Abstract
Abstract The bis tetrapropylammonium hexachlorado-dicadmate single crystal has been studied by means of a differential scanning calorimetry, Raman measurements and electrical impedance spectroscopy. Differential scanning calorimetry and Raman measurements performed with temperature to disclose a transition at 420 K and prove a key role of the cations in the mechanisms of disorder found on single crystal. The Z ′ and Z ′′ versus frequency plots are well fitted to an equivalent circuit model. The Kohlrausch–Williams–Watts function and the coupling model are used for analyzing electric modulus at various temperatures. The temperature dependence of the electrical conductivity in the different phases follows the Arrhenius law. The frequency dependence of σ ( ω ) follows the Jonscher's universal dynamic law with the relation σ ( ω ) = σ (0) + Aω n , where ω is the frequency of the AC field, and n is the exponent. The imaginary part of the permittivity constant is analyzed with the Cole–Cole formalism. In the temperature range 377–433 K, the activation energy obtained from the conductivity and the modulus spectra suggests that the ion transport is probably due to a hopping mechanism.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.