On the polarization caused by bulk charges and the ionic conductivity in TlInSe2 crystals

On the polarization caused by bulk charges and the ionic conductivity in TlInSe2 crystals

TlInSe 2 crystals are investigated in dc and ac electric fields in the temperature range of 100–400 K. A decrease in the electrical conductivity σ with time in a dc field is revealed. The complex-impedance spectra Z *( f ) are measured in the frequency range of 10–10 6 Hz. Diagrams in the ( Z ″- Z ′...

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Veröffentlicht in:Semiconductors (Woodbury, N.Y.) N.Y.), 2014-04, Vol.48 (4), p.427-431
Hauptverfasser: Sardarly, R. M., Samedov, O. A., Alieva, N. A., Abdullayev, A. P., Huseynov, E. K., Hasanov, I. S., Salmanov, F. T.
Format: Artikel
Sprache:eng
Schlagworte:
Electronic Properties of Semiconductors
Magnetic Materials
Magnetism
Physics
Physics and Astronomy
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Zusammenfassung:TlInSe 2 crystals are investigated in dc and ac electric fields in the temperature range of 100–400 K. A decrease in the electrical conductivity σ with time in a dc field is revealed. The complex-impedance spectra Z *( f ) are measured in the frequency range of 10–10 6 Hz. Diagrams in the ( Z ″- Z ′) complex plane are analyzed using the method of equivalent circuits. It is shown that the electrical properties of TlInSe 2 crystals in the investigated ranges of temperatures and frequencies are determined by hopping conductivity and the accumulation of charge carriers near blocking platinum electrodes.
ISSN:1063-7826
1090-6479
DOI:10.1134/S1063782614040253