Frequency-dependent dielectric properties and electrical conductivity of CdIn2S4 single crystals

Autor: S. N. Mustafaeva, D. T. Guseinov, M. M. Asadov
Rok vydání: 2011
Předmět:
Zdroj: Inorganic Materials. 47:844-846
ISSN: 1608-3172
0020-1685
DOI: 10.1134/s0020168511080140
Popis: The real (ɛ) and imaginary (ɛ″) parts of complex dielectric permittivity and ac conductivity (σac) of CdIn2S4 single crystals (cubic structure) have been measured in the frequency range f = 5 × 104 to 3.5 × 107 Hz. The results demonstrate that the dielectric dispersion in the crystals has a relaxation nature. In the frequency range f = 5 × 104 to 3.5 × 107 Hz, the ac conductivity of single-crystal CdIn2S4 follows the relation σac ∼ f0.8, characteristic of hopping conduction through localized states near the Fermi level.
Databáze: OpenAIRE