- Tytuł:
- Conductivity Effects in Bi₂TeO₅ Single Crystals
- Autorzy:
-
Agarkov, K.
Sadovskaya, L. - Powiązania:
- https://bibliotekanauki.pl/articles/1031021.pdf
- Data publikacji:
- 2018-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
- 72.20.Jv
- Opis:
- The current-voltage characteristics (I-V) of non-stoichiometric bismuth tellurite crystals were studied in a range of temperatures from 150°C to 350°C and fields up to 2.5 kV/cm with asymmetric contacts (In-Ga eutectic and Na₂SiO₃). The I-V curves and observed monopolar injection are described by the approximation of space charge limited currents. In the composition of 47% Bi₂O₃-53% TeO₂ electronic conduction is prevailed. In the composition 43% Bi₂O₃-57% TeO₂ the conductivity is contributed by electrons and holes. The spectrum of local states in the band gap of the studied crystals is quasicontinuous, which cannot be described by models of a discrete or exponential distribution.
- Źródło:
-
Acta Physica Polonica A; 2018, 133, 4; 940-942
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł