication title -
ukrainian journal of physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.213
H-Index - 17
eISSN - 2071-0194
pISSN - 2071-0186
DOI - 10.15407/ujpe66.11.988
Subject(s) - polarization (electrochemistry) , doping , materials science , depolarization , spectroscopy , absorption spectroscopy , condensed matter physics , optics , physics , chemistry , optoelectronics , medicine , quantum mechanics , endocrinology
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) currents and the dependences of the intensities of TSD current peaks on the polarization conditions are obtained. The mechanisms of space charge and quasidipole polarizations are revealed. The temperature dependences of the optical absorption of Bi12SiO20 : Fe crystals are also investigated.