We suggest applying a method of thermally activated spectroscopy to the problem of
impurity optical absorption. The method consists in measuring the temperature dependence …

The temperature dependence of the impurity optical absorption of nominally pure Bi 12 SiO
20 (BSO) crystals and BSO crystals doped with Ga, Cr, Mn, and Ag ions is investigated. A …

A study is reported of the temperature and frequency dependences of the permittivity and
losses in Cr-doped Bi 12 SiO 20 crystals at sonic frequencies and in the range 300–800 K. A …

A study is reported of photo-and thermally induced changes in the optical absorption and
photo-conductivity spectra of Bi 12 SiO 20 crystals in the 0.5–3.5 eV spectral interval, and of …

The spectral and temperature dependence of the optical absorption and thermally
stimulated depolarization currents in Fe-doped Bi 12 SiO 20 and Bi 12 GeO 20 crystals are …

Temperature dependences of the optical absorption of BSO: Cu crystals were investigated at
photon energies between 1.36 and 3.46 eV and temperatures between 85 and 700 K. These …

Anomalies of the dielectric properties of undoped and aluminum-and gallium-doped crystals
of Bi 12 SiO 20 are investigated in the frequency and temperature range ν= 10 2–10 8 Hz …

The effect of visible light on polarization processes in undoped and gallium doped crystals of
silicosillenites (Вi12SiО20 and Вi12SiО20: Ga) was studied using thermoactivation, photo …

The effect of visible light on polarization processes in undoped and gallium doped crystals of
silicosillenites (Bi 12 SiO 20 and Bi 12 SiO 20: Ga) was studied using thermoactivation …