caa a22 4500 606181792 CHVBK 20210128100812.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s10876-015-0865-y doi (NATIONALLICENCE)springer-10.1007/s10876-015-0865-y Dielectric Spectroscopy and Modulus Study of Aluminum Diphosphate AgAlP2O7 [Elektronische Daten] [Y. Taher, A. Oueslati, K. Khirouni, M. Gargouri] Argent aluminum diphosphate were prepared by the standard solid-state reaction technique and characterized by X-ray powder diffraction and IR spectroscopy. The effect of frequency and temperature on the dielectric parameters, such as the dielectric constant ε′, dielectric loss ε″, and the dielectric loss tangent tan δ, have been studied in the temperature range from 440 to 640K and in the frequency range from 40Hz to 100MHz. The modulus data are analyzed using the Kohlraush-Williams-Watts stretched exponential function. An analysis of dielectric loss data obeyed the Guintini's theory of dielectric dispersion based on hopping model. The variation of the power m calculated from dielectric loss ε″, suggested that the transport in this material is explained according to correlated barrier hopping model. The activation energy value estimated from modulus was found to be 0.72eV which is close to the values obtained from the complex polarizability plot. Springer Science+Business Media New York, 2015 IR spectroscopy nationallicence Dielectric spectroscopy nationallicence CBH model nationallicence Modulus nationallicence Complex polarizability nationallicence Taher Y. Condensed Matter Laboratory, Faculty of Sciences, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia aut Oueslati A. Condensed Matter Laboratory, Faculty of Sciences, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia aut Khirouni K. Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à l'Environnement, Faculté des Sciences de Gabès, Gabès, Tunisie aut Gargouri M. Condensed Matter Laboratory, Faculty of Sciences, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia aut Journal of Cluster Science Springer US; http://www.springer-ny.com 26/5(2015-09-01), 1655-1669 1040-7278 26:5<1655 2015 26 10876 https://doi.org/10.1007/s10876-015-0865-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10876-015-0865-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Taher Y. Condensed Matter Laboratory, Faculty of Sciences, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia aut NATIONALLICENCE 700 1- Oueslati A. Condensed Matter Laboratory, Faculty of Sciences, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia aut NATIONALLICENCE 700 1- Khirouni K. Laboratoire de Physique des Matériaux et des Nanomatériaux Appliquée à l'Environnement, Faculté des Sciences de Gabès, Gabès, Tunisie aut NATIONALLICENCE 700 1- Gargouri M. Condensed Matter Laboratory, Faculty of Sciences, University of Sfax, B.P. 1171, 3000, Sfax, Tunisia aut NATIONALLICENCE 773 0- Journal of Cluster Science Springer US; http://www.springer-ny.com 26/5(2015-09-01), 1655-1669 1040-7278 26:5<1655 2015 26 10876